How to Kill The Application

1) KILLING THE TASKS  AND KEEPS THE APPLICATION PACKAGE TO RESTART
      ActivityManager am = (ActivityManager) Tracking.this.getSystemService(ACTIVITY_SERVICE);
      List<ActivityManager.RunningTaskInfo> taskInfo = am.getRunningTasks(1);
     ComponentName componentInfo = taskInfo.get(0).topActivity;
     am.restartPackage(componentInfo.getPackageName());
 
2) Calling Home   Activity
    
    Intent in = new Intent(Intent.ACTION_MAIN);
           in.addCategory(Intent.CATEGORY_HOME);
           in.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
           in.setFlags(Intent.FLAG_ACTIVITY_NO_HISTORY);
           startActivity(in);
3)          
           System.exit(0);

4)    Killing the Process by id
android.os.Process.killProcess(android.os.Process.myPid());