How to ensure PeriodicWorkRequests are called on device reboot on Android N and upwards

Question

I recently tried to use the WorkManager\'s PeriodicWorkRequests as a surefire way of getting user location updates periodically in the background.

Answer 1

Let Say you have defined a RebootWorker class that extends Worker and do some particular job after device get rebooted. 1st Approach :

public class RebootWorker extends Worker {
...............................
}

In that case defined this worker inside manifest

<service
    android:name=".RebootWorker"
    android:process=":worker"/> 

This will help to get Workmanger run your worker service after device reboot. Because due to device reboot your app is cleared from task manager.

2nd Approach : You can also use BroadcastReceiver to listen Boot completed action

public class MyReceiver extends BroadcastReceiver {
    WorkManager mWorkManager;
    PeriodicWorkRequest rebootRequest;

    @Override
    public void onReceive(Context context, Intent intent) {
        Log.i(MainActivity.TAG, "intent.getAction(): "+intent.getAction());

        //Reboot worker
        mWorkManager = WorkManager.getInstance(context);
        rebootRequest = new PeriodicWorkRequest.Builder(RebootWorker.class,
                MainActivity.REPEAT_INTERVAL, MainActivity.TIME).build();

        if ("android.intent.action.BOOT_COMPLETED".equals(intent.getAction())) {
           //do your work and enqueue it 
            mWorkManager.enqueue(rebootRequest);
}
}
}