Added GameSelection + Logic

Now First screen is a game selection screen, second screen is the
settings screen where characters, karts, etc can be found.

app/build.gradle

@@ -7,8 +7,8 @@ android {
         applicationId "com.de.aldo_apps.aldo.mariokartcircuitselector"
         minSdkVersion 16
         targetSdkVersion 25
-        versionCode 7
+        versionCode 16
-        versionName "0.1.7"
+        versionName "0.1.16"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
@@ -24,8 +24,14 @@ dependencies {
     androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
-    compile 'com.android.support:appcompat-v7:25.+'
+    compile 'com.android.support:appcompat-v7:25.3.1'
     compile 'com.android.support.constraint:constraint-layout:1.0.2'
-    compile 'com.readystatesoftware.sqliteasset:sqliteassethelper:+'
+    compile 'com.afollestad.material-dialogs:core:0.9.4.3'
+    compile 'com.squareup.picasso:picasso:2.5.2'
+    compile 'com.readystatesoftware.sqliteasset:sqliteassethelper:2.0.1'
+    compile 'devlight.io:navigationtabbar:1.2.5'
+    compile 'com.android.support:cardview-v7:25.3.1'
+    compile 'de.hdodenhof:circleimageview:2.1.0'
+    compile 'com.android.support:design:25.3.1'
     testCompile 'junit:junit:4.12'
 }

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.de.aldo_apps.aldo.mariokartcircuitselector">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -9,13 +11,45 @@
         android:roundIcon="@mipmap/ic_launcher_round"
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
-        <activity android:name=".GameSelection">
+        <activity
+            android:name=".activities.GameSelectionActivity"
+            android:label="@string/title_activity_game_selection"
+            android:theme="@style/AppTheme.NoActionBar">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
+        <activity android:name=".activities.GameSettingsActivity"/>
+
+        <provider
+            android:name=".CharacterContentProvider"
+            android:authorities="com.de.aldo_apps.aldo.mariokartcircuitselector"
+            android:enabled="true"
+            android:exported="true" />
+        <provider
+            android:name=".WheelsContentProvider"
+            android:authorities="com.de.aldo_apps.aldo.mariokartcircuitselector"
+            android:enabled="true"
+            android:exported="true" />
+        <provider
+            android:name=".TrackContentProvider"
+            android:authorities="com.de.aldo_apps.aldo.mariokartcircuitselector"
+            android:enabled="true"
+            android:exported="true" />
+        <provider
+            android:name=".KartContentProvider"
+            android:authorities="com.de.aldo_apps.aldo.mariokartcircuitselector"
+            android:enabled="true"
+            android:exported="true" />
+        <provider
+            android:name=".AccessoryContentProvider"
+            android:authorities="com.de.aldo_apps.aldo.mariokartcircuitselector"
+            android:enabled="true"
+            android:exported="true" />
+
     </application>
 
 </manifest>

app/src/main/assets/databases/mario_kart_circuit_selector_upgrade_1-2.sql

@@ -0,0 +1,6 @@
+ALTER TABLE track ADD cover_uri TEXT;
+ALTER TABLE wheels ADD cover_uri TEXT;
+ALTER TABLE kart ADD cover_uri TEXT;
+ALTER TABLE accessory ADD cover_uri TEXT;
+ALTER TABLE character ADD cover_uri TEXT;
+

app/src/main/assets/databases/mario_kart_circuit_selector_upgrade_2-3.sql

@@ -0,0 +1,60 @@
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Peach.png" WHERE `_rowid_`='1';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Mario.png" WHERE `_rowid_`='2';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Luigi.png" WHERE `_rowid_`='3';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Toad.png" WHERE `_rowid_`='4';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Koopa.png" WHERE `_rowid_`='5';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Bowser.png" WHERE `_rowid_`='6';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Yoshi.png" WHERE `_rowid_`='7';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:SMK_Sprite_Donkey_Kong_Jr..png" WHERE `_rowid_`='8';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Mario.gif" WHERE `_rowid_`='9';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Luigi.gif" WHERE `_rowid_`='10';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Peach.jpg" WHERE `_rowid_`='11';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Toad.jpg" WHERE `_rowid_`='12';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Yoshi.gif" WHERE `_rowid_`='13';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_DK.gif" WHERE `_rowid_`='14';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Wario.jpg" WHERE `_rowid_`='15';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MK64_Artwork_Bowser.gif" WHERE `_rowid_`='16';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Mario.png" WHERE `_rowid_`='17';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Luigi.png" WHERE `_rowid_`='18';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Peach.png" WHERE `_rowid_`='19';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Toad.png" WHERE `_rowid_`='20';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Yoshi.png" WHERE `_rowid_`='21';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Donkey_Kong.png" WHERE `_rowid_`='22';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Wario.png" WHERE `_rowid_`='23';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKSC_Sprite_Bowser.png" WHERE `_rowid_`='24';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Mario.png" WHERE `_rowid_`='25';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Luigi.png" WHERE `_rowid_`='26';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Peach.png" WHERE `_rowid_`='27';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Daisy.png" WHERE `_rowid_`='28';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Yoshi.png" WHERE `_rowid_`='29';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Birdo.png" WHERE `_rowid_`='30';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Baby_Mario.png" WHERE `_rowid_`='31';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Baby_Luigi.png" WHERE `_rowid_`='32';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Toad.png" WHERE `_rowid_`='33';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Toadette.png" WHERE `_rowid_`='34';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Koopa.png" WHERE `_rowid_`='35';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Parakoopa.png" WHERE `_rowid_`='36';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Donkey_Kong.png" WHERE `_rowid_`='37';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Diddy_Kong.png" WHERE `_rowid_`='38';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Bowser.png" WHERE `_rowid_`='39';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Bowser_Jr.png" WHERE `_rowid_`='40';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Wario.png" WHERE `_rowid_`='41';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Waluigi.png" WHERE `_rowid_`='42';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_Mutant-Tyranha.png" WHERE `_rowid_`='43';
+UPDATE `character` SET `cover_uri`="http://mariowiki.net/wiki/Datei:MKDD_Sprite_König_Buu_Huu.png" WHERE `_rowid_`='44';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Mario_Artwork.png" WHERE `_rowid_`='45';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Luigi_Artwork.png" WHERE `_rowid_`='46';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Peach_Artwork.png" WHERE `_rowid_`='47';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Yoshi_Artwork.png" WHERE `_rowid_`='48';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Toad_Artwork.png" WHERE `_rowid_`='49';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Donkey_Kong_Artwork.png" WHERE `_rowid_`='50';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Wario_Artwork.png" WHERE `_rowid_`='51';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/File:MKDS-Bowser_Artwork.png" WHERE `_rowid_`='52';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/images/thumb/2/2d/PrincessDaisyMKDS.png/120px-PrincessDaisyMKDS.png" WHERE `_rowid_`='53';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/images/thumb/5/53/MKDS-Dry_Bones_Artwork.png/120px-MKDS-Dry_Bones_Artwork.png" WHERE `_rowid_`='54';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/images/thumb/b/bb/MKDS-Waluigi_Artwork.png/103px-MKDS-Waluigi_Artwork.png" WHERE `_rowid_`='55';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/images/thumb/b/b5/MKDS-ROB_Artwork.png/120px-MKDS-ROB_Artwork.png" WHERE `_rowid_`='56';
+UPDATE `character` SET `cover_uri`="https://www.mariowiki.com/images/thumb/6/6b/Shy_Guy_-_MKDS.png/120px-Shy_Guy_-_MKDS.png" WHERE `_rowid_`='57';
+
+
+

app/src/main/assets/databases/mario_kart_circuit_selector_upgrade_3-4.sql

@@ -0,0 +1,2 @@
+UPDATE `character` SET `cover_uri`="";
+

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/AccessoryContentProvider.java

@@ -0,0 +1,155 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * The ContentProvider which retrieves the Accessory Data.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class AccessoryContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "AccessoryProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/accessories");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/CharacterContentProvider.java

@@ -0,0 +1,154 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * The ContentProvider which retrieves the Character Data.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class CharacterContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "CharacterProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/characters");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/Constants.java

@@ -5,27 +5,77 @@ package com.de.aldo_apps.aldo.mariokartcircuitselector;
  * centralized class.
  *
  * @author aldo7224
- * @version 0.1
+ * @version 0.2
- * @since 07.08.2017
+ * @since 17.08.2017
  */
-public class Constants {
+public final class Constants {
 
     /**
      * The Version Code of the Database.
      */
-    static final Integer DATABASE_VERSION = 1;
+    static final Integer DATABASE_VERSION = 4;
 
     /**
      * As SQLite does not have a native boolean value, we use integers to represent true and false.
      * This is the value for a true statement.
      */
-    public final static Integer TRUE = 1;
+    public static final Integer TRUE = 1;
 
     /**
      * As SQLite does not have a native boolean value, we use integers to represent true and false.
      * This is the value for a false statement.
      */
-    final static Integer FALSE = 0;
+    public final static Integer FALSE = 0;
+
+    /**
+     * The Base LoaderID.
+     */
+    public static final int BASE_LOADER_ID = 0;
+
+    /**
+     * LoaderID of the character loader.
+     */
+    public static final int CHARACTER_LOADER_ID = BASE_LOADER_ID;
+
+    /**
+     * LoaderID of the kart loader.
+     */
+    public static final int KART_LOADER_ID = BASE_LOADER_ID + 1;
+
+    /**
+     * LoaderID of the track loader.
+     */
+    public static final int TRACK_LOADER_ID = BASE_LOADER_ID + 2;
+
+    /**
+     * LoaderID of the accessory loader.
+     */
+    public static final int ACCESSORY_LOADER_ID = BASE_LOADER_ID + 3;
+
+    /**
+     * LoaderID of the wheels loader.
+     */
+    public static final int WHEELS_LOADER_ID = BASE_LOADER_ID + 4;
+
+    /**
+     * LoaderID of the game loader.
+     */
+    public static final int GAME_LOADER_ID = BASE_LOADER_ID + 5;
+
+    /**
+     * LoaderID of the ruleset loader.
+     */
+    public static final int RULESET_LOADER_ID = BASE_LOADER_ID + 6;
+
+    /**
+     * The Key for the projection being provided via a bundle.
+     */
+    public static final String PROJECTION_KEY = "projection";
+
+    /**
+     * The Key for the loaderId being provided via a bundle.
+     */
+    public static final String LOADER_ID_KEY = "loader_id";
 
     /**
      * The Name of the complete database.
@@ -70,102 +120,107 @@ public class Constants {
     /**
      * The global KEY for the _id field in the database.
      */
-    static final String KEY_ID = "_id";
+    public static final String KEY_ID = "_id";
 
     /**
      * The global KEY for the name field in the database.
      */
-    static final String KEY_NAME = "name";
+    public static final String KEY_NAME = "name";
 
     /**
      * The global KEY for the game field in the database.
      */
-    static final String KEY_GAME = "game";
+    public static final String KEY_GAME = "game";
 
     /**
      * The global KEY for the available field in the database.
      */
-    static final String KEY_AVAILABLE = "available";
+    public static final String KEY_AVAILABLE = "available";
 
     /**
      * The global KEY for the weight field in the database.
      */
-    static final String KEY_WEIGHT = "weight";
+    public static final String KEY_WEIGHT = "weight";
 
     /**
      * The global KEY for the cover uri field in the database.
      */
-    static final String KEY_COVER_URI = "cover_uri";
+    public static final String KEY_COVER_URI = "cover_uri";
 
     /**
      * The global KEY for the wheels field in the database.
      */
-    static final String KEY_WHEELS = "wheels";
+    public static final String KEY_WHEELS = "wheels";
 
     /**
      * The global KEY for the accessory field in the database.
      */
-    static final String KEY_ACCESSORY = "accessory";
+    public static final String KEY_ACCESSORY = "accessory";
 
     /**
      * The global KEY for the dedicated driver field in the database.
      */
-    static final String KEY_DEDICATED_DRIVER = "dedicated_driver";
+    public static final String KEY_DEDICATED_DRIVER = "dedicated_driver";
 
     /**
      * The global KEY for the free for all field in the database.
      */
-    static final String KEY_FREE_FOR_ALL = "free_for_all";
+    public static final String KEY_FREE_FOR_ALL = "free_for_all";
 
     /**
      * The global KEY for the mirror class field in the database.
      */
-    static final String KEY_MIRROR_CLASS = "mirror_class";
+    public static final String KEY_MIRROR_CLASS = "mirror_class";
 
     /**
      * The global KEY for the 50 ccm field in the database.
      */
-    static final String KEY_50_CCM = "50_ccm";
+    public static final String KEY_50_CCM = "50_ccm";
 
     /**
      * The global KEY for the 100 ccm field in the database.
      */
-    static final String KEY_100_CCM = "100_ccm";
+    public static final String KEY_100_CCM = "100_ccm";
 
     /**
      * The global KEY for the 150 ccm field in the database.
      */
-    static final String KEY_150_CCM = "150_ccm";
+    public static final String KEY_150_CCM = "150_ccm";
 
     /**
      * The global KEY for the 200 ccm field in the database.
      */
-    static final String KEY_200_CCM = "200_ccm";
+    public static final String KEY_200_CCM = "200_ccm";
 
     /**
      * The global KEY for the kart free for all field in the database.
      */
-    static final String KEY_KART_FREE_FOR_ALL = "kart_free_for_all";
+    public static final String KEY_KART_FREE_FOR_ALL = "kart_free_for_all";
 
     /**
      * The global KEY for the bikes field in the database.
      */
-    static final String KEY_BIKES = "bikes";
+    public static final String KEY_BIKES = "bikes";
 
     /**
      * The global KEY for the package field in the database.
      */
-    static final String KEY_PACKAGE = "package";
+    public static final String KEY_PACKAGE = "package";
 
     /**
      * The global KEY for the number field in the database.
      */
-    static final String KEY_NUMBER = "number";
+    public static final String KEY_NUMBER = "number";
+
+    /**
+     * Global constant defining the where game is <game_name> clause.
+     */
+    public static final String SELECT_WHERE_GAME = " game = ?";
 
     /**
      * The Projection to retrieve all Information of a game object from database.
      */
-    static final String[] PROJECTION_GAME = {
+    public static final String[] PROJECTION_GAME = {
             KEY_ID,
             KEY_NAME,
             KEY_COVER_URI
@@ -174,30 +229,32 @@ public class Constants {
     /**
      * The Projection to retrieve all Information of a track object from database.
      */
-    static final String[] PROJECTION_TRACK = {
+    public static final String[] PROJECTION_TRACK = {
             KEY_ID,
             KEY_NAME,
             KEY_GAME,
             KEY_PACKAGE,
             KEY_NUMBER,
+            KEY_COVER_URI,
             KEY_AVAILABLE
     };
 
     /**
      * The Projection to retrieve all Information of a character object from database.
      */
-    static final String[] PROJECTION_CHARACTER = {
+    public static final String[] PROJECTION_CHARACTER = {
             KEY_ID,
             KEY_NAME,
             KEY_GAME,
             KEY_WEIGHT,
+            KEY_COVER_URI,
             KEY_AVAILABLE
     };
 
     /**
      * The Projection to retrieve all Information of a kart object from database.
      */
-    static final String[] PROJECTION_KART = {
+    public static final String[] PROJECTION_KART = {
             KEY_ID,
             KEY_NAME,
             KEY_GAME,
@@ -206,13 +263,14 @@ public class Constants {
             KEY_ACCESSORY,
             KEY_DEDICATED_DRIVER,
             KEY_FREE_FOR_ALL,
+            KEY_COVER_URI,
             KEY_AVAILABLE
     };
 
     /**
      * The Projection to retrieve all Information of a ruleset object from database.
      */
-    static final String[] PROJECTION_RULESET = {
+    public static final String[] PROJECTION_RULESET = {
             KEY_ID,
             KEY_GAME,
             KEY_MIRROR_CLASS,
@@ -227,20 +285,22 @@ public class Constants {
     /**
      * The Projection to retrieve all Information of a accessory object from database.
      */
-    static final String[] PROJECTION_ACCESSORY = {
+    public static final String[] PROJECTION_ACCESSORY = {
             KEY_ID,
             KEY_NAME,
             KEY_GAME,
+            KEY_COVER_URI,
             KEY_AVAILABLE
     };
 
     /**
      * The Projection to retrieve all Information of a wheels object from database.
      */
-    static final String[] PROJECTION_WHEELS = {
+    public static final String[] PROJECTION_WHEELS = {
             KEY_ID,
             KEY_NAME,
             KEY_GAME,
+            KEY_COVER_URI,
             KEY_AVAILABLE
     };
 }

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/DatabaseHandler.java

@@ -3,16 +3,13 @@ package com.de.aldo_apps.aldo.mariokartcircuitselector;
 import android.content.ContentValues;
 import android.content.Context;
 import android.database.Cursor;
-import android.database.DatabaseUtils;
 import android.database.sqlite.SQLiteDatabase;
-import android.support.annotation.Nullable;
 import android.util.Log;
 
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Accessory;
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Character;
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Game;
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Kart;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Ruleset;
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Track;
 import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Wheels;
 import com.readystatesoftware.sqliteasset.SQLiteAssetHelper;
@@ -57,134 +54,76 @@ public class DatabaseHandler extends SQLiteAssetHelper {
     /**
      * Helper method to update the availability status of a single track.
      *
-     * @param track       The track which should be marked as available/unavailable.
+     * @param values        The values to be put into the database.
-     * @param isAvailable The status of availability to be set.
+     * @param selection     The selection clause
-     *
+     * @param selectionArgs The Arguments for the selection clause.
      * @return The result code of the update function.
      */
-    public int changeTrackAvailability(final Track track,
+    public int changeTrackAvailability(final ContentValues values,
-                                       final boolean isAvailable) {
+                                       final String selection,
+                                       final String[] selectionArgs) {
         final SQLiteDatabase db = this.getWritableDatabase();
-
+        return db.update(Constants.TABLE_TRACK, values, selection, selectionArgs);
-        final ContentValues values = new ContentValues();
-        values.put(Constants.KEY_GAME, track.getGame());
-        values.put(Constants.KEY_NAME, track.getName());
-        values.put(Constants.KEY_PACKAGE, track.getPackage());
-        values.put(Constants.KEY_NUMBER, track.getNumber());
-        if (isAvailable) {
-            values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
-        } else {
-            values.put(Constants.KEY_AVAILABLE, Constants.FALSE);
-        }
-
-        return db.update(Constants.TABLE_TRACK, values, Constants.KEY_ID + " = ?",
-                new String[]{String.valueOf(track.getId())});
     }
 
     /**
      * Helper method to update the availability status of a single character.
      *
-     * @param character   The character which should be marked as available/unavailable.
+     * @param values        The values to be put into the database.
-     * @param isAvailable The status of availability to be set.
+     * @param selection     The selection clause
-     *
+     * @param selectionArgs The Arguments for the selection clause.
      * @return The result code of the update function.
      */
-    public int changeCharacterAvailability(final Character character,
+    public int changeCharacterAvailability(final ContentValues values,
-                                           final boolean isAvailable) {
+                                           final String selection,
+                                           final String[] selectionArgs) {
         final SQLiteDatabase db = this.getWritableDatabase();
-
+        return db.update(Constants.TABLE_CHARACTER, values, selection, selectionArgs);
-        final ContentValues values = new ContentValues();
-        values.put(Constants.KEY_GAME, character.getGame());
-        values.put(Constants.KEY_NAME, character.getName());
-        values.put(Constants.KEY_WEIGHT, character.getWeight());
-        if (isAvailable) {
-            values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
-        } else {
-            values.put(Constants.KEY_AVAILABLE, Constants.FALSE);
-        }
-
-        return db.update(Constants.TABLE_CHARACTER, values, Constants.KEY_ID + " = ?",
-                new String[]{String.valueOf(character.getId())});
     }
 
     /**
      * Helper method to update the availability status of a single kart.
      *
-     * @param kart        The kart which should be marked as available/unavailable.
+     * @param values        The values to be put into the database.
-     * @param isAvailable The status of availability to be set.
+     * @param selection     The selection clause
-     *
+     * @param selectionArgs The Arguments for the selection clause.
      * @return The result code of the update function.
      */
-    public int changeKartAvailability(final Kart kart,
+    public int changeKartAvailability(final ContentValues values,
-                                      final boolean isAvailable) {
+                                      final String selection,
+                                      final String[] selectionArgs) {
         final SQLiteDatabase db = this.getWritableDatabase();
-
+        return db.update(Constants.TABLE_KART, values, selection, selectionArgs);
-        final ContentValues values = new ContentValues();
-        values.put(Constants.KEY_GAME, kart.getGame());
-        values.put(Constants.KEY_NAME, kart.getName());
-        values.put(Constants.KEY_WEIGHT, kart.getWeight());
-        values.put(Constants.KEY_WHEELS, kart.getWheels());
-        values.put(Constants.KEY_ACCESSORY, kart.getAccessory());
-        values.put(Constants.KEY_DEDICATED_DRIVER, kart.getDedicatedDriver());
-        values.put(Constants.KEY_FREE_FOR_ALL, kart.getFreeForAll());
-        if (isAvailable) {
-            values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
-        } else {
-            values.put(Constants.KEY_AVAILABLE, Constants.FALSE);
-        }
-
-        return db.update(Constants.TABLE_KART, values, Constants.KEY_ID + " = ?",
-                new String[]{String.valueOf(kart.getId())});
     }
 
     /**
      * Helper method to update the availability status of a single accessory.
      *
-     * @param accessory   The accessory which should be marked as available/unavailable.
+     * @param values        The values to be put into the database.
-     * @param isAvailable The status of availability to be set.
+     * @param selection     The selection clause
-     *
+     * @param selectionArgs The Arguments for the selection clause.
      * @return The result code of the update function.
      */
-    public int changeAccessoryAvailability(final Accessory accessory,
+    public int changeAccessoryAvailability(final ContentValues values,
-                                           final boolean isAvailable) {
+                                           final String selection,
+                                           final String[] selectionArgs) {
         final SQLiteDatabase db = this.getWritableDatabase();
-
+        return db.update(Constants.TABLE_ACCESSORY, values, selection, selectionArgs);
-        final ContentValues values = new ContentValues();
-        values.put(Constants.KEY_GAME, accessory.getGame());
-        values.put(Constants.KEY_NAME, accessory.getName());
-        if (isAvailable) {
-            values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
-        } else {
-            values.put(Constants.KEY_AVAILABLE, Constants.FALSE);
-        }
-
-        return db.update(Constants.TABLE_ACCESSORY, values, Constants.KEY_ID + " = ?",
-                new String[]{String.valueOf(accessory.getId())});
     }
 
     /**
      * Helper method to update the availability status of a single wheels.
      *
-     * @param wheels      The wheels which should be marked as available/unavailable.
+     * @param values        The values to be put into the database.
-     * @param isAvailable The status of availability to be set.
+     * @param selection     The selection clause
-     *
+     * @param selectionArgs The Arguments for the selection clause.
      * @return The result code of the update function.
      */
-    public int changeWheelsAvailability(final Wheels wheels,
+    public int changeWheelsAvailability(final ContentValues values,
-                                        final boolean isAvailable) {
+                                        final String selection,
+                                        final String[] selectionArgs) {
         final SQLiteDatabase db = this.getWritableDatabase();
-
+        return db.update(Constants.TABLE_WHEELS, values, selection, selectionArgs);
-        final ContentValues values = new ContentValues();
-        values.put(Constants.KEY_GAME, wheels.getGame());
-        values.put(Constants.KEY_NAME, wheels.getGame());
-        if (isAvailable) {
-            values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
-        } else {
-            values.put(Constants.KEY_AVAILABLE, Constants.FALSE);
-        }
-
-        return db.update(Constants.TABLE_WHEELS, values, Constants.KEY_ID + " = ?",
-                new String[]{String.valueOf(wheels.getId())});
     }
 
     // -------------------------------------------------------------------------------------------
@@ -195,634 +134,110 @@ public class DatabaseHandler extends SQLiteAssetHelper {
      * Retrieves all Tracks from Database. If a Game is provided, all tracks of this specific
      * game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
-     * 
      * @return List containing all Track Objects retrieved from Database.
      */
-    public ArrayList<Track> getAllTracks(@Nullable final Game game,
+    public Cursor getAllTracks(final String[] projection,
-                                         final boolean onlyAvailable) {
+                               final String selection,
+                               final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllTracks: Creating Cursor for Tracks.");
-        final String[] selectionArgs;
+        final Cursor cursor = database.query(Constants.TABLE_TRACK, projection,
-        if (game != null && onlyAvailable) {
+                selection, selectionArgs, null, null, null, null);
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
+        return cursor;
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-        
-        final Cursor cursor = database.query(Constants.TABLE_TRACK, Constants.PROJECTION_TRACK,
-                selectionClause, selectionArgs, null, null, null, null);
-        if (cursor != null) {
-            Log.d(TAG, "getAllTracks: Moving cursor to first.");
-            cursor.moveToFirst();
-        } else {
-            Log.d(TAG, "getAllTracks: cursor is null");
-            return null;
-        }
-
-        final ArrayList<Track> allAvailableTrack = new ArrayList<>();
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int packageIdx = cursor.getColumnIndex(Constants.KEY_PACKAGE);
-            final int numberIdx = cursor.getColumnIndex(Constants.KEY_NUMBER);
-            final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-            final Track track = new Track();
-            boolean isValid = true;
-            if (idIdx >= 0) {
-                track.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                track.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                track.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (packageIdx >= 0) {
-                track.setPackage(cursor.getString(packageIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_PACKAGE + "]");
-                isValid = false;
-            }
-
-            if (numberIdx >= 0) {
-                track.setPackage(cursor.getString(numberIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_NUMBER + "]");
-                isValid = false;
-            }
-
-            if (availableIdx < 0) {
-                track.setAvailable(cursor.getInt(availableIdx));
-            } else {
-                Log.d(TAG, "getAllTracks: No such column [" + Constants.KEY_AVAILABLE + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableTrack.add(track);
-            } else {
-                Log.d(TAG, "getAllTracks: Do not add Track as one or more arguments are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableTrack;
     }
 
     /**
      * Retrieves all Karts from Database. If a Game is provided, all karts of this specific
      * game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
-     *
      * @return List containing all Kart Objects retrieved from Database.
      */
-    public ArrayList<Kart> getAllKarts(@Nullable final Game game,
+    public Cursor getAllKarts(final String[] projection,
-                                       final boolean onlyAvailable) {
+                              final String selection,
+                              final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllKarts: Creating Cursor for Karts.");
-        final String[] selectionArgs;
+        final Cursor cursor = database.query(Constants.TABLE_KART, projection, selection,
-        if (game != null && onlyAvailable) {
+                selectionArgs, null, null, null, null);
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
+        return cursor;
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-
-        final Cursor cursor = database.query(Constants.TABLE_KART, Constants.PROJECTION_KART,
-                selectionClause, selectionArgs, null, null, null, null);
-        if (cursor != null) {
-            Log.d(TAG, "getAllKarts: Moving cursor to first.");
-            cursor.moveToFirst();
-        } else {
-            Log.d(TAG, "getAllKarts: cursor is null");
-            return null;
-        }
-
-        final ArrayList<Kart> allAvailableKarts = new ArrayList<>();
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int weightIdx = cursor.getColumnIndex(Constants.KEY_WEIGHT);
-            final int accessoryIdx = cursor.getColumnIndex(Constants.KEY_ACCESSORY);
-            final int wheelsIdx = cursor.getColumnIndex(Constants.KEY_WHEELS);
-            final int freeForAllIdx = cursor.getColumnIndex(Constants.KEY_FREE_FOR_ALL);
-            final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-            final Kart kart = new Kart();
-            boolean isValid = true;
-            if (idIdx >= 0) {
-                kart.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                kart.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                kart.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (weightIdx >= 0) {
-                kart.setWeight(cursor.getString(weightIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_WEIGHT + "]");
-                isValid = false;
-            }
-
-            if (accessoryIdx >= 0) {
-                kart.setAccessory(cursor.getInt(accessoryIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_ACCESSORY + "]");
-                isValid = false;
-            }
-
-            if (wheelsIdx >= 0) {
-                kart.setWheels(cursor.getInt(wheelsIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_WHEELS + "]");
-                isValid = false;
-            }
-
-            if (freeForAllIdx >= 0) {
-                kart.setFreeForAll(cursor.getInt(freeForAllIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_FREE_FOR_ALL + "]");
-                isValid = false;
-            }
-
-            if (availableIdx < 0) {
-                kart.setAvailable(cursor.getInt(availableIdx));
-            } else {
-                Log.d(TAG, "getAllKarts: No such column [" + Constants.KEY_AVAILABLE + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableKarts.add(kart);
-            } else {
-                Log.d(TAG, "getAllKarts: Do not add Kart as one or more arguments are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableKarts;
     }
 
     /**
      * Retrieves all Characters from Database. If a Game is provided, all characters of this
      * specific game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
+     * @param projection    The character projection.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
+     * @param selection     The selection clause.
-     *
+     * @param selectionArgs The selection arguments.
-     * @return List containing all Character Objects retrieved from Database.
+     * @return Cursor containing all Character Objects retrieved from Database.
      */
-    public ArrayList<Character> getAllCharacters(@Nullable final Game game,
+    public Cursor getAllCharacters(final String[] projection,
-                                                 final boolean onlyAvailable) {
+                                   final String selection,
+                                   final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllCharacters: Creating Cursor for Characters.");
-        final String[] selectionArgs;
-        if (game != null && onlyAvailable) {
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-
         final Cursor cursor = database.query(Constants.TABLE_CHARACTER,
-                Constants.PROJECTION_CHARACTER, selectionClause, selectionArgs, null, null, null,
+                projection, selection, selectionArgs, null, null, null,
                 null);
 
-        final ArrayList<Character> allAvailableCharacters = new ArrayList<>();
+        return cursor;
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int weightIdx = cursor.getColumnIndex(Constants.KEY_WEIGHT);
-            final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-            final Character character = new Character();
-            boolean isValid = true;
-
-            if (idIdx >= 0) {
-                character.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllCharacters: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                character.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllCharacters: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                character.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllCharacters: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (weightIdx >= 0) {
-                character.setWeight(cursor.getString(weightIdx));
-            } else {
-                Log.d(TAG, "getAllCharacters: No such column [" + Constants.KEY_WEIGHT + "]");
-                isValid = false;
-            }
-
-            if (availableIdx < 0) {
-                character.setAvailable(cursor.getInt(availableIdx));
-            } else {
-                Log.d(TAG, "getAllCharacters: No such column [" + Constants.KEY_AVAILABLE + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableCharacters.add(character);
-            } else {
-                Log.d(TAG, "getAllCharacters: Do not add Character as one or more arguments " +
-                        "are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableCharacters;
     }
 
     /**
      * Retrieves all Rulesets from Database. If a Game is provided, the ruleset of this specific
      * game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
-     *
      * @return List containing all Ruleset Objects retrieved from Database.
      */
-    public ArrayList<Ruleset> getAllRulesets(@Nullable final Game game,
+    public Cursor getAllRulesets(final String[] projection,
-                                             final boolean onlyAvailable) {
+                                 final String selection,
+                                 final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllRulesets: Creating Cursor for Rulesets.");
-        final String[] selectionArgs;
+        final Cursor cursor = database.query(Constants.TABLE_RULESET, projection, selection,
-        if (game != null && onlyAvailable) {
+                selectionArgs, null, null, null, null);
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
+        return cursor;
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-
-        final Cursor cursor = database.query(Constants.TABLE_RULESET, Constants.PROJECTION_RULESET,
-                selectionClause, selectionArgs, null, null, null, null);
-
-        final ArrayList<Ruleset> allAvailableRulesets = new ArrayList<>();
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int mirrorIdx = cursor.getColumnIndex(Constants.KEY_MIRROR_CLASS);
-            final int ccm50Idx = cursor.getColumnIndex(Constants.KEY_50_CCM);
-            final int ccm100Idx = cursor.getColumnIndex(Constants.KEY_100_CCM);
-            final int ccm150Idx = cursor.getColumnIndex(Constants.KEY_150_CCM);
-            final int ccm200Idx = cursor.getColumnIndex(Constants.KEY_200_CCM);
-            final int freeForAllIdx = cursor.getColumnIndex(Constants.KEY_KART_FREE_FOR_ALL);
-            final int bikesIdx = cursor.getColumnIndex(Constants.KEY_BIKES);
-
-            final Ruleset ruleset = new Ruleset();
-            boolean isValid = true;
-
-            if (idIdx >= 0) {
-                ruleset.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                ruleset.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (mirrorIdx >= 0) {
-                ruleset.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (ccm50Idx >= 0) {
-                ruleset.set50CcmAvailable(cursor.getInt(ccm50Idx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_50_CCM + "]");
-                isValid = false;
-            }
-
-            if (ccm100Idx >= 0) {
-                ruleset.set100CcmAvailable(cursor.getInt(ccm100Idx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_100_CCM + "]");
-                isValid = false;
-            }
-
-            if (ccm150Idx >= 0) {
-                ruleset.set150CcmAvailable(cursor.getInt(ccm150Idx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_150_CCM + "]");
-                isValid = false;
-            }
-
-            if (ccm200Idx >= 0) {
-                ruleset.set200CcmAvailable(cursor.getInt(ccm200Idx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_200_CCM + "]");
-                isValid = false;
-            }
-
-            if (freeForAllIdx >= 0) {
-                ruleset.setKartsFreeForAll(cursor.getInt(freeForAllIdx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_KART_FREE_FOR_ALL
-                        + "]");
-                isValid = false;
-            }
-
-            if (bikesIdx >= 0) {
-                ruleset.setBikesAvailable(cursor.getInt(bikesIdx));
-            } else {
-                Log.d(TAG, "getAllRulesets: No such column [" + Constants.KEY_BIKES + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableRulesets.add(ruleset);
-            } else {
-                Log.d(TAG, "getAllRulesets: Do not add Ruleset as one or more arguments " +
-                        "are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableRulesets;
     }
 
     /**
      * Retrieves all Accessories from Database. If a Game is provided, all accessories of this
      * specific game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
-     *
      * @return List containing all Accessory Objects retrieved from Database.
      */
-    public ArrayList<Accessory> getAllAccessories(@Nullable final Game game,
+    public Cursor getAllAccessories(final String[] projection,
-                                                  final boolean onlyAvailable) {
+                                    final String selection,
+                                    final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllAccessories: Creating Cursor for Accessories.");
-        final String[] selectionArgs;
-        if (game != null && onlyAvailable) {
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-
         final Cursor cursor = database.query(Constants.TABLE_ACCESSORY,
-                Constants.PROJECTION_ACCESSORY, selectionClause, selectionArgs, null, null, null,
+                projection, selection, selectionArgs, null, null, null,
                 null);
-
+        return cursor;
-        final ArrayList<Accessory> allAvailableAccessories = new ArrayList<>();
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-            final Accessory accessory = new Accessory();
-            boolean isValid = true;
-            if (idIdx >= 0) {
-                accessory.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllAccessories: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                accessory.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllAccessories: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                accessory.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllAccessories: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (availableIdx < 0) {
-                accessory.setAvailable(cursor.getInt(availableIdx));
-            } else {
-                Log.d(TAG, "getAllAccessories: No such column [" + Constants.KEY_AVAILABLE + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableAccessories.add(accessory);
-            } else {
-                Log.d(TAG, "getAllAccessories: Do not add Accessory as one or more arguments " +
-                        "are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableAccessories;
     }
 
     /**
      * Retrieves all Wheels from Database. If a Game is provided, all wheels of this specific
      * game will be retrieved.
      *
-     * @param game The game of which all tracks should be retrieved.
-     * @param onlyAvailable If true, only available objects will be returned, otherwise all
-     *
      * @return List containing all Wheels Objects retrieved from Database.
      */
-    public ArrayList<Wheels> getAllWheels(@Nullable final Game game,
+    public Cursor getAllWheels(final String[] projection,
-                                          final boolean onlyAvailable) {
+                               final String selection,
+                               final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final String selectionClause;
+        Log.d(TAG, "getAllWheels: Creating Cursor for Wheels.");
-        final String[] selectionArgs;
+        final Cursor cursor = database.query(Constants.TABLE_WHEELS, projection, selection,
-        if (game != null && onlyAvailable) {
+                selectionArgs, null, null, null, null);
-            selectionClause = Constants.KEY_GAME + "=? AND " + Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{game.getName(), String.valueOf(Constants.TRUE)};
-        } else if (game != null) {
-            selectionClause = Constants.KEY_GAME + "=?";
-            selectionArgs = new String[]{game.getName()};
-        } else if (onlyAvailable) {
-            selectionClause = Constants.KEY_AVAILABLE + "=?";
-            selectionArgs = new String[]{String.valueOf(Constants.TRUE)};
-        } else {
-            selectionClause = null;
-            selectionArgs = null;
-        }
-
-        final Cursor cursor = database.query(Constants.TABLE_WHEELS, Constants.PROJECTION_WHEELS,
-                selectionClause, selectionArgs, null, null, null, null);
-        if (cursor != null) {
-            Log.d(TAG, "getAllWheels: Moving cursor to first.");
-            cursor.moveToFirst();
-        } else {
-            Log.d(TAG, "getAllWheels: cursor is null");
-            return null;
-        }
-
-        final ArrayList<Wheels> allAvailableWheels = new ArrayList<>();
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-            final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-            final Wheels wheels = new Wheels();
-            boolean isValid = true;
-            if (idIdx >= 0) {
-                wheels.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllWheels: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                wheels.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllWheels: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (gameIdx >= 0) {
-                wheels.setGame(cursor.getString(gameIdx));
-            } else {
-                Log.d(TAG, "getAllWheels: No such column [" + Constants.KEY_GAME + "]");
-                isValid = false;
-            }
-
-            if (availableIdx < 0) {
-                wheels.setAvailable(cursor.getInt(availableIdx));
-            } else {
-                Log.d(TAG, "getAllWheels: No such column [" + Constants.KEY_AVAILABLE + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableWheels.add(wheels);
-            } else {
-                Log.d(TAG, "getAllWheels: Do not add Wheels as one or more arguments are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
 
         // return contact
-        return allAvailableWheels;
+        return cursor;
     }
 
     /**
@@ -830,121 +245,20 @@ public class DatabaseHandler extends SQLiteAssetHelper {
      *
      * @return List containing all Game Objects retrieved from Database.
      */
-    public ArrayList<Game> getAllGames() {
+    public Cursor getAllGames(final String[] projection,
+                              final String selection,
+                              final String[] selectionArgs) {
         final SQLiteDatabase database = this.getReadableDatabase();
 
-        final Cursor cursor = database.query(Constants.TABLE_GAME, Constants.PROJECTION_GAME, null,
+        Log.d(TAG, "getAllGames: Greating Cursor for Games.");
-                null, null, null, null, null);
+        final Cursor cursor = database.query(Constants.TABLE_GAME, projection, selection,
-        if (cursor != null) {
+                selectionArgs, null, null, null, null);
-            Log.d(TAG, "getAllGames: Moving cursor to first.");
-            cursor.moveToFirst();
-        } else {
-            Log.d(TAG, "getAllGames: cursor is null");
-            return null;
-        }
 
-        final ArrayList<Game> allAvailableGames = new ArrayList<>();
+        return cursor;
-
-        do {
-            final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-            final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-            final int coverUriIdx = cursor.getColumnIndex(Constants.KEY_COVER_URI);
-
-            final Game game = new Game();
-            boolean isValid = true;
-            if (idIdx >= 0) {
-                game.setId(cursor.getInt(idIdx));
-            } else {
-                Log.d(TAG, "getAllGames: No such column [" + Constants.KEY_ID + "]");
-                isValid = false;
-            }
-
-            if (nameIdx >= 0) {
-                game.setName(cursor.getString(nameIdx));
-            } else {
-                Log.d(TAG, "getAllGames: No such column [" + Constants.KEY_NAME + "]");
-                isValid = false;
-            }
-
-            if (coverUriIdx >= 0) {
-                game.setCoverUri(cursor.getString(coverUriIdx));
-            } else {
-                Log.d(TAG, "getAllGames: No such column [" + Constants.KEY_COVER_URI + "]");
-                isValid = false;
-            }
-
-            if (isValid) {
-                allAvailableGames.add(game);
-            } else {
-                Log.d(TAG, "getAllGames: Do not add Game as one or more arguments are invalid.");
-            }
-
-        } while (cursor.moveToNext());
-
-        cursor.close();
-        database.close();
-
-        // return contact
-        return allAvailableGames;
     }
 
     // -------------------------------------------------------------------------------------------
     // ------------------------------ T E S T   F U N C T I O N S  -------------------------------
     // -------------------------------------------------------------------------------------------
 
-    // TODO: This is only an intermediate state and can be removed later on
-    public Track testDBConnection(final int id) {
-        Log.d(TAG, "testDBConnection: Opening Readable Database.");
-        final SQLiteDatabase database = this.getReadableDatabase();
-
-        Log.d(TAG, "testDBConnection: Query a single track for id = [" + id + "]");
-        final Cursor cursor = database.query(Constants.TABLE_TRACK, new String[]{Constants.KEY_ID,
-                        Constants.KEY_NAME, Constants.KEY_GAME, Constants.KEY_AVAILABLE},
-                Constants.KEY_ID + "=?", new String[]{String.valueOf(id)}, null, null, null, null);
-        if (cursor != null) {
-            Log.d(TAG, "testDBConnection: Moving cursor to first.");
-            cursor.moveToFirst();
-        } else {
-            Log.d(TAG, "testDBConnection: cursor is null");
-            return null;
-        }
-
-        DatabaseUtils.dumpCursor(cursor);
-
-        final int nameIdx = cursor.getColumnIndex(Constants.KEY_NAME);
-        final int gameIdx = cursor.getColumnIndex(Constants.KEY_GAME);
-        final int idIdx = cursor.getColumnIndex(Constants.KEY_ID);
-        final int availableIdx = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
-
-        if (nameIdx < 0) {
-            Log.d(TAG, "testDBConnection: No such column [" + Constants.KEY_NAME + "]");
-        }
-        if (gameIdx < 0) {
-            Log.d(TAG, "testDBConnection: No such column [" + Constants.KEY_GAME + "]");
-        }
-        if (idIdx < 0) {
-            Log.d(TAG, "testDBConnection: No such column [" + Constants.KEY_ID + "]");
-        }
-        if (availableIdx < 0) {
-            Log.d(TAG, "testDBConnection: No such column [" + Constants.KEY_AVAILABLE + "]");
-        }
-
-        if (availableIdx >= 0 && idIdx >= 0 && gameIdx >= 0 && nameIdx >= 0) {
-            final Track track = new Track();
-            track.setName(cursor.getString(nameIdx));
-            track.setGame(cursor.getString(gameIdx));
-            track.setId(Integer.parseInt(cursor.getString(idIdx)));
-            track.setAvailable(Integer.parseInt(cursor.getString(availableIdx)));
-            database.close();
-
-            // return contact
-            return track;
-
-        }
-        cursor.close();
-        database.close();
-
-        // return contact
-        return null;
-    }
 }

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/GameContentProvider.java

@@ -0,0 +1,151 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * Created by aldo7224 on 18.08.17.
+ */
+
+public class GameContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "GameProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/games");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/GameSelection.java

@@ -1,41 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector;
-
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-import android.widget.EditText;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Track;
-
-public class GameSelection extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(final Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_game_selection);
-
-        final DatabaseHandler handler = new DatabaseHandler(this);
-
-        final EditText editText = (EditText) findViewById(R.id.id_input);
-
-        final Button button = (Button) findViewById(R.id.ok_button);
-
-        final TextView result = (TextView) findViewById(R.id.result_field);
-
-        button.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                final int id = Integer.parseInt(editText.getText().toString());
-                final Track track = handler.testDBConnection(id);
-                if (track != null) {
-                    final String resultStr = track.getGame() + " - " + track.getName()
-                            + " - Available = " + track.getAvailable();
-                    result.setText(resultStr);
-                }
-            }
-        });
-
-    }
-}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/KartContentProvider.java

@@ -0,0 +1,154 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * The ContentProvider which retrieves the Kart Data.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class KartContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "KartProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/karts");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/PagerType.java

@@ -0,0 +1,35 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+/**
+ * Enum holding the different PagerTypes which are displayed in the NavigationTabBar.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public enum PagerType {
+    /**
+     * Character tab.
+     */
+    CHARACTER,
+
+    /**
+     * Kart tab.
+     */
+    KART,
+
+    /**
+     * Track tab.
+     */
+    TRACK,
+
+    /**
+     * Accessory tab.
+     */
+    ACCESSORY,
+
+    /**
+     * Wheels tab.
+     */
+    WHEEL
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/RulesetContentProvider.java

@@ -0,0 +1,151 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * Created by aldo7224 on 18.08.17.
+ */
+
+public class RulesetContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "RulesetProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/ruleset");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/TrackContentProvider.java

@@ -0,0 +1,154 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * The ContentProvider which retrieves the Track Data.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class TrackContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "TrackProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on cust_master table. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/tracks");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/WheelsContentProvider.java

@@ -0,0 +1,154 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector;
+
+import android.content.ContentProvider;
+import android.content.ContentValues;
+import android.content.UriMatcher;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.annotation.NonNull;
+import android.util.Log;
+
+/**
+ * The ContentProvider which retrieves the Wheels Data.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class WheelsContentProvider extends ContentProvider {
+
+    /**
+     * Tag for debugging output.
+     */
+    private static final String TAG = "WheelsProvider";
+
+    /**
+     * The Provider Name to find the correct Provider and register it in the Android Lifecycle.
+     */
+    public static final String PROVIDER_NAME
+            = "com.de.aldo_apps.aldo.mariokartcircuitselector";
+
+    /**
+     * A uri to do operations on cust_master table. A content provider is identified by its uri
+     */
+    public static final Uri CONTENT_URI = Uri.parse("content://" + PROVIDER_NAME + "/wheels");
+
+    /**
+     * UriMatcher to check which callback needs to be handled.
+     * TODO: Check whether this is really needed.
+     */
+    private static final UriMatcher uriMatcher;
+
+    static {
+        uriMatcher = new UriMatcher(UriMatcher.NO_MATCH);
+        uriMatcher.addURI(PROVIDER_NAME, "games", Constants.GAME_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "ruleset", Constants.RULESET_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "characters", Constants.CHARACTER_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "tracks", Constants.TRACK_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "karts", Constants.KART_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "wheels", Constants.WHEELS_LOADER_ID);
+        uriMatcher.addURI(PROVIDER_NAME, "accessories", Constants.ACCESSORY_LOADER_ID);
+    }
+
+    /**
+     * This content provider does the database operations by this object
+     */
+    DatabaseHandler mHandler;
+
+    /**
+     * A callback method which is invoked when the content provider is starting up
+     */
+    @Override
+    public boolean onCreate() {
+        mHandler = new DatabaseHandler(getContext());
+        return true;
+    }
+
+    @Override
+    public String getType(@NonNull final Uri uri) {
+        return null;
+    }
+
+    /**
+     * A callback method which is by the default content uri
+     */
+    @Override
+    public Cursor query(@NonNull final Uri uri,
+                        final String[] projection,
+                        final String selection,
+                        final String[] selectionArgs,
+                        final String sortOrder) {
+        Log.d(TAG, "query: Perform Query for [" + uri + "]");
+
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Getting all Characters.");
+                return mHandler.getAllCharacters(Constants.PROJECTION_CHARACTER,
+                        selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Getting all Karts.");
+                return mHandler.getAllKarts(Constants.PROJECTION_KART,
+                        selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Getting all Acessories.");
+                return mHandler.getAllAccessories(Constants.PROJECTION_ACCESSORY,
+                        selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Getting all Tracks.");
+                return mHandler.getAllTracks(Constants.PROJECTION_TRACK,
+                        selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Getting all Wheels.");
+                return mHandler.getAllWheels(Constants.PROJECTION_WHEELS,
+                        selection, selectionArgs);
+            case Constants.GAME_LOADER_ID:
+                Log.d(TAG, "query: Getting all Games.");
+                return mHandler.getAllGames(Constants.PROJECTION_GAME, null, null);
+            case Constants.RULESET_LOADER_ID:
+                Log.d(TAG, "query: Getting all Rulesets.");
+                return mHandler.getAllRulesets(Constants.PROJECTION_RULESET, null, null);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return null;
+        }
+    }
+
+    @Override
+    public int delete(@NonNull final Uri uri, final String selection, final String[] selectionArgs) {
+        return 0;
+    }
+
+    @Override
+    public Uri insert(@NonNull final Uri uri, final ContentValues values) {
+        return null;
+    }
+
+    @Override
+    public int update(@NonNull final Uri uri, final ContentValues values, final String selection,
+                      final String[] selectionArgs) {
+        final int resId = uriMatcher.match(uri);
+
+        switch (resId) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "query: Toggling Characters availability.");
+                return mHandler.changeCharacterAvailability(values, selection, selectionArgs);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "query: Toggling Karts availability.");
+                return mHandler.changeKartAvailability(values, selection, selectionArgs);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "query: Toggling Accessories availability.");
+                return mHandler.changeAccessoryAvailability(values, selection, selectionArgs);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "query: Toggling Tracks availability.");
+                return mHandler.changeTrackAvailability(values, selection, selectionArgs);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "query: Toggling Wheels availability.");
+                return mHandler.changeWheelsAvailability(values, selection, selectionArgs);
+            default:
+                Log.d(TAG, "query: UriMatcher returned: " + uriMatcher.match(uri));
+                return 0;
+        }
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/activities/GameSelectionActivity.java

@@ -0,0 +1,64 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.activities;
+
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v7.widget.Toolbar;
+import android.util.Log;
+import android.widget.ListView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.GameContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.GameCursorAdapter;
+
+public class GameSelectionActivity extends AppCompatActivity
+        implements LoaderManager.LoaderCallbacks<Cursor> {
+
+    private static final String TAG = "GameSelectionActivity";
+
+    private ListView mListView;
+
+    private SimpleCursorAdapter mCursorAdapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_game_selection);
+        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
+        setSupportActionBar(toolbar);
+
+        mListView = (ListView) findViewById(R.id.all_games_list);
+
+        mCursorAdapter = new GameCursorAdapter(this, R.layout.game_list_item,
+                null, Constants.PROJECTION_GAME, new int[] {}, 0);
+
+        mListView.setAdapter(mCursorAdapter);
+
+        getSupportLoaderManager().initLoader(Constants.GAME_LOADER_ID, null, this);
+    }
+
+    @Override
+    public CursorLoader onCreateLoader(int id, Bundle args) {
+        return new CursorLoader(GameSelectionActivity.this,
+                GameContentProvider.CONTENT_URI,
+                Constants.PROJECTION_GAME, null, null, null);
+    }
+
+    @Override
+    public void onLoadFinished(Loader loader, Cursor cursor) {
+
+        Log.d(TAG, "onLoadFinished: Finished Loading for " + loader.getId());
+        // Swapping the cursor makes the Data visible in the corresponding ListView.
+        mCursorAdapter.swapCursor(cursor);
+    }
+
+    @Override
+    public void onLoaderReset(final Loader loader) {
+        mCursorAdapter.swapCursor(null);
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/activities/GameSettingsActivity.java

@@ -0,0 +1,166 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.activities;
+
+import android.graphics.Color;
+import android.os.Bundle;
+import android.support.v4.content.res.ResourcesCompat;
+import android.support.v4.view.ViewPager;
+import android.support.v7.app.AppCompatActivity;
+import android.util.Log;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.CursorPagerAdapter;
+
+import java.util.ArrayList;
+
+import devlight.io.library.ntb.NavigationTabBar;
+
+/**
+ * The Activity which handles the Main-Game Selection.
+ * TODO: Currently the DB-Logic is here, which needs to be handled in an additional screen.
+ *
+ * @author aldo7224
+ * @version 0.2
+ * @since 17.08.2017
+ */
+public class GameSettingsActivity extends AppCompatActivity {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "GameSettingsActivity";
+
+    /**
+     * The Custom CursorPagerAdapter which fills the ViewPager with data.
+     */
+    private CursorPagerAdapter mAdapter;
+
+    @Override
+    protected void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_game_settings);
+
+        final String gameSelected = getIntent().getStringExtra(Constants.KEY_GAME);
+
+        // Initialize the Adapter.
+        mAdapter = new CursorPagerAdapter(getSupportFragmentManager(), gameSelected);
+        // Fill the UI.
+        updateUI();
+    }
+
+    /**
+     * Helper method which handles UI updates.
+     */
+    public void updateUI() {
+        // Get the colors for the ViewPager Items.
+        final String[] colors = getResources().getStringArray(R.array.vertical_ntb);
+
+        // get the ViewPager and assign adapter to it.
+        final ViewPager viewPager = (ViewPager) findViewById(R.id.vp_horizontal_ntb);
+        viewPager.setAdapter(mAdapter);
+
+        // Get the NavigationBar and assign the models to it.
+        initNavBar(colors, viewPager);
+
+    }
+
+    /**
+     * Helper method which initializes the NavigationTabBar and adds functionality.
+     *
+     * @param colors    The Array of colors to apply to the different Tabs.
+     * @param viewPager The ViewPager which should be assigned to the tabBar.
+     * @return The fully inflated and initialized NavigationTabbar.
+     */
+    private NavigationTabBar initNavBar(final String[] colors, final ViewPager viewPager) {
+        final NavigationTabBar navigationTabBar
+                = (NavigationTabBar) findViewById(R.id.ntb_vertical);
+        final ArrayList<NavigationTabBar.Model> models = new ArrayList<>();
+        models.add(
+                new NavigationTabBar.Model.Builder(
+                        ResourcesCompat.getDrawable(getResources(),
+                                R.drawable.character_50_dark_grey, null),
+                        Color.parseColor(colors[0])
+                ).title(getString(R.string.title_character))
+                        .badgeTitle("NTB")
+                        .build()
+        );
+        models.add(
+                new NavigationTabBar.Model.Builder(
+                        ResourcesCompat.getDrawable(getResources(),
+                                R.drawable.kart_50_dark_grey, null),
+                        Color.parseColor(colors[1])
+                ).title(getString(R.string.title_kart))
+                        .badgeTitle("with")
+                        .build()
+        );
+        models.add(
+                new NavigationTabBar.Model.Builder(
+                        ResourcesCompat.getDrawable(getResources(),
+                                R.drawable.track_50_dark_grey, null),
+                        Color.parseColor(colors[2])
+                ).title(getString(R.string.title_track))
+                        .badgeTitle("state")
+                        .build()
+        );
+        models.add(
+                new NavigationTabBar.Model.Builder(
+                        ResourcesCompat.getDrawable(getResources(),
+                                R.drawable.accessory_50_dark_grey, null),
+                        Color.parseColor(colors[3])
+                ).title(getString(R.string.title_accessory))
+                        .badgeTitle("icon")
+                        .build()
+        );
+        models.add(
+                new NavigationTabBar.Model.Builder(
+                        ResourcesCompat.getDrawable(getResources(),
+                                R.drawable.wheels_50_dark_grey, null),
+                        Color.parseColor(colors[4])
+                ).title(getString(R.string.title_wheels))
+                        .badgeTitle("777")
+                        .build()
+        );
+        navigationTabBar.setModels(models);
+        navigationTabBar.setViewPager(viewPager);
+
+        // Assign a OnPageChangedListener to assure correct functionality while swiping.
+        navigationTabBar.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
+            @Override
+            public void onPageScrolled(final int position,
+                                       final float positionOffset,
+                                       final int positionOffsetPixels) {
+
+            }
+
+            @Override
+            public void onPageSelected(final int position) {
+                Log.d(TAG, "onPageSelected: Selected Tab on Position [" + position
+                        + "] with Title [" + navigationTabBar.getModels().get(position).getTitle()
+                        + "]");
+                navigationTabBar.getModels().get(position).hideBadge();
+            }
+
+            @Override
+            public void onPageScrollStateChanged(final int state) {
+
+            }
+        });
+
+        navigationTabBar.postDelayed(new Runnable() {
+            @Override
+            public void run() {
+                for (int i = 0; i < navigationTabBar.getModels().size(); i++) {
+                    final NavigationTabBar.Model model = navigationTabBar.getModels().get(i);
+                    navigationTabBar.postDelayed(new Runnable() {
+                        @Override
+                        public void run() {
+                            model.showBadge();
+                        }
+                    }, i * 100);
+                }
+            }
+        }, 500);
+
+        return navigationTabBar;
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/AccessoryCursorAdapter.java

@@ -0,0 +1,166 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.AccessoryContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.squareup.picasso.Picasso;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+/**
+ * Custom CursorAdapter which populates the ListView with accessory data from cursor.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class AccessoryCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "AccessoryAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public AccessoryCursorAdapter(final Context context,
+                                   final int layout,
+                                   final Cursor cursor,
+                                   final String[] from,
+                                   final int[] to,
+                                   final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+        final int idxAvailable = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
+
+        if (idxId > -1 && idxName > -1 && idxAvailable > -1) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+            final boolean available = cursor.getInt(idxAvailable) == Constants.TRUE;
+
+            fillViewWithData(view, id, name, coverUri, available);
+        }
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view        The view to be filled.
+     * @param id          Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name        Name of the accessory to be displayed.
+     * @param available   Current AvailabilityState of the accessory.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String imageUri,
+                                  final boolean available) {
+        final CheckBox availabilityCheckBox
+                = (CheckBox) view.findViewById(R.id.availability_checkbox);
+        availabilityCheckBox.setChecked(available);
+
+        final TextView idTextView = (TextView) view.findViewById(R.id.database_id_view);
+        idTextView.setText(String.valueOf(id));
+
+        final View multipleContainer = view.findViewById(R.id.multiple_information_container);
+        multipleContainer.setVisibility(View.GONE);
+
+        final TextView nameTextView = (TextView) view.findViewById(R.id.single_info_name);
+        nameTextView.setText(name);
+        nameTextView.setVisibility(View.VISIBLE);
+
+//        // Uncomment this if CoverUris are present for accessories and are allowed to be shown.
+//        final CircleImageView imageView = (CircleImageView) view.findViewById(R.id.image_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+        availabilityCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean isAvailable) {
+                final ContentValues values = new ContentValues();
+                Log.d(TAG, "onCheckedChanged: Toggling Availability of [" + name
+                        + "] to available = [" + isAvailable + "]");
+                if (isAvailable) {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
+                } else {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.FALSE));
+                }
+                mContext.getContentResolver().update(AccessoryContentProvider.CONTENT_URI, values,
+                        Constants.KEY_ID + " = ?", new String[]{String.valueOf(id)});
+            }
+        });
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                availabilityCheckBox.toggle();
+            }
+        });
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/CharacterCursorAdapter.java

@@ -0,0 +1,177 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+import android.net.Uri;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.CharacterContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.squareup.picasso.Callback;
+import com.squareup.picasso.Picasso;
+import com.squareup.picasso.Target;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+/**
+ * Custom CursorAdapter which populates the ListView with character data from cursor.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class CharacterCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "CharacterAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public CharacterCursorAdapter(final Context context,
+                                  final int layout,
+                                  final Cursor cursor,
+                                  final String[] from,
+                                  final int[] to,
+                                  final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxWeight = cursor.getColumnIndex(Constants.KEY_WEIGHT);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+        final int idxAvailable = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
+
+        if (idxId > -1 && idxName > -1  && idxWeight > -1 && idxAvailable > -1) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            final String weight = cursor.getString(idxWeight);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+            final boolean available = cursor.getInt(idxAvailable) == Constants.TRUE;
+
+            fillViewWithData(view, id, name, weight, coverUri, available);
+        }
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view      The view to be filled.
+     * @param id        Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name      Name of the character to be displayed.
+     * @param weight    Weight of the character to be displayed.
+     * @param available Current AvailabilityState of the character.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String weight,
+                                  final String imageUri,
+                                  final boolean available) {
+        final CheckBox availabilityCheckBox
+                = (CheckBox) view.findViewById(R.id.availability_checkbox);
+        availabilityCheckBox.setChecked(available);
+
+        final TextView idTextView = (TextView) view.findViewById(R.id.database_id_view);
+        idTextView.setText(String.valueOf(id));
+
+        final TextView nameTextView = (TextView) view.findViewById(R.id.multi_view_name);
+        nameTextView.setText(name);
+
+        final TextView weightTextView = (TextView) view.findViewById(R.id.additional_info_first);
+        weightTextView.setText(weight);
+
+        final TextView separator
+                = (TextView) view.findViewById(R.id.additional_information_separator);
+        separator.setVisibility(View.GONE);
+
+//        // Uncomment this if CoverUris are present for characters and are allowed to be shown.
+//        final CircleImageView imageView = (CircleImageView) view.findViewById(R.id.image_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+        availabilityCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean isAvailable) {
+                final ContentValues values = new ContentValues();
+                Log.d(TAG, "onCheckedChanged: Toggling Availability of [" + name
+                        + "] to available = [" + isAvailable + "]");
+                if (isAvailable) {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
+                } else {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.FALSE));
+                }
+                mContext.getContentResolver().update(CharacterContentProvider.CONTENT_URI, values,
+                        Constants.KEY_ID + " = ?", new String[]{String.valueOf(id)});
+            }
+        });
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                availabilityCheckBox.toggle();
+            }
+        });
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/CursorPagerAdapter.java

@@ -0,0 +1,90 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.FragmentPagerAdapter;
+import android.util.Log;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.PagerType;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.fragments.GenericListFragment;
+
+import java.util.Arrays;
+
+/**
+ * The custom FragmentPagerAdapter which handles data provided via a cursor so the data retrieved
+ * from DB can be directly accessed and displayed.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class CursorPagerAdapter extends FragmentPagerAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "CursorPagerAdapter";
+
+    private String mGame;
+
+    /**
+     * Default constructor.
+     */
+    public CursorPagerAdapter(final FragmentManager fm, final String game) {
+        super(fm);
+        mGame = game;
+    }
+
+    @Override
+    public Fragment getItem(final int position) {
+        final Bundle bundle = new Bundle();
+        final String[] projection;
+        final int loaderId;
+        // Get the PagerType of the position, so that the correct Loader is initialized.
+        switch (PagerType.values()[position]) {
+            case CHARACTER:
+                projection = Constants.PROJECTION_CHARACTER;
+                loaderId = Constants.CHARACTER_LOADER_ID;
+                break;
+            case KART:
+                projection = Constants.PROJECTION_KART;
+                loaderId = Constants.KART_LOADER_ID;
+                break;
+            case WHEEL:
+                projection = Constants.PROJECTION_WHEELS;
+                loaderId = Constants.WHEELS_LOADER_ID;
+                break;
+            case ACCESSORY:
+                projection = Constants.PROJECTION_ACCESSORY;
+                loaderId = Constants.ACCESSORY_LOADER_ID;
+                break;
+            case TRACK:
+                projection = Constants.PROJECTION_TRACK;
+                loaderId = Constants.TRACK_LOADER_ID;
+                break;
+            default:
+                projection = null;
+                loaderId = Constants.BASE_LOADER_ID;
+        }
+
+        // Provide Projection and LoaderId via a Bundle.
+        bundle.putStringArray(Constants.PROJECTION_KEY, projection);
+        bundle.putInt(Constants.LOADER_ID_KEY, loaderId);
+        bundle.putString(Constants.KEY_GAME, mGame);
+
+        Log.d(TAG, "getItem: New GenericListFragment with loaderId = [" + loaderId
+                + "] and projection = [" + Arrays.toString(projection) + "] on position ["
+                + position + "]");
+        final GenericListFragment genericListFragment = new GenericListFragment();
+        genericListFragment.setArguments(bundle);
+
+        return genericListFragment;
+    }
+
+    @Override
+    public int getCount() {
+        return PagerType.values().length;
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/GameCursorAdapter.java

@@ -0,0 +1,133 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.activities.GameSettingsActivity;
+
+/**
+ * Created by aldo7224 on 18.08.17.
+ */
+
+public class GameCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "GameAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private final Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public GameCursorAdapter(final Context context,
+                             final int layout,
+                             final Cursor cursor,
+                             final String[] from,
+                             final int[] to,
+                             final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+
+        if (idxId > -1 && idxName > -1 ) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+
+            fillViewWithData(view, id, name, coverUri);
+        }
+
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view        The view to be filled.
+     * @param id          Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name        Name of the accessory to be displayed.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String imageUri) {
+
+        final TextView idView = (TextView) view.findViewById(R.id.id_view);
+        idView.setText(String.valueOf(id));
+
+        final TextView nameView = (TextView) view.findViewById(R.id.game_name_view);
+        nameView.setText(name);
+
+//        // Uncomment this if CoverUris are present for games and are allowed to be shown.
+//        final ImageView imageView = (ImageView) view.findViewById(R.id.cover_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                final Intent intent = new Intent(mContext, GameSettingsActivity.class);
+                intent.putExtra(Constants.KEY_GAME, name);
+                mContext.startActivity(intent);
+            }
+        });
+
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/KartCursorAdapter.java

@@ -0,0 +1,179 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.KartContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.squareup.picasso.Picasso;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+/**
+ * Custom CursorAdapter which populates the ListView with kart data from cursor.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class KartCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "KartAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public KartCursorAdapter(final Context context,
+                             final int layout,
+                             final Cursor cursor,
+                             final String[] from,
+                             final int[] to,
+                             final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxWeight = cursor.getColumnIndex(Constants.KEY_WEIGHT);
+        final int idxDedicatedDriver = cursor.getColumnIndex(Constants.KEY_DEDICATED_DRIVER);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+        final int idxAvailable = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
+
+        if (idxId > -1 && idxName > -1 && idxDedicatedDriver > -1 && idxWeight > -1
+                && idxAvailable > -1) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            final String weight = cursor.getString(idxDedicatedDriver);
+            final String dedicatedDriver = cursor.getString(idxWeight);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+            final boolean available = cursor.getInt(idxAvailable) == Constants.TRUE;
+
+            fillViewWithData(view, id, name, weight, dedicatedDriver, coverUri, available);
+        }
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view            The view to be filled.
+     * @param id              Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name            Name of the kart to be displayed.
+     * @param weight          Weight of the kart to be displayed.
+     * @param dedicatedDriver The dedicated Driver of this Kart..
+     * @param available       Current AvailabilityState of the kart.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String weight,
+                                  final String dedicatedDriver,
+                                  final String imageUri,
+                                  final boolean available) {
+        final CheckBox availabilityCheckBox
+                = (CheckBox) view.findViewById(R.id.availability_checkbox);
+        availabilityCheckBox.setChecked(available);
+
+        final TextView idTextView = (TextView) view.findViewById(R.id.database_id_view);
+        idTextView.setText(String.valueOf(id));
+
+        final TextView nameTextView = (TextView) view.findViewById(R.id.multi_view_name);
+        nameTextView.setText(name);
+
+        final TextView weightTextView = (TextView) view.findViewById(R.id.additional_info_first);
+        weightTextView.setText(weight);
+
+        final TextView dedicatedDriverTextView
+                = (TextView) view.findViewById(R.id.additional_info_second);
+        dedicatedDriverTextView.setText(dedicatedDriver);
+
+//        // Uncomment this if CoverUris are present for karts and are allowed to be shown.
+//        final CircleImageView imageView = (CircleImageView) view.findViewById(R.id.image_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+
+        availabilityCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean isAvailable) {
+                final ContentValues values = new ContentValues();
+                Log.d(TAG, "onCheckedChanged: Toggling Availability of [" + name
+                        + "] to available = [" + isAvailable + "]");
+                if (isAvailable) {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
+                } else {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.FALSE));
+                }
+                mContext.getContentResolver().update(KartContentProvider.CONTENT_URI, values,
+                        Constants.KEY_ID + " = ?", new String[]{String.valueOf(id)});
+            }
+        });
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                availabilityCheckBox.toggle();
+            }
+        });
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/TrackCursorAdapter.java

@@ -0,0 +1,178 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.graphics.Bitmap;
+import android.net.Uri;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.TrackContentProvider;
+import com.squareup.picasso.Picasso;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+/**
+ * Custom CursorAdapter which populates the ListView with track data from cursor.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class TrackCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "TrackAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public TrackCursorAdapter(final Context context,
+                              final int layout,
+                              final Cursor cursor,
+                              final String[] from,
+                              final int[] to,
+                              final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxPackage = cursor.getColumnIndex(Constants.KEY_PACKAGE);
+        final int idxNumber = cursor.getColumnIndex(Constants.KEY_NUMBER);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+        final int idxAvailable = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
+
+        if (idxId > -1 && idxName > -1 && idxNumber > -1 && idxPackage > -1 && idxAvailable > -1) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            final String number = cursor.getString(idxNumber);
+            final String packageName = cursor.getString(idxPackage);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+            final boolean available = cursor.getInt(idxAvailable) == Constants.TRUE;
+
+            fillViewWithData(view, id, name, packageName, number, coverUri, available);
+        }
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view        The view to be filled.
+     * @param id          Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name        Name of the track to be displayed.
+     * @param packageName Name of the package where this track is available to be displayed.
+     * @param number      Number of the track to be displayed.
+     * @param imageUri    The String (uri) pointing to the image location.
+     * @param available   Current AvailabilityState of the track.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String packageName,
+                                  final String number,
+                                  final String imageUri,
+                                  final boolean available) {
+        final CheckBox availabilityCheckBox
+                = (CheckBox) view.findViewById(R.id.availability_checkbox);
+        availabilityCheckBox.setChecked(available);
+
+        final TextView idTextView = (TextView) view.findViewById(R.id.database_id_view);
+        idTextView.setText(String.valueOf(id));
+
+        final TextView nameTextView = (TextView) view.findViewById(R.id.multi_view_name);
+        nameTextView.setText(name);
+
+        final TextView packageTextView = (TextView) view.findViewById(R.id.additional_info_first);
+        packageTextView.setText(packageName);
+
+        final TextView numberTextView = (TextView) view.findViewById(R.id.additional_info_second);
+        numberTextView.setText(number);
+
+//        // Uncomment this if CoverUris are present for tracks and are allowed to be shown.
+//        final CircleImageView imageView = (CircleImageView) view.findViewById(R.id.image_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+        availabilityCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean isAvailable) {
+                final ContentValues values = new ContentValues();
+                Log.d(TAG, "onCheckedChanged: Toggling Availability of [" + name
+                        + "] to available = [" + isAvailable + "]");
+                if (isAvailable) {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
+                } else {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.FALSE));
+                }
+                mContext.getContentResolver().update(TrackContentProvider.CONTENT_URI, values,
+                        Constants.KEY_ID + " = ?", new String[]{String.valueOf(id)});
+            }
+        });
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                availabilityCheckBox.toggle();
+            }
+        });
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/adapters/WheelsCursorAdapter.java

@@ -0,0 +1,167 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.adapters;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.CheckBox;
+import android.widget.CompoundButton;
+import android.widget.CompoundButton.OnCheckedChangeListener;
+import android.widget.TextView;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.WheelsContentProvider;
+import com.squareup.picasso.Picasso;
+
+import de.hdodenhof.circleimageview.CircleImageView;
+
+/**
+ * Custom CursorAdapter which populates the ListView with wheels data from cursor.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class WheelsCursorAdapter extends SimpleCursorAdapter {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "WheelsAdapter";
+
+    /**
+     * The Context where this adapter was assigned.
+     */
+    private Context mContext;
+
+    /**
+     * The LayoutInflater used to inflate a new ListItem.
+     */
+    private final LayoutInflater mInflater;
+
+    /**
+     * The LayoutId of the Layout to be inflated.
+     */
+    private final int mLayout;
+
+    /**
+     * Default constructor.
+     *
+     * @param context The Context from which this class was called.
+     * @param layout  The LayoutId to be inflated.
+     * @param cursor  The cursor which holds all the data.
+     * @param from    The Array Containing all Texts to be added to the view
+     *                (not used in custom adapter).
+     * @param to      The Array holding all LayoutIds where the texts need to be displayed
+     *                (not used in custom adapter).
+     * @param flags   Some flags (not used in custom adapter).
+     */
+    public WheelsCursorAdapter(final Context context,
+                                  final int layout,
+                                  final Cursor cursor,
+                                  final String[] from,
+                                  final int[] to,
+                                  final int flags) {
+        super(context, layout, cursor, from, to, flags);
+        mContext = context;
+        mLayout = layout;
+        mInflater = LayoutInflater.from(context);
+    }
+
+    @Override
+    public View newView(final Context context, final Cursor cursor, final ViewGroup parent) {
+        return mInflater.inflate(mLayout, null);
+    }
+
+    @Override
+    public void bindView(final View view, final Context context, final Cursor cursor) {
+        super.bindView(view, context, cursor);
+
+        final int idxId = cursor.getColumnIndex(Constants.KEY_ID);
+        final int idxName = cursor.getColumnIndex(Constants.KEY_NAME);
+        final int idxCoverUri = cursor.getColumnIndex(Constants.KEY_COVER_URI);
+        final int idxAvailable = cursor.getColumnIndex(Constants.KEY_AVAILABLE);
+
+        if (idxId > -1 && idxName > -1 && idxAvailable > -1) {
+            final long id = cursor.getLong(idxId);
+            final String name = cursor.getString(idxName);
+            String coverUri = null;
+            if (idxCoverUri > -1)  {
+                coverUri = cursor.getString(idxCoverUri);
+            }
+            final boolean available = cursor.getInt(idxAvailable) == Constants.TRUE;
+
+            fillViewWithData(view, id, name, coverUri, available);
+        }
+    }
+
+    /**
+     * Helper method to fill the UI-Element with information from retrieved from cursor.
+     *
+     * @param view        The view to be filled.
+     * @param id          Id to be displayed as a backup into TextView (TextView is INVISIBLE)
+     * @param name        Name of the wheels to be displayed.
+     * @param available   Current AvailabilityState of the wheels.
+     */
+    private void fillViewWithData(final View view,
+                                  final long id,
+                                  final String name,
+                                  final String imageUri,
+                                  final boolean available) {
+        final CheckBox availabilityCheckBox
+                = (CheckBox) view.findViewById(R.id.availability_checkbox);
+        availabilityCheckBox.setChecked(available);
+
+        final TextView idTextView = (TextView) view.findViewById(R.id.database_id_view);
+        idTextView.setText(String.valueOf(id));
+
+        final View multipleContainer = view.findViewById(R.id.multiple_information_container);
+        multipleContainer.setVisibility(View.GONE);
+
+        final TextView nameTextView = (TextView) view.findViewById(R.id.single_info_name);
+        nameTextView.setText(name);
+        nameTextView.setVisibility(View.VISIBLE);
+
+//        // Uncomment this if CoverUris are present for wheels and are allowed to be shown.
+//        final CircleImageView imageView = (CircleImageView) view.findViewById(R.id.image_view);
+//        if (imageUri != null && !imageUri.isEmpty()) {
+//            Log.d(TAG, "fillViewWithData: Loading Image for [" + imageUri + "]");
+//            Picasso.with(mContext).load(imageUri).error(R.drawable.unknown_character)
+//                    .placeholder(R.drawable.animation_progress).into(imageView);
+//            imageView.setVisibility(View.VISIBLE);
+//        } else {
+//            Log.d(TAG, "fillViewWithData: No image uri provided. ImageView will not be visible.");
+//            imageView.setVisibility(View.GONE);
+//        }
+
+
+        availabilityCheckBox.setOnCheckedChangeListener(new OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean isAvailable) {
+                final ContentValues values = new ContentValues();
+                Log.d(TAG, "onCheckedChanged: Toggling Availability of [" + name
+                        + "] to available = [" + isAvailable + "]");
+                if (isAvailable) {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.TRUE));
+                } else {
+                    values.put(Constants.KEY_AVAILABLE, String.valueOf(Constants.FALSE));
+                }
+                mContext.getContentResolver().update(WheelsContentProvider.CONTENT_URI, values,
+                        Constants.KEY_ID + " = ?", new String[]{String.valueOf(id)});
+            }
+        });
+
+        view.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(final View view) {
+                availabilityCheckBox.toggle();
+            }
+        });
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/database_models/Character.java

@@ -46,7 +46,8 @@ public class Character {
     /**
      * Empty default constructor.
      */
-    public Character() {}
+    public Character() {
+    }
 
     /**
      * The constructor of this character object.

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/database_models/Kart.java

@@ -67,7 +67,8 @@ public class Kart {
     /**
      * Empty default constructor.
      */
-    public Kart() {}
+    public Kart() {
+    }
 
     /**
      * The constructor of this kart object.
@@ -187,7 +188,7 @@ public class Kart {
      *
      * @param wheels the availability state of wheels for this kart object.
      */
-    public void setWheels(int wheels) {
+    public void setWheels(final int wheels) {
         mWheels = wheels;
     }
 
@@ -205,7 +206,7 @@ public class Kart {
      *
      * @param accessory the availability state of accessory for this kart object.
      */
-    public void setAccessory(int accessory) {
+    public void setAccessory(final int accessory) {
         mAccessory = accessory;
     }
 
@@ -223,7 +224,7 @@ public class Kart {
      *
      * @param dedicatedDriver the dedicated driver for this kart.
      */
-    public void setDedicatedDriver(String dedicatedDriver) {
+    public void setDedicatedDriver(final String dedicatedDriver) {
         mDedicatedDriver = dedicatedDriver;
     }
 
@@ -242,7 +243,7 @@ public class Kart {
      * @param freeForAll the availability state of this kart for other characters than the
      *                   dedicated driver.
      */
-    public void setFreeForAll(int freeForAll) {
+    public void setFreeForAll(final int freeForAll) {
         mFreeForAll = freeForAll;
     }
 

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/database_models/Ruleset.java

@@ -64,20 +64,21 @@ public class Ruleset {
     /**
      * Empty default constructor.
      */
-    public Ruleset() {}
+    public Ruleset() {
+    }
 
     /**
      * The constructor of this ruleset object.
      *
-     * @param id        The database ID of this ruleset object.
+     * @param id                   The database ID of this ruleset object.
-     * @param game      The name of the game where this ruleset object is available.
+     * @param game                 The name of the game where this ruleset object is available.
      * @param mirrorClassAvailable The availability state of a mirror class.
-     * @param ccm50Available The availability state of a 50 ccm class.
+     * @param ccm50Available       The availability state of a 50 ccm class.
-     * @param ccm100Available The availability state of a 100 ccm class.
+     * @param ccm100Available      The availability state of a 100 ccm class.
-     * @param ccm150Available The availability state of a 150 ccm class.
+     * @param ccm150Available      The availability state of a 150 ccm class.
-     * @param ccm200Available The availability state of a 200 ccm class.
+     * @param ccm200Available      The availability state of a 200 ccm class.
-     * @param kartsFreeForAll The availability state of a karts for all characters by default.
+     * @param kartsFreeForAll      The availability state of a karts for all characters by default.
-     * @param bikesAvailable The availability state of a bikes.
+     * @param bikesAvailable       The availability state of a bikes.
      */
     public Ruleset(final int id, final String game, final int mirrorClassAvailable,
                    final int ccm50Available, final int ccm100Available, final int ccm150Available,
@@ -149,7 +150,7 @@ public class Ruleset {
      *
      * @param ccm50Available the availability of a 50 ccm class.
      */
-    public void set50CcmAvailable(int ccm50Available) {
+    public void set50CcmAvailable(final int ccm50Available) {
         m50CcmAvailable = ccm50Available;
     }
 
@@ -167,7 +168,7 @@ public class Ruleset {
      *
      * @param ccm100Available the availability of a 100 ccm class.
      */
-    public void set100CcmAvailable(int ccm100Available) {
+    public void set100CcmAvailable(final int ccm100Available) {
         m100CcmAvailable = ccm100Available;
     }
 
@@ -185,7 +186,7 @@ public class Ruleset {
      *
      * @param ccm150Available the availability of a 150 ccm class.
      */
-    public void set150CcmAvailable(int ccm150Available) {
+    public void set150CcmAvailable(final int ccm150Available) {
         m150CcmAvailable = ccm150Available;
     }
 
@@ -203,7 +204,7 @@ public class Ruleset {
      *
      * @param ccm200Available the availability of a 200 ccm class.
      */
-    public void set200CcmAvailable(int ccm200Available) {
+    public void set200CcmAvailable(final int ccm200Available) {
         m200CcmAvailable = ccm200Available;
     }
 
@@ -221,7 +222,7 @@ public class Ruleset {
      *
      * @param mirrorClassAvailable the availability of a mirror class.
      */
-    public void setMirrorClassAvailable(int mirrorClassAvailable) {
+    public void setMirrorClassAvailable(final int mirrorClassAvailable) {
         mMirrorClassAvailable = mirrorClassAvailable;
     }
 
@@ -239,7 +240,7 @@ public class Ruleset {
      *
      * @param kartsFreeForAll the availability of all karts for all characters.
      */
-    public void setKartsFreeForAll(int kartsFreeForAll) {
+    public void setKartsFreeForAll(final int kartsFreeForAll) {
         mKartsFreeForAll = kartsFreeForAll;
     }
 
@@ -257,7 +258,7 @@ public class Ruleset {
      *
      * @param bikesAvailable the availability of bikes.
      */
-    public void setBikesAvailable(int bikesAvailable) {
+    public void setBikesAvailable(final int bikesAvailable) {
         mBikesAvailable = bikesAvailable;
     }
 }

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/database_models/Track.java

@@ -51,7 +51,8 @@ public class Track {
     /**
      * Empty default constructor.
      */
-    public Track() {}
+    public Track() {
+    }
 
     /**
      * The constructor of this track object.
@@ -141,9 +142,10 @@ public class Track {
 
     /**
      * Sets the package name where this track is part of.
+     *
      * @param packageName the package name where this track is part of.
      */
-    public void setPackage(String packageName) {
+    public void setPackage(final String packageName) {
         mPackage = packageName;
     }
 
@@ -161,7 +163,7 @@ public class Track {
      *
      * @param number the number of the track within the package.
      */
-    public void setNumber(int number) {
+    public void setNumber(final int number) {
         mNumber = number;
     }
 

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/GenericListFragment.java

@@ -0,0 +1,164 @@
+package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
+
+import android.database.Cursor;
+import android.os.Bundle;
+import android.support.v4.app.ListFragment;
+import android.support.v4.app.LoaderManager;
+import android.support.v4.content.CursorLoader;
+import android.support.v4.content.Loader;
+import android.support.v4.widget.SimpleCursorAdapter;
+import android.util.Log;
+
+import com.de.aldo_apps.aldo.mariokartcircuitselector.AccessoryContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.CharacterContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.Constants;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.KartContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.TrackContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.WheelsContentProvider;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.AccessoryCursorAdapter;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.CharacterCursorAdapter;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.KartCursorAdapter;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.TrackCursorAdapter;
+import com.de.aldo_apps.aldo.mariokartcircuitselector.adapters.WheelsCursorAdapter;
+
+import java.util.Arrays;
+
+/**
+ * The ListFragment which is initialized in each PagerView and gets populated with data retrieved
+ * from database via cursor loader.
+ *
+ * @author aldo7224
+ * @version 0.1
+ * @since 17.08.2017
+ */
+public class GenericListFragment extends ListFragment
+        implements LoaderManager.LoaderCallbacks<Cursor> {
+
+    /**
+     * Tag for debugging purpose.
+     */
+    private static final String TAG = "GenericListFragment";
+
+    /**
+     * The SimpleCursorAdapter which populates the ListView.
+     */
+    private SimpleCursorAdapter mCursorAdapter;
+
+    private String mGame;
+
+    private String[] mSelectionArgs;
+
+    @Override
+    public void onCreate(final Bundle bundle) {
+        super.onCreate(bundle);
+
+        // Get Arguments from previous Class.
+        final Bundle arguments = getArguments();
+        if (arguments != null) {
+            // Get Projection and LoaderId from arguments.
+            final String[] projection = arguments.getStringArray(Constants.PROJECTION_KEY);
+            final int loaderId = arguments.getInt(Constants.LOADER_ID_KEY);
+            mGame = arguments.getString(Constants.KEY_GAME);
+            if (mGame != null) {
+                mSelectionArgs = new String[]{mGame};
+            }
+            final int[] to = new int[]{};
+            Log.d(TAG, "onCreate: New GenericListFragment with loaderId = [" + loaderId
+                    + "] and projection = [" + Arrays.toString(projection) + "]");
+
+            switch (loaderId) {
+                case Constants.CHARACTER_LOADER_ID:
+                    mCursorAdapter = new CharacterCursorAdapter(getContext(),
+                            R.layout.generic_list_item,
+                            null, projection, to, 0);
+                    break;
+                case Constants.KART_LOADER_ID:
+                    mCursorAdapter = new KartCursorAdapter(getContext(),
+                            R.layout.generic_list_item,
+                            null, projection, to, 0);
+                    break;
+                case Constants.TRACK_LOADER_ID:
+                    mCursorAdapter = new TrackCursorAdapter(getContext(),
+                            R.layout.generic_list_item,
+                            null, projection, to, 0);
+                    break;
+                case Constants.ACCESSORY_LOADER_ID:
+                    mCursorAdapter = new AccessoryCursorAdapter(getContext(),
+                            R.layout.generic_list_item,
+                            null, projection, to, 0);
+                    break;
+                case Constants.WHEELS_LOADER_ID:
+                    mCursorAdapter = new WheelsCursorAdapter(getContext(),
+                            R.layout.generic_list_item,
+                            null, projection, to, 0);
+                    break;
+                default:
+                    mCursorAdapter = new SimpleCursorAdapter(getContext(),
+                        android.R.layout.simple_list_item_1,
+                        null, projection, to, 0);
+                    break;
+
+            }
+
+            // Set the ListAdapter to the ListView.
+            setListAdapter(mCursorAdapter);
+
+            // initialize Loader for specified LoaderId.
+            getLoaderManager().initLoader(loaderId, null, this);
+        } else {
+            Log.d(TAG, "onCreate: No Arguments where provided. Skip Loader Creation.");
+        }
+    }
+
+    @Override
+    public CursorLoader onCreateLoader(final int id, final Bundle args) {
+        Log.d(TAG, "onCreateLoader: Creating Loader for ID [" + id + "]");
+        // Create CursorLoader for provided LoaderId.
+        switch (id) {
+            case Constants.CHARACTER_LOADER_ID:
+                Log.d(TAG, "onCreateLoader: Creating character loader");
+                return new CursorLoader(getContext(),
+                        CharacterContentProvider.CONTENT_URI,
+                        Constants.PROJECTION_CHARACTER,
+                        Constants.SELECT_WHERE_GAME, mSelectionArgs, null);
+            case Constants.KART_LOADER_ID:
+                Log.d(TAG, "onCreateLoader: Creating kart loader");
+                return new CursorLoader(getContext(),
+                        KartContentProvider.CONTENT_URI,
+                        Constants.PROJECTION_KART,
+                        Constants.SELECT_WHERE_GAME, mSelectionArgs, null);
+            case Constants.WHEELS_LOADER_ID:
+                Log.d(TAG, "onCreateLoader: Creating kart loader");
+                return new CursorLoader(getContext(),
+                        WheelsContentProvider.CONTENT_URI,
+                        Constants.PROJECTION_WHEELS,
+                        Constants.SELECT_WHERE_GAME, mSelectionArgs, null);
+            case Constants.ACCESSORY_LOADER_ID:
+                Log.d(TAG, "onCreateLoader: Creating kart loader");
+                return new CursorLoader(getContext(),
+                        AccessoryContentProvider.CONTENT_URI,
+                        Constants.PROJECTION_ACCESSORY,
+                        Constants.SELECT_WHERE_GAME, mSelectionArgs, null);
+            case Constants.TRACK_LOADER_ID:
+                Log.d(TAG, "onCreateLoader: Creating kart loader");
+                return new CursorLoader(getContext(),
+                        TrackContentProvider.CONTENT_URI,
+                        Constants.PROJECTION_TRACK,
+                        Constants.SELECT_WHERE_GAME, mSelectionArgs, null);
+        }
+        return null;
+    }
+
+    @Override
+    public void onLoadFinished(final Loader loader, final Cursor cursor) {
+        Log.d(TAG, "onLoadFinished: Finished Loading for " + loader.getId());
+        // Swapping the cursor makes the Data visible in the corresponding ListView.
+        mCursorAdapter.swapCursor(cursor);
+    }
+
+    @Override
+    public void onLoaderReset(final Loader loader) {
+        mCursorAdapter.swapCursor(null);
+    }
+}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/SingleAccessoryFragment.java

@@ -1,124 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.DatabaseHandler;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Accessory;
-
-/**
- * The SingleAccessoryFragment which displays all information of a single accessory object. Also
- * this fragment handles the onClick. Based on the Click we will toggle the availability of this
- * object in the database.
- *
- * @author aldo7224
- * @version 0.1
- * @since 10.08.2017
- */
-public class SingleAccessoryFragment extends Fragment {
-
-    /**
-     * The Tag for Debugging Output.
-     */
-    private static final String TAG = "SingleAccessoryFragment";
-
-    /**
-     * Checkbox indicating the current availability status of the single accessory object.
-     */
-    private CheckBox mAccessoryAvailable;
-
-    /**
-     * TextView displaying the name of the single accessory object.
-     */
-    private TextView mAccessoryName;
-
-    /**
-     * The accessory object assigned to this fragment.
-     */
-    private Accessory mAccessory;
-
-    /**
-     * The Database handler passed from the activity to handle database operations.
-     */
-    private DatabaseHandler mHandler;
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater,
-                             final ViewGroup container,
-                             final Bundle savedInstanceState) {
-        // Inflate the GenericListItem and return it. All Operations on the View will be handled
-        // in own functions.
-        return inflater.inflate(R.layout.generic_list_item, container, false);
-    }
-
-
-    @Override
-    public void onViewCreated(final View view, final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        // Initialize the Views and member variables.
-        // Make all the Visible/Invisible/Gone Actions here as we know which information will be
-        // shown here.
-        initViews(view);
-        view.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                if (mAccessoryAvailable != null) {
-                    mAccessoryAvailable.toggle();
-                }
-            }
-        });
-    }
-
-    /**
-     * Helper method to initialize all View objects and toggle the visibility as we now know which
-     * object should be passed into the fragment.
-     *
-     * @param view The Parent View.
-     */
-    private void initViews(final View view) {
-        mAccessoryAvailable = (CheckBox) view.findViewById(R.id.availability_checkbox);
-        // Assign a CheckedChange Listener to the Checkbox, so we can update the status in the
-        // database as well.
-        mAccessoryAvailable.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(final CompoundButton compoundButton,
-                                         final boolean availability) {
-                if (mHandler != null && mAccessory != null) {
-                    mHandler.changeAccessoryAvailability(mAccessory, availability);
-                } else {
-                    Log.d(TAG, "onCheckedChanged: Either Handler or Accessory are null!");
-                }
-            }
-        });
-
-        // Mark the Container as GONE.
-        final View additionalInfoContainer = view.findViewById(R.id.multiple_information_container);
-        additionalInfoContainer.setVisibility(View.GONE);
-
-        // Initialize all single views and make them visible.
-        mAccessoryName = (TextView) view.findViewById(R.id.single_info_name);
-        mAccessoryName.setVisibility(View.VISIBLE);
-    }
-
-    /**
-     * Helper method which sets the real texts/arguments to the view objects.
-     *
-     * @param accessory The Accessory object of which we will retrieve our texts/arguments.
-     * @param handler   The Database handler which handles the database operations.
-     */
-    public void setArguments(final Accessory accessory, final DatabaseHandler handler) {
-        mAccessory = accessory;
-        mHandler = handler;
-        mAccessoryAvailable.setChecked(accessory.getAvailable());
-        mAccessoryName.setText(accessory.getName());
-    }
-}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/SingleCharacterFragment.java

@@ -1,140 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.DatabaseHandler;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Character;
-
-/**
- * The SingleCharacterFragment which displays all information of a single character object. Also
- * this fragment handles the onClick. Based on the Click we will toggle the availability of this
- * object in the database.
- *
- * @author aldo7224
- * @version 0.1
- * @since 10.08.2017
- */
-public class SingleCharacterFragment extends Fragment {
-
-    /**
-     * The Tag for Debugging Output.
-     */
-    private static final String TAG = "SingleCharacterFragment";
-
-    /**
-     * Checkbox indicating the current availability status of the single character object.
-     */
-    private CheckBox mCharacterAvailable;
-
-    /**
-     * TextView displaying the name of the single character object.
-     */
-    private TextView mCharacterName;
-
-    /**
-     * TextView displaying the package (Cup) of the single character object.
-     */
-    private TextView mCharacterWeight;
-
-    /**
-     * The character object assigned to this fragment.
-     */
-    private Character mCharacter;
-
-    /**
-     * The Database handler passed from the activity to handle database operations.
-     */
-    private DatabaseHandler mHandler;
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater,
-                             final ViewGroup container,
-                             final Bundle savedInstanceState) {
-        // Inflate the GenericListItem and return it. All Operations on the View will be handled
-        // in own functions.
-        return inflater.inflate(R.layout.generic_list_item, container, false);
-    }
-
-
-    @Override
-    public void onViewCreated(final View view, final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        // Initialize the Views and member variables.
-        // Make all the Visible/Invisible/Gone Actions here as we know which information will be
-        // shown here.
-        initViews(view);
-        view.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                if (mCharacterAvailable != null) {
-                    mCharacterAvailable.toggle();
-                }
-            }
-        });
-    }
-
-    /**
-     * Helper method to initialize all View objects and toggle the visibility as we now know which
-     * object should be passed into the fragment.
-     *
-     * @param view The Parent View.
-     */
-    private void initViews(final View view) {
-        mCharacterAvailable = (CheckBox) view.findViewById(R.id.availability_checkbox);
-        // Assign a CheckedChange Listener to the Checkbox, so we can update the status in the
-        // database as well.
-        mCharacterAvailable.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(final CompoundButton compoundButton,
-                                         final boolean availability) {
-                if (mHandler != null && mCharacter != null) {
-                    mHandler.changeCharacterAvailability(mCharacter, availability);
-                } else {
-                    Log.d(TAG, "onCheckedChanged: Either Handler or Character are null!");
-                }
-            }
-        });
-
-        // Make the Container Visible.
-        final View additionalInfoContainer = view.findViewById(R.id.multiple_information_container);
-        additionalInfoContainer.setVisibility(View.VISIBLE);
-
-        // Initialize all single views and make them visible.
-        mCharacterName = (TextView) view.findViewById(R.id.multi_view_name);
-        mCharacterWeight = (TextView) view.findViewById(R.id.additional_info_first);
-        mCharacterWeight.setVisibility(View.VISIBLE);
-        final View separator = view.findViewById(R.id.additional_information_separator);
-        separator.setVisibility(View.GONE);
-        final View secondInfo = view.findViewById(R.id.additional_info_second);
-        secondInfo.setVisibility(View.GONE);
-
-        // Mark the single name view (without additional information) as GONE
-        final View singleName = view.findViewById(R.id.single_info_name);
-        singleName.setVisibility(View.GONE);
-    }
-
-    /**
-     * Helper method which sets the real texts/arguments to the view objects.
-     *
-     * @param character The Character object of which we will retrieve our texts/arguments.
-     * @param handler   The Database handler which handles the database operations.
-     */
-    public void setArguments(final Character character, final DatabaseHandler handler) {
-        mCharacter = character;
-        mHandler = handler;
-        mCharacterAvailable.setChecked(character.getAvailable());
-        mCharacterName.setText(character.getName());
-        mCharacterWeight.setText(character.getWeight());
-    }
-    
-}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/SingleKartFragment.java

@@ -1,146 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.DatabaseHandler;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Kart;
-
-/**
- * The SingleKartFragment which displays all information of a single kart object. Also this fragment
- * handles the onClick. Based on the Click we will toggle the availability of this object in the
- * database.
- *
- * @author aldo7224
- * @version 0.1
- * @since 10.08.2017
- */
-public class SingleKartFragment extends Fragment {
-
-    /**
-     * The Tag for Debugging Output.
-     */
-    private static final String TAG = "SingleKartFragment";
-
-    /**
-     * Checkbox indicating the current availability status of the single kart object.
-     */
-    private CheckBox mKartAvailable;
-
-    /**
-     * TextView displaying the name of the single kart object.
-     */
-    private TextView mKartName;
-
-    /**
-     * TextView displaying the weight of the single kart object.
-     */
-    private TextView mKartWeight;
-
-    /**
-     * TextView displaying the dedicated Driver of the single kart object.
-     */
-    private TextView mKartDedicatedDriver;
-
-    /**
-     * The kart object assigned to this fragment.
-     */
-    private Kart mKart;
-
-    /**
-     * The Database handler passed from the activity to handle database operations.
-     */
-    private DatabaseHandler mHandler;
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater,
-                             final ViewGroup container,
-                             final Bundle savedInstanceState) {
-        // Inflate the GenericListItem and return it. All Operations on the View will be handled
-        // in own functions.
-        return inflater.inflate(R.layout.generic_list_item, container, false);
-    }
-
-
-    @Override
-    public void onViewCreated(final View view, final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        // Initialize the Views and member variables.
-        // Make all the Visible/Invisible/Gone Actions here as we know which information will be
-        // shown here.
-        initViews(view);
-        view.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                if (mKartAvailable != null) {
-                    mKartAvailable.toggle();
-                }
-            }
-        });
-    }
-
-    /**
-     * Helper method to initialize all View objects and toggle the visibility as we now know which
-     * object should be passed into the fragment.
-     *
-     * @param view The Parent View.
-     */
-    private void initViews(final View view) {
-        mKartAvailable = (CheckBox) view.findViewById(R.id.availability_checkbox);
-        // Assign a CheckedChange Listener to the Checkbox, so we can update the status in the
-        // database as well.
-        mKartAvailable.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(final CompoundButton compoundButton,
-                                         final boolean availability) {
-                if (mHandler != null && mKart != null) {
-                    mHandler.changeKartAvailability(mKart, availability);
-                } else {
-                    Log.d(TAG, "onCheckedChanged: Either Handler or Kart are null!");
-                }
-            }
-        });
-
-        // Make the Container Visible.
-        final View additionalInfoContainer = view.findViewById(R.id.multiple_information_container);
-        additionalInfoContainer.setVisibility(View.VISIBLE);
-
-        // Initialize all single views and make them visible.
-        mKartName = (TextView) view.findViewById(R.id.multi_view_name);
-        mKartWeight = (TextView) view.findViewById(R.id.additional_info_first);
-        mKartWeight.setVisibility(View.VISIBLE);
-        final View separator = view.findViewById(R.id.additional_information_separator);
-        separator.setVisibility(View.VISIBLE);
-        mKartDedicatedDriver = (TextView) view.findViewById(R.id.additional_info_second);
-        mKartDedicatedDriver.setVisibility(View.VISIBLE);
-
-        // Mark the single name view (without additional information) as GONE
-        final View singleName = view.findViewById(R.id.single_info_name);
-        singleName.setVisibility(View.GONE);
-    }
-
-    /**
-     * Helper method which sets the real texts/arguments to the view objects.
-     *
-     * @param kart    The Kart object of which we will retrieve our texts/arguments.
-     * @param handler The Database handler which handles the database operations.
-     */
-    public void setArguments(final Kart kart, final DatabaseHandler handler) {
-        mKart = kart;
-        mHandler = handler;
-        mKartAvailable.setChecked(kart.getAvailable());
-        mKartName.setText(kart.getName());
-        mKartWeight.setText(kart.getWeight());
-        mKartDedicatedDriver.setText(kart.getDedicatedDriver());
-    }
-
-}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/SingleTrackFragment.java

@@ -1,145 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.DatabaseHandler;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Track;
-
-/**
- * The SingleTrackFragment which displays all information of a single track object. Also this
- * fragment handles the onClick. Based on the Click we will toggle the availability of this object
- * in the database.
- *
- * @author aldo7224
- * @version 0.1
- * @since 10.08.2017
- */
-public class SingleTrackFragment extends Fragment {
-
-    /**
-     * The Tag for Debugging Output.
-     */
-    private static final String TAG = "SingleTrackFragment";
-
-    /**
-     * Checkbox indicating the current availability status of the single track object.
-     */
-    private CheckBox mTrackAvailable;
-
-    /**
-     * TextView displaying the name of the single track object.
-     */
-    private TextView mTrackName;
-
-    /**
-     * TextView displaying the package (Cup) of the single track object.
-     */
-    private TextView mTrackPackage;
-
-    /**
-     * TextView displaying the number of the single track object.
-     */
-    private TextView mTrackNumber;
-
-    /**
-     * The track object assigned to this fragment.
-     */
-    private Track mTrack;
-
-    /**
-     * The Database handler passed from the activity to handle database operations.
-     */
-    private DatabaseHandler mHandler;
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater,
-                             final ViewGroup container,
-                             final Bundle savedInstanceState) {
-        // Inflate the GenericListItem and return it. All Operations on the View will be handled
-        // in own functions.
-        return inflater.inflate(R.layout.generic_list_item, container, false);
-    }
-
-
-    @Override
-    public void onViewCreated(final View view, final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        // Initialize the Views and member variables.
-        // Make all the Visible/Invisible/Gone Actions here as we know which information will be
-        // shown here.
-        initViews(view);
-        view.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                if (mTrackAvailable != null) {
-                    mTrackAvailable.toggle();
-                }
-            }
-        });
-    }
-
-    /**
-     * Helper method to initialize all View objects and toggle the visibility as we now know which
-     * object should be passed into the fragment.
-     *
-     * @param view The Parent View.
-     */
-    private void initViews(final View view) {
-        mTrackAvailable = (CheckBox) view.findViewById(R.id.availability_checkbox);
-        // Assign a CheckedChange Listener to the Checkbox, so we can update the status in the
-        // database as well.
-        mTrackAvailable.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(final CompoundButton compoundButton,
-                                         final boolean availability) {
-                if (mHandler != null && mTrack != null) {
-                    mHandler.changeTrackAvailability(mTrack, availability);
-                } else {
-                    Log.d(TAG, "onCheckedChanged: Either Handler or Track are null!");
-                }
-            }
-        });
-
-        // Make the Container Visible.
-        final View additionalInfoContainer = view.findViewById(R.id.multiple_information_container);
-        additionalInfoContainer.setVisibility(View.VISIBLE);
-
-        // Initialize all single views and make them visible.
-        mTrackName = (TextView) view.findViewById(R.id.multi_view_name);
-        mTrackPackage = (TextView) view.findViewById(R.id.additional_info_first);
-        mTrackPackage.setVisibility(View.VISIBLE);
-        final View separator = view.findViewById(R.id.additional_information_separator);
-        separator.setVisibility(View.VISIBLE);
-        mTrackNumber = (TextView) view.findViewById(R.id.additional_info_second);
-        mTrackNumber.setVisibility(View.VISIBLE);
-
-        // Mark the single name view (without additional information) as GONE
-        final View singleName = view.findViewById(R.id.single_info_name);
-        singleName.setVisibility(View.GONE);
-    }
-
-    /**
-     * Helper method which sets the real texts/arguments to the view objects.
-     *
-     * @param track   The Track object of which we will retrieve our texts/arguments.
-     * @param handler The Database handler which handles the database operations.
-     */
-    public void setArguments(final Track track, final DatabaseHandler handler) {
-        mTrack = track;
-        mHandler = handler;
-        mTrackAvailable.setChecked(track.getAvailable());
-        mTrackName.setText(track.getName());
-        mTrackPackage.setText(track.getPackage());
-        mTrackNumber.setText(track.getNumber());
-    }
-}

app/src/main/java/com/de/aldo_apps/aldo/mariokartcircuitselector/fragments/SingleWheelsFragment.java

@@ -1,125 +0,0 @@
-package com.de.aldo_apps.aldo.mariokartcircuitselector.fragments;
-
-import android.os.Bundle;
-import android.support.v4.app.Fragment;
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.CheckBox;
-import android.widget.CompoundButton;
-import android.widget.TextView;
-
-import com.de.aldo_apps.aldo.mariokartcircuitselector.DatabaseHandler;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.R;
-import com.de.aldo_apps.aldo.mariokartcircuitselector.database_models.Wheels;
-
-/**
- * The SingleWheelsFragment which displays all information of a single wheels object. Also this
- * fragment handles the onClick. Based on the Click we will toggle the availability of this object
- * in the database.
- *
- * @author aldo7224
- * @version 0.1
- * @since 10.08.2017
- */
-public class SingleWheelsFragment extends Fragment {
-
-    /**
-     * The Tag for Debugging Output.
-     */
-    private static final String TAG = "SingleWheelsFragment";
-
-    /**
-     * Checkbox indicating the current availability status of the single wheels object.
-     */
-    private CheckBox mWheelsAvailable;
-
-    /**
-     * TextView displaying the name of the single wheels object.
-     */
-    private TextView mWheelsName;
-
-    /**
-     * The wheels object assigned to this fragment.
-     */
-    private Wheels mWheels;
-
-    /**
-     * The Database handler passed from the activity to handle database operations.
-     */
-    private DatabaseHandler mHandler;
-
-    @Override
-    public View onCreateView(final LayoutInflater inflater,
-                             final ViewGroup container,
-                             final Bundle savedInstanceState) {
-        // Inflate the GenericListItem and return it. All Operations on the View will be handled
-        // in own functions.
-        return inflater.inflate(R.layout.generic_list_item, container, false);
-    }
-
-
-    @Override
-    public void onViewCreated(final View view, final Bundle savedInstanceState) {
-        super.onViewCreated(view, savedInstanceState);
-
-        // Initialize the Views and member variables.
-        // Make all the Visible/Invisible/Gone Actions here as we know which information will be
-        // shown here.
-        initViews(view);
-        view.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(final View view) {
-                if (mWheelsAvailable != null) {
-                    mWheelsAvailable.toggle();
-                }
-            }
-        });
-    }
-
-    /**
-     * Helper method to initialize all View objects and toggle the visibility as we now know which
-     * object should be passed into the fragment.
-     *
-     * @param view The Parent View.
-     */
-    private void initViews(final View view) {
-        mWheelsAvailable = (CheckBox) view.findViewById(R.id.availability_checkbox);
-        // Assign a CheckedChange Listener to the Checkbox, so we can update the status in the
-        // database as well.
-        mWheelsAvailable.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
-            @Override
-            public void onCheckedChanged(final CompoundButton compoundButton,
-                                         final boolean availability) {
-                if (mHandler != null && mWheels != null) {
-                    mHandler.changeWheelsAvailability(mWheels, availability);
-                } else {
-                    Log.d(TAG, "onCheckedChanged: Either Handler or Wheels are null!");
-                }
-            }
-        });
-
-        // Mark the Container as GONE.
-        final View additionalInfoContainer = view.findViewById(R.id.multiple_information_container);
-        additionalInfoContainer.setVisibility(View.GONE);
-
-        // Initialize all single views and make them visible.
-        mWheelsName = (TextView) view.findViewById(R.id.single_info_name);
-        mWheelsName.setVisibility(View.VISIBLE);
-    }
-
-    /**
-     * Helper method which sets the real texts/arguments to the view objects.
-     *
-     * @param wheels  The Wheels object of which we will retrieve our texts/arguments.
-     * @param handler The Database handler which handles the database operations.
-     */
-    public void setArguments(final Wheels wheels, final DatabaseHandler handler) {
-        mWheels = wheels;
-        mHandler = handler;
-        mWheelsAvailable.setChecked(wheels.getAvailable());
-        mWheelsName.setText(wheels.getName());
-    }
-    
-}

app/src/main/res/drawable/animation_progress.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<animated-rotate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:drawable="@drawable/progress_image"
+    android:pivotX="50%"
+    android:pivotY="50%"/>

app/src/main/res/layout/activity_game_selection.xml

@@ -1,30 +1,25 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:orientation="vertical"
+    tools:context="com.de.aldo_apps.aldo.mariokartcircuitselector.activities.GameSelectionActivity">
-    tools:context="com.de.aldo_apps.aldo.mariokartcircuitselector.GameSelection">
 
-    <EditText
+    <android.support.design.widget.AppBarLayout
-        android:id="@+id/id_input"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:inputType="number" />
+        android:theme="@style/AppTheme.AppBarOverlay">
 
-    <Button
+        <android.support.v7.widget.Toolbar
-        android:id="@+id/ok_button"
+            android:id="@+id/toolbar"
-        android:layout_width="wrap_content"
+            android:layout_width="match_parent"
-        android:layout_height="wrap_content"
+            android:layout_height="?attr/actionBarSize"
-        android:text="Get Track"
+            android:background="?attr/colorPrimary"
+            app:popupTheme="@style/AppTheme.PopupOverlay" />
 
-        />
+    </android.support.design.widget.AppBarLayout>
 
-    <TextView
+    <include layout="@layout/content_game_selection" />
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:id="@+id/result_field"
-        android:text="TestContent Goes here" />
 
-</LinearLayout>
+</android.support.design.widget.CoordinatorLayout>

app/src/main/res/layout/activity_game_settings.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="com.de.aldo_apps.aldo.mariokartcircuitselector.activities.GameSettingsActivity"
+    >
+
+    <android.support.v4.view.ViewPager
+        android:id="@+id/vp_horizontal_ntb"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_above="@+id/ntb_vertical"/>
+
+    <devlight.io.library.ntb.NavigationTabBar
+        app:ntb_title_mode="all"
+        app:ntb_titled="true"
+        app:ntb_title_size="14sp"
+        android:id="@+id/ntb_vertical"
+        android:layout_width="match_parent"
+        android:layout_height="50dp"
+        android:layout_alignParentBottom="true"
+        app:ntb_preview_colors="@array/vertical_ntb"/>
+
+</RelativeLayout>

app/src/main/res/layout/content_game_selection.xml

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    app:layout_behavior="@string/appbar_scrolling_view_behavior"
+    tools:context="com.de.aldo_apps.aldo.mariokartcircuitselector.activities.GameSelectionActivity"
+    tools:showIn="@layout/activity_game_selection">
+
+    <ListView
+        android:layout_width="wrap_content"
+        android:layout_height="match_parent"
+        android:id="@+id/all_games_list" />
+
+</android.support.constraint.ConstraintLayout>

app/src/main/res/layout/game_list_item.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content">
+
+    <android.support.v7.widget.CardView xmlns:app="http://schemas.android.com/apk/res-auto"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_margin="5dp"
+        app:cardCornerRadius="5dp"
+        app:cardElevation="14dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/cover_view"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:visibility="gone" />
+
+            <TextView
+                android:id="@+id/id_view"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:visibility="gone" />
+
+            <TextView
+                android:id="@+id/game_name_view"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:textAppearance="@android:style/TextAppearance.Large" />
+
+        </LinearLayout>
+    </android.support.v7.widget.CardView>
+
+</RelativeLayout>

app/src/main/res/layout/generic_list_item.xml

@@ -1,63 +1,96 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="horizontal" android:layout_width="match_parent"
+    android:layout_width="match_parent"
-    android:layout_height="wrap_content" android:layout_centerHorizontal="true">
+    android:layout_height="wrap_content"
+    android:layout_centerHorizontal="true">
 
-    <!-- CheckBox indicating the current availability status -->
+    <android.support.v7.widget.CardView
-    <CheckBox
+        xmlns:app="http://schemas.android.com/apk/res-auto"
-        android:layout_width="wrap_content"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:id="@+id/availability_checkbox"/>
+        android:layout_margin="5dp"
+        app:cardCornerRadius="5dp"
+        app:cardElevation="14dp"
+        >
 
-    <!-- LinearLayout container which holds multiple TextViews for multiple information
-    (e.g. name and weight) -->
-    <LinearLayout
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:id="@+id/multiple_information_container">
-
-        <!-- The TextView containing the objects name -->
-        <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/multi_view_name" />
-
-        <!-- LinearLayout which aligns the additional information properly -->
         <LinearLayout
-            android:layout_width="wrap_content"
+            android:layout_width="match_parent"
-            android:layout_height="wrap_content">
+            android:layout_height="wrap_content"
+            android:layout_centerHorizontal="true"
+            android:orientation="horizontal">
 
-            <!-- TextView holding the first value (e.g. weight) -->
             <TextView
+                android:id="@+id/database_id_view"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:id="@+id/additional_info_first" />
+                android:visibility="gone" />
 
-            <!-- TextView which has a function as a separator between the first and the second
+            <!-- CheckBox indicating the current availability status -->
-            value -->
+            <CheckBox
-            <TextView
+                android:id="@+id/availability_checkbox"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content" />
+
+            <!-- LinearLayout container which holds multiple TextViews for multiple information
+            (e.g. name and weight) -->
+            <LinearLayout
+                android:id="@+id/multiple_information_container"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:id="@+id/additional_information_separator"
+                android:orientation="vertical">
-                android:layout_marginLeft="@dimen/separator_margin"
-                android:layout_marginRight="@dimen/separator_margin"
-                android:text="@string/separator"/>
 
-            <!-- TextView holding the second value (e.g. dedicated driver) -->
+                <!-- The TextView containing the objects name -->
+                <TextView
+                    android:id="@+id/multi_view_name"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="@android:style/TextAppearance.Large" />
+
+                <!-- LinearLayout which aligns the additional information properly -->
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content">
+
+                    <!-- TextView holding the first value (e.g. weight) -->
+                    <TextView
+                        android:id="@+id/additional_info_first"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" />
+
+                    <!-- TextView which has a function as a separator between the first and the second
+                    value -->
+                    <TextView
+                        android:id="@+id/additional_information_separator"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:layout_marginLeft="@dimen/separator_margin"
+                        android:layout_marginRight="@dimen/separator_margin"
+                        android:text="@string/separator" />
+
+                    <!-- TextView holding the second value (e.g. dedicated driver) -->
+                    <TextView
+                        android:id="@+id/additional_info_second"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" />
+                </LinearLayout>
+            </LinearLayout>
+
+            <!-- TextView which simply holds a name without additional information -->
             <TextView
+                android:id="@+id/single_info_name"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
-                android:id="@+id/additional_info_second"
+                android:textAppearance="@android:style/TextAppearance.Large"
-                />
+                android:visibility="gone" />
         </LinearLayout>
-    </LinearLayout>
 
-    <!-- TextView which simply holds a name without additional information -->
+        <de.hdodenhof.circleimageview.CircleImageView
-    <TextView
+            android:layout_width="50dp"
-        android:layout_width="wrap_content"
+            android:layout_height="50dp"
-        android:layout_height="wrap_content"
+            android:id="@+id/image_view"
-        android:id="@+id/single_info_name"
+            android:visibility="gone"
-        android:visibility="gone"/>
+            android:layout_gravity="end"
 
-</LinearLayout>
+            />
+    </android.support.v7.widget.CardView>
+</RelativeLayout>

app/src/main/res/layout/pager_item.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ListView
+        android:id="@+id/all_items_list_view"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical" />
+
+</ScrollView>

app/src/main/res/values/arrays.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <string-array name="vertical_ntb">
+        <item>#df5a55</item>
+        <item>#f9bb72</item>
+        <item>#76afcf</item>
+        <item>#dd6495</item>
+        <item>#72d3b4</item>
+        <item>#563d91</item>
+        <item>#56342e</item>
+        <item>#8c9f58</item>
+    </string-array>
+
+</resources>

app/src/main/res/values/dimens.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
     <dimen name="separator_margin">10dp</dimen>
+    <dimen name="fab_margin">16dp</dimen>
 
 
 </resources>

app/src/main/res/values/strings.xml

@@ -2,4 +2,12 @@
     <string name="app_name">MarioKartCircuitSelector</string>
 
     <string name="separator">-</string>
+
+    <string name="title_track">Strecken</string>
+    <string name="title_character">Fahrer</string>
+    <string name="title_kart">Karts</string>
+    <string name="title_accessory">Sonstiges</string>
+    <string name="title_wheels">Reifen</string>
+    <string name="title_activity_game_selection">GameSelectionActivity</string>
+
 </resources>

app/src/main/res/values/styles.xml

@@ -8,4 +8,13 @@
         <item name="colorAccent">@color/colorAccent</item>
     </style>
 
+    <style name="AppTheme.NoActionBar">
+        <item name="windowActionBar">false</item>
+        <item name="windowNoTitle">true</item>
+    </style>
+
+    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
+
+    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
+
 </resources>