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I am a newbie to Android. I read the Android Documentation but I still need some more clarification. Can anyone tell me what exactly a PendingIntent is?
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Android PendingIntent In other words, PendingIntent lets us pass a future Intent to another application and allow that application to execute that Intent as if it had the same permissions as our application, whether or not our application is still around when the Intent is eventually invoked.
In conclusion, the general and main difference between Intent and PendingIntent is that by using the first, you want to start / launch / execute something NOW, while by using the second entity you want to execute that something in the future.
Instances of this class are created with getActivity(Context, int, Intent, int), getBroadcast(Context, int, Intent, int), getService (Context, int, Intent, int); the returned object can be handed to other applications so that they can perform the action you described on your behalf at a later time.
A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager, or other 3rd party applications), which allows the foreign application to use your application's permissions to execute a predefined piece of code.
If you give the foreign application an Intent, it will execute your Intent with its own permissions. But if you give the foreign application a PendingIntent, that application will execute your Intent using your application's permission.
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A Pending Intent is a token you give to some app to perform an action on your apps' behalf irrespective of whether your application process is alive or not.
I think the documentation is sufficiently detailed: Pending Intent docs.
Just think of use-cases for Pending Intents like (Broadcasting Intents, scheduling alarms) and the documentation will become clearer and meaningful.
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