Android service background Android Oreo

Question

in my Android project i've created an custom clock widget with a service which contains an instance of Broadcast Reciever and an intent filter. The Broadcast Reciever provides the update of the widget every time arrives the ACTION_TIME_TICK. This is working perfectly when set targetSdkVersion to 25, in gradle. But if i target to sdk 27, the service stops after few minutes. I've read the documentation about background executions limit in Android O, but i can't find any approach that is useful for my project. Do you have any suggestion?

Answer 1

There are a couple of things you can try which, when used in concert, should be able to cut through all of the idle/standby/doze modes (irrespective of OS version).

1. Use a WakefulBroadcastReceiver instead of an ordinary BroadcastReceiver . Make sure you include the WAKE_LOCK permission to use it correctly.

2. Use the setExactAndAllowWhileIdle() method (on API 23 & above) to schedule the Intent for the receiver:

    if (Build.VERSION.SDK_INT < 23) { if (Build.VERSION.SDK_INT >= 19) { setExact(...); } else { set(...); } } else { setExactAndAllowWhileIdle(...); }