Kill another process/application programmatically [duplicate]

Answer 1

You can use the killBackgroundProcesses() method of ActivityManager:

    ActivityManager am = (ActivityManager) getSystemService(Activity.ACTIVITY_SERVICE);
    am.killBackgroundProcesses(packageName);

Please, note that your app needs to own the KILL_BACKGROUND_PROCESSES permission. Thus, in the AndroidManifest.xml, you need to include:

<uses-permission android:name="android.permission.KILL_BACKGROUND_PROCESSES" />

Answer 2

Suppose you have launched activities in the order A -> B -> C -> D with A as your main and launcher activity.

You can not even kill your application's process by calling Process.KillProcess(int pid) method in your D activity. You need to kill each activity D - C - B - A (in reverse order) to kill the process.

So killing other application processes is out of the question.

Answer 3

Try android.os.Process:

void killMyProcess() {
    android.os.Process.killProcess(android.os.Process.myPid());
}

As it implies from the method name, you can only kill your own process by using this approach.