Notifying when screen is off

Question

I'm trying to generate a notification which vibrates the phone and plays a sound when the screen is off (cpu turned off). According to the Log messages, the notification is being sent, but the phone doesn't vibrate or play the sound until I turn the screen on again. I tried holding a 2 second temporary wakelock (PowerManager.PARTIAL_WAKE_LOCK), which I thought would be ample time for the notification to be played, but alas, it still doesn't.

Any pointers to get the notification to run reliably? I'm testing this on an G1 running Android 1.6.

Code I'm using:

notif.vibrate = new long[] {100, 1000};
notif.defaults |= Notification.DEFAULT_SOUND;

notif.ledARGB = Color.RED;
notif.ledOnMS = 1;
notif.ledOffMS = 0;
notif.flags = Notification.FLAG_SHOW_LIGHTS;

notif.flags |= NOTIF_FLAGS; //static var

if (!screenOn) { //var which updates when screen turns off/on
    mWakeLock.acquire(2000); 
}

manager.notify(NOTIF_ID, notif);

Answer 1

You can make your own receiver that extends to BroadcastReceiver which can perform your notification when it receives INTENT.ACTION_SCREEN_OFF

@Override 
public void onReceive(Context context, Intent intent) {
  Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
  long milliseconds = 1000;  
    if (intent.getAction().equals(Intent.ACTION_SCREEN_OFF)) {
        // vibrate the phone
            v.vibrate(milliseconds);
        // any other code here            
     }   
}