Android implements methods that close all Activity on exit

This article is an example of Android's ability to turn off all Activity when it exits. The specific methods are as follows:

In general, some Activity may not be closed when Android exits. To close all Activity when Android exits, the following classes are given:

// Shut down Activity The class of 
public class CloseActivityClass{ 
 
  public static List<Activity> activityList = new ArrayList<Activity>();
 
  public static void exitClient(Context ctx)
  {
   //  Close all Activity
   for (int i = 0; i < activityList.size(); i++)
   {
     if (null != activityList.get(i))
     {
       activityList.get(i).finish();
     }
   }
   ActivityManager activityMgr = (ActivityManager) ctx.getSystemService(Context.ACTIVITY_SERVICE );
   activityMgr.restartPackage(ctx.getPackageName());
   System.exit(0);
  }
}

Then add a sentence to each onCreate(Bundle savedInstanceState) method in your application:

CloseActivityClass.activityList.add(this);

At application exit:

CloseActivityClass.exitClient(MainActivity.this);

This way, when you exit the application, you can shut down all Activity for that application.

I believe that this article has a certain reference value for your Android programming.