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I manage an ONGOING notification from my application (not from a service). When I kill application from task manager with "End" button, notification disappear . When I remove application from multitask pannel, application is killed but notification remains . My questions are: How to catch this event to clear notification? What happens when application is removed from multitask pannel? Application is destroyed but process staying alive? Is it normal? As an update: All my activities extends MyActivity class (which extends Activity) with methods: @Override protected void onCreate(Bundle state) { super.onCreate(state); ((MyApplication) getApplication()).onActivityCreate(this, state); } @Override protected void onDestroy() { super.onDestroy(); ((MyApplication) getApplication()).onActivityDestroy(this); } And my application extends MyApplication class (which extends Application) with methods: private List<Activity> activities = new ArrayList<Activity>(); protected final void onActivityCreate(Activity activity, Bundle state) { if(activities.isEmpty() && state == null) { onStart(); } activities.add(activity); } protected final void onActivityDestroy(Activity activity) { activities.remove(activity); if(activities.isEmpty() && activity.isFinishing()) { onExit(); } } protected void onStart() { // some code } protected void onExit() { // some code notificationManager.cancel(NOTIFICATION_ID); } activities is a list of all running activities It's not simplest mechanism but I need it Should I use a service instead? As a new update: In my onExit() method, if I Log debug message to know what happens like this: public void onE

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