AlarmManager is not triggered when App is closed

Question

I have some in-App notification to show to users at a specific time but nothing is shown when the App is closed.

Setting alarm:

Intent alarmIntent =          


        

Answer 1

Your AndroidManifest.xml should be like this:

<receiver android:name=".ReminderAlarmManager">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED" />
    </intent-filter>
</receiver>

<service android:name=".OrderReminderNotificationService "/>

Answer 2

Your device won't allow you to trigger the alarm since it need to save some battery power. So, go to SETTINGS ->Battery/power saver->Apps then choose your app, after that select "no restriction"

Answer 3

The alarm manager doesn't trigger the Intent services on certain phones. I was testing the app on a Oneplus 3T the entire day before I realized there was nothing wrong with the code. Just tested the same app on a Moto G, and it works as expected.