Memory-leak-solution-for-unregister-listener.java

public class GoodActivity extends Activity implements LocationListener {

    private LocationManager mLocManager;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_leaks);
        mLocManager = (LocationManager) getSystemService(LOCATION_SERVICE);
        mLocManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
                TimeUnit.MINUTES.toMillis(5), 100, this);
    }

    @Override
    protected void onDestroy() {
        if(mLocManager != null){
             mLocManager.removeUpdates(this);
        }
        super.onDestroy();
    }

    // Listener implementation omitted
}