Need code example on how to run an Android service forever in the background even when device sleeping, like Whatsapp?

Question

I have tried various ways to achieve this, but my service eventually gets killed.

I want to use AlarmManager to trigger a class every one hour. Even if the device is

Answer 1

Follow these easy steps to keep servce alive forever in android device. 1. Call a service by using alarm manager. 2. return START_STICKY in onStart method. 3. In on destroy call the alarm manager and restart service by using startService method. 4.(Optional)Repeat the point number 3 in onTaskRemoved method.