@Override
protected void onPause() {
Log.d(TAG, ".onPause() entered");
super.onPause();
// unregister
unregisterReceivers();
// unregister current activity inside our application class
app.setCurrentRunningActivityEmpty();
}
@Override
protected void onResume() {
Log.d(TAG, ".onResume() entered");
super.onResume();
// register coordinatesChangedBroadcastReceiver
registerReceivers();
// setup google map layout
setUpMapIfNeeded();
// register current activity as a running activity inside our application class
app.setCurrentRunningActivity(TAG);
}