Start an application on "background" mode

Question

I starting an application from a Wearable Listener, but i don't wanna open the app "visually", keeping it on background. I mean, if the user press the button to see the open apps, he must be able to see this app. How can i do this? I'm not sure if i'm using the correct terms.

Answer 1

You can use IntentService or Service to run any task in background and even without user's interaction. Here goes a sample Service demo,

public class TestService extends Service {

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {        
        return super.onStartCommand(intent, flags, startId);
    }

    @Override
    public IBinder onBind(Intent arg0) {        
        return null;
    }

}

run the service from a button click,

    btnStart.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            Intent i = new Intent(MainActivity.this, TestService.class);
            i.putExtra("name", "SurvivingwithAndroid");        
            MainActivity.this.startService(i);        
        }

});

Which give you the output in console,