Check if app is open during a GCM onMessage event?

Question

I am wondering how to check if my application is open and currently visible to the user when receiving an onMessage() from GCM. At first, I was just using my ow

Answer 1

I would use order broadcasts to do that.

In your onMessage method:

Intent responseIntent = new Intent("com.yourpackage.GOT_PUSH");
sendOrderedBroadcast(responseIntent, null);

In your Activity:

public class YourActivity extends Activity {

    final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {

        @Override
        public void onReceive(Context context, Intent intent) {
            //Right here do what you want in your activity
            abortBroadcast();
        }
    };

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        //.....
    }

    @Override
    protected void onPause() {
        unregisterReceiver(mBroadcastReceiver);
        super.onPause();
    }

    @Override
    protected void onResume() {
        IntentFilter filter = new IntentFilter("com.yourpackage.GOT_PUSH");
        filter.setPriority(2);
        registerReceiver(mBroadcastReceiver, filter);
        super.onResume();
    }
}

The other BroadcastReceiver

public class SecondReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        //In this receiver just send your notification
    }

}

Manifest:

Basically in the onMessage method you send an Intent which is first received by the BroadcastReceiver registered inside YourActivity if it is running and in foreground, otherwise it is received by the SecondReceiver.