Notification Not Working When App is Closed. Android

[3sluz]

Notifications do not work as expected when the app is closed. However, if the app is completely closed, notifications will not be received at all. ,even if i add the app to Alarm & Reminder

[bohdanbats-principles]

Check that you have added all of the following permissions to the AndroidManifest.xml:

<uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" /> <uses-permission android:name="android.permission.USE_EXACT_ALARM" /> <uses-permission android:name="android.permission.WAKE_LOCK" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <uses-permission android:name="android.permission.VIBRATE" /> <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />