Once an Alarm Started, this will execute until it is stopped explicitly or until device reboots.The schedule frequency should be be set to minimum as possible. So you have to be careful while scheduling an alarm task which executes more frequently. An alarm can wake your device, but this consumes more battery.Once alarm is scheduled, it will invoke even when your application is not running or even when your device is in sleep.This can run outside the lifetime of your application. This allow your application to execute certain piece of code on a given scheduled time.
AlarmManager is a class in Android which is used access device alarm service.In the context of this tutorial we will learn how to create a repeat alarm example in android using AlarmManager class. Schedule and cancel alarm from activityĥ.
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