Calling the finish() method of an Activity from a BroadcastReceiver

问题

I have 2 Activities (Activity1, Activity2) and a BroadcastReceiver class

Assume that we are now on Activity2, where I set up an AlarmManager to run at a specific time.

Is there a way to call the finish() method of Activity2 within the onReceive() of the BroadcastReceiver?

My goal is to return to Activity1 from Activity2 without starting a new Intent in onRecieve().

Note: The BroadcastReceiver class is not registered within the Activity of Activity2. It is registered in the AndroidManifest.xml.

回答1:

You can call finish() on the onReceive method. Do remember to unregister your listener on the OnDestroy. If Activity1 has already been initialized Android will activate Activity1. I am assuming you are opening the activities in a sequence.

回答2:

You can use Activity2class.finish();

来源：https://stackoverflow.com/questions/5153630/calling-the-finish-method-of-an-activity-from-a-broadcastreceiver