Android Location Requesting location updates on a separate thread using LocationManager

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Example

As always, you need to make sure you have the required permissions.

public class MainActivity extends AppCompatActivity implements LocationListener{

    private LocationManager mLocationManager = null;
    HandlerThread mLocationHandlerThread = null;
    Looper mLocationHandlerLooper = null;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main2);

        mLocationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        mLocationHandlerThread = new HandlerThread("locationHandlerThread");
    }


    @Override
    protected void onResume() {
        super.onResume();

        mLocationHandlerThread.start();
        mLocationHandlerLooper = mLocationHandlerThread.getLooper();

        try {
            mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this, mLocationHandlerLooper);
        }
        catch(SecurityException e){
            // The app doesn't have the correct permissions
        }
    }


    @Override
    protected void onPause() {
        try{
            mLocationManager.removeUpdates(this);
        }
        catch (SecurityException e){
            // The app doesn't have the correct permissions
        }

        mLocationHandlerLooper = null;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2)
            mLocationHandlerThread.quitSafely();
        else
            mLocationHandlerThread.quit();

        mLocationHandlerThread = null;


        super.onPause();
    }




    @Override
    public void onLocationChanged(Location location) {
        // We received a location update on a separate thread!
        Log.i("onLocationChanged", location.toString());

        // You can verify which thread you're on by something like this:
        // Log.d("Which thread?", Thread.currentThread() == Looper.getMainLooper().getThread() ? "UI Thread" : "New thread");
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }
}


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