In Android, all programs are actually exited.

Http://www.cnblogs.com/jauntlin/archive/2011/05/28/2060712.html

Sometimes our software interface has an exit function and cannot use finish () in the activity. Because sometimes your application has multiple activities, I searched for how to completely exit the application on the Internet, there are three methods:

1. Use the killbackgroundprocesses method of activitymanager. This method also requires application permissions, which are not used in all SDK versions. The related code is as follows:

Activitymanager manager = (activitymanager) Context. getsystemservice (context. activity_service );
Manager. killbackgroundprocesses ("package ");

2 kill the process:

Use Android. OS. process. killprocess (Android. OS. process. mypid (); or system. Exit (0 );

3. Use the restartpackage method of activitymanager:

Manager. restartpackage ("package ");

I don't know why, but I was not successful. Later I used the broadcast mechanism. If a friend of mine is the same as me, the above methods would not work. I tried the broadcast mechanism and didn't need any permissions. Practices:

1. Write a parent class to inherit activity. Other activities inherit this parent class. The two important methods are as follows:

private BroadcastReceiver broadcastReceiver = new BroadcastReceiver()

{

@Override

public void onReceive(Context arg0, Intent arg1) {

// TODO Auto-generated method stub

finish();

}

};

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

IntentFilter filter = new IntentFilter();

filter.addAction("ExitApp");

this.registerReceiver(broadcastReceiver, filter);

}

Of course, you can also write the above code for each activity.

1. Add the following method to the activity to exit:

// Send a broadcast notification to close all forms

public void close()

{

Intent intent = new Intent();

intent.setAction("ExitApp");

this.sendBroadcast(intent);

super.finish();

}

You can call this operation to exit.