How to restart a killed service automatically?

Question

When a service has been killed, how to restart it automatically?

sometimes without even calling onDestroy()

Solution 1

I inherited an IntentService, so I had to be gentle. It worked for me when I overrode onStartCommand() but

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

That is, let the parent do what it should and return START_STICKY.

Solution 2

Overrides the onStartCommand() and give START_STICKY or START_REDELIVER_INTENT (depends on your needs) as the return value. The system will then make sure to restart your service until you explicitly stop the service.

http://developer.android.com/reference/android/app/Service.html#START_REDELIVER_INTENT

http://developer.android.com/reference/android/app/Service.html#START_STICKY

Comments

[Abhi]

I am doing same. working fine in nexus 5. But in xiaomi service is getting killed as soon as my application is killing.

[Abhi]

I am doing START_STICKY. working fine in nexus 5 and restarting the service. But in xiaomi service is getting killed as soon as my application is killing.

[Meymann]

In bad cases, you can start an alarm clock intent to make sure your service is a live. Beware of using it too often, as waking the CPU costs battery life. Do you have an app that does revive swipe to dismiss?