Android off App Program

There are about 4 ways to close the Android program:

The first type:

CurrentVersion = Android.os.Build.VERSION. (CurrentVersion > Android.os.Build.VERSION_CODES.) {Intent Startmain = Intent (Intent.) Startmain.addcategory (Intent.) Startmain.setflags (Intent.) StartActivity (Startmain) System. ()} {Activitymanager am = (activitymanager) getsystemservice () Am.restartpackage (Getpackagename ())}

This way of shutting down is what I'm using now, and it feels good to be. And it's all about the program and it's all closed down.

The second type:

             for (Activity activity:activities) { 
       & nbsp;        activity.finish (); 
            } 
             OnDestroy (); 
            system.exit (0);  
  This needs to put all the interfaces in a collection, and when the collection has the same activity there will be problems (of course, this problem can be resolved)

  Third: android.os.process.killprocess (Android.os.Process.myPid ())    //Get pid 
                  system.exit (0);  //Standard exit method for general Java, C #, A return value of 0 indicates normal exit

I don't know how to use it.

The fourth type:

The first step is to show that the method runs on Android 1.5 API level 3 to be able, while requiring permissions

              activitymanager am = ( Activitymanager) Getsystemservice (Context.activity_service);
              am.restartpackage ( Getpackagename ());  
               system will , the package under, all processes, services, all killed, you can kill clean, to pay attention to add  
               <uses-permission android:name=\ "android.permission.restart_packages\" ></uses-permi ssion

I don't know how to use it.

Android off App Program