[ShareLocation] Switched to FusedLocationProvider

Replaced the previous locationManager subscription with the gms
based FusedLocationProviderClient subscription for better battery
optimization.

app/src/main/java/com/aldo/apps/familyhelpers/workers/LocationHelper.java

@@ -5,6 +5,9 @@ import static android.Manifest.permission.ACCESS_FINE_LOCATION;
 import static com.aldo.apps.familyhelpers.utils.GlobalConstants.SHARE_LOCATION_CANCEL_ACTION;
 import static com.aldo.apps.familyhelpers.utils.GlobalConstants.SHARE_LOCATION_CHANNEL_ID;
 import static com.aldo.apps.familyhelpers.utils.GlobalConstants.SHARE_LOCATION_NOTIFICATION_ID;
+import static com.google.android.gms.location.Granularity.GRANULARITY_FINE;
+import static com.google.android.gms.location.Priority.PRIORITY_BALANCED_POWER_ACCURACY;
+import static com.google.android.gms.location.Priority.PRIORITY_HIGH_ACCURACY;
 
 import android.app.Activity;
 import android.app.Notification;
@@ -28,6 +31,11 @@ import com.aldo.apps.familyhelpers.R;
 import com.aldo.apps.familyhelpers.ShareLocationActivity;
 import com.aldo.apps.familyhelpers.model.LocationObject;
 import com.aldo.apps.familyhelpers.ui.NotificationHelper;
+import com.google.android.gms.location.FusedLocationProviderClient;
+import com.google.android.gms.location.LocationCallback;
+import com.google.android.gms.location.LocationRequest;
+import com.google.android.gms.location.LocationResult;
+import com.google.android.gms.location.LocationServices;
 
 import java.lang.ref.WeakReference;
 import java.util.List;
@@ -38,7 +46,7 @@ import io.reactivex.rxjava3.subjects.BehaviorSubject;
  * Helper class to encapsulate all Location specific calls into one utility class.
  * TODO: Change logic to make use of the FusedLocationProvider.
  */
-public final class LocationHelper implements LocationListener {
+public final class LocationHelper {
 
     /**
      * Tag for debugging purpose.
@@ -60,9 +68,32 @@ public final class LocationHelper implements LocationListener {
     private static LocationHelper sInstance;
 
     /**
-     * The {@link LocationManager} object to listen to location updates.
+     * The {@link FusedLocationProviderClient} to get the most accurate and battery optimized location.
      */
-    private final LocationManager mLocationManager;
+    private final FusedLocationProviderClient mFusedLocationProvider;
+
+    private final LocationCallback mLocationCallback = new LocationCallback() {
+        @Override
+        public void onLocationResult(@NonNull final LocationResult locationResult) {
+            super.onLocationResult(locationResult);
+            if (locationResult == null) {
+                Log.d(TAG, "onLocationResult: No Location available, skip update");
+                return;
+            }
+            for (final Location location : locationResult.getLocations()) {
+                if (location.hasSpeed()) {
+                    Log.d(TAG, "onLocationResult: Location with speed received, continue...");
+                    final LocationObject locationObject = LocationObject.fromLocation(location);
+                    Log.d(TAG, "onLocationChanged: Received update with " + locationObject);
+                    mLocationSubject.onNext(locationObject);
+                    mDbHelper.insertOrUpdateLocation(locationObject);
+                    return;
+                }
+            }
+            Log.d(TAG, "onLocationResult: Haven't receive a location with speed, skip this update...");
+        }
+    };
+
     /**
      * The {@link BehaviorSubject} for the {@link LocationObject} for clients to subscribe to.
      * TODO: Check if needed.
@@ -91,7 +122,7 @@ public final class LocationHelper implements LocationListener {
      * @param context The {@link Context) from where this was instantiated.
      */
     private LocationHelper(final Context context) {
-        mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
+        mFusedLocationProvider = LocationServices.getFusedLocationProviderClient(context);
         mNotificationHelper = new NotificationHelper(context);
         mDbHelper = new DatabaseHelper();
         mNotificationHelper.createAndRegisterNotificationChannel(
@@ -189,13 +220,12 @@ public final class LocationHelper implements LocationListener {
             return true;
         }
         if (ContextCompat.checkSelfPermission(context, ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) {
-            mLocationManager.requestLocationUpdates(
-                    LocationManager.FUSED_PROVIDER,
-                    minIntervalMillis,
-                    minDistance,
-                    this,
-                    Looper.getMainLooper()
-            );
+            final LocationRequest locationRequest = new LocationRequest.Builder(minIntervalMillis)
+                    .setGranularity(GRANULARITY_FINE)
+                    .setMinUpdateDistanceMeters(minDistance)
+                    .setPriority(PRIORITY_BALANCED_POWER_ACCURACY)
+                    .build();
+            mFusedLocationProvider.requestLocationUpdates(locationRequest, mLocationCallback, Looper.getMainLooper());
             mIsSubscribed = true;
         } else {
             mIsSubscribed = false;
@@ -212,7 +242,7 @@ public final class LocationHelper implements LocationListener {
             Log.d(TAG, "stopLocationUpdates: Subscription already ended, no need to end again");
             return;
         }
-        mLocationManager.removeUpdates(this);
+        mFusedLocationProvider.removeLocationUpdates(mLocationCallback);
         mIsSubscribed = false;
         mSharingStateSubject.onNext(false);
         mDbHelper.cancelOngoingLocationSharing();
@@ -265,32 +295,4 @@ public final class LocationHelper implements LocationListener {
                 .setStyle(new NotificationCompat.BigTextStyle())
                 .build();
     }
-
-    @Override
-    public void onLocationChanged(@NonNull final Location location) {
-        final LocationObject locationObject = LocationObject.fromLocation(location);
-        Log.d(TAG, "onLocationChanged: Received update with " + locationObject);
-        mLocationSubject.onNext(locationObject);
-        mDbHelper.insertOrUpdateLocation(locationObject);
-    }
-
-    @Override
-    public void onLocationChanged(@NonNull final List<Location> locations) {
-        LocationListener.super.onLocationChanged(locations);
-    }
-
-    @Override
-    public void onFlushComplete(final int requestCode) {
-        LocationListener.super.onFlushComplete(requestCode);
-    }
-
-    @Override
-    public void onProviderEnabled(@NonNull final String provider) {
-        LocationListener.super.onProviderEnabled(provider);
-    }
-
-    @Override
-    public void onProviderDisabled(@NonNull final String provider) {
-        LocationListener.super.onProviderDisabled(provider);
-    }
 }