How to exit an Android app programmatically

Question

I am sure this question has been asked number of times because I read a few  My client wants me to put a button into his app where users can click and exit  I have read this and found calling finish   will do it  But  finish is only closing the current running activity right  I have lot of activities so in this case I have to pass each and every activity s instance and finish them or make every activity into Singleton pattern    I also got to know Activity moveTaskToBack true  can get you into the home screen  OK  this is not closing but backgrounding the process  So is this is effective   Which method should I use to close the app completely  Any of above described or any other method other usage of above methods

User · Answer

This can work I tried it too  this finishAffinity

User · Answer

The finishAffinity method  released in API 16  closes all ongoing activities and closes the app   this finishAffinity         Finish this activity as well as all activities immediately below it in the current task that have the same affinity  This is typically used when an application can be launched on to another task  such as from an ACTION VIEW of a content type it understands  and the user has used the up navigation to switch out of the current task and in to its own task  In this case  if the user has navigated down into any other activities of the second application  all of those should be removed from the original task as part of the task switch        Note that this finish does not allow you to deliver results to the previous activity  and an exception will be thrown if you are trying to do so      Since API 21  you can use   finishAndRemoveTask         Finishes all activities in this task and removes it from the recent tasks list    Alternatives   getActivity   finish    System exit 0       int pid   android os Process myPid    android os Process killProcess pid       Process sendSignal Process myPid    Process SIGNAL KILL       Intent i   new Intent context  LoginActivity class   i putExtra EXTRA EXIT  true   i addFlags Intent FLAG ACTIVITY CLEAR TOP   i addFlags Intent FLAG ACTIVITY NEW TASK   i addFlags Intent FLAG ACTIVITY CLEAR TASK   context startActivity i     Source  How to quit android application programmatically   Hope it helps  Good Luck

User · Answer

Try this on a call  I sometimes use it in onClick of a button   Intent intent   new Intent Intent ACTION MAIN   intent addCategory Intent CATEGORY HOME   intent setFlags Intent FLAG ACTIVITY NEW TASK   startActivity intent     It instead of closing your app   opens the dashboard so kind of looks like your app is closed   read this question for more clearity android - exit application code

User · Answer

Override     public void onBackPressed             Intent homeIntent   new Intent Intent ACTION MAIN           homeIntent addCategory  Intent CATEGORY HOME            homeIntent setFlags Intent FLAG ACTIVITY CLEAR TOP           startActivity homeIntent

User · Answer

in the fragment  getActivity   finishAndRemoveTask     in the Activity  finishAndRemoveTask

User · Answer

Intent homeIntent   new Intent Intent ACTION MAIN   homeIntent addCategory  Intent CATEGORY HOME    homeIntent setFlags Intent FLAG ACTIVITY CLEAR TOP   startActivity homeIntent   System exit 1     Use this Code it s much useful  and you can exit all of the activities

User · Answer

Accually there are two possible situations    You may want to exit from the activity Or you want to exit from the application   You can exit from the activity using following code   var intent   new Intent Intent ActionMain   intent AddCategory Intent CategoryHome   intent SetFlags ActivityFlags NewTask   startActivity intent   finish      But this will not kill the underlying activities in the same application  This will just minimize the application   If you want to exit from application use the following code to end its process   android os Process killProcess android os Process myPid        for mono development just use   process KillProcess Process MyPid

User · Answer

Link this method to your quit exit button  public void quitGame View view            if  Build VERSION SDK INT  gt   Build VERSION CODES LOLLIPOP                finishAndRemoveTask              else               finish

User · Answer

Instead of System exit 1  Just use System exit 0

User · Answer

How about this finishAffinity    From the docs      Finish this activity as well as all activities immediately below it in the current task that have the same affinity  This is typically used when an application can be launched on to another task  such as from an ACTION VIEW of a content type it understands  and the user has used the up navigation to switch out of the current task and in to its own task  In this case  if the user has navigated down into any other activities of the second application  all of those should be removed from the original task as part of the task switch    Note that this finish does not allow you to deliver results to the previous activity  and an exception will be thrown if you are trying to do so

User · Answer

If you want to exit from your application  use this code inside your button pressed event   public void onBackPressed       moveTaskToBack true     android os Process killProcess android os Process myPid       System exit 1

User · Answer

Just run the below two lines when you want to exit from the application  android os Process killProcess android os Process myPid     System exit 1

User · Answer

Just call these two functions   finish     moveTaskToBack true

User · Answer

Just call this   finishAffinity

User · Answer

Actually every one is looking for closing the application on an onclick event  wherever may be activity       So guys friends try this code  Put this code on the onclick event   Intent homeIntent   new Intent Intent ACTION MAIN       homeIntent addCategory  Intent CATEGORY HOME        homeIntent setFlags Intent FLAG ACTIVITY CLEAR TOP         startActivity homeIntent

User · Answer

If you use both finish and exit your app will close complitely   finish     System exit 0

User · Answer

ghost activity called with singletop and finish   on onCreate should do the trick

User · Answer

It s way too easy  Use System exit 0

User · Answer

android os Process killProcess android os Process myPid

User · Answer

If someone still wonders  for Xamarin Android  in my case also Monogame running on it  the command FinishAndRemoveTask   on Activity does the job very well

User · Answer

If you are using EventBus  or really any other pub sub library  in your application to communicate between activities you can send them an explicit event   final public class KillItWithFireEvent       public KillItWithFireEvent           public static void send                 EventBus getDefault   post new KillItWithFireEvent               The only downside of this is you need all activities to listen to this event to call their own finish    For this you can easily create shim activity classes through inheritance which just listen to this event and let subclasses implement everything else  then make sure all your activities inherit from this extra layer  The kill listeners could even add some extra functionality through overrides  like avoiding death on certain particular situations

User · Answer

You can call System exit    to get out of all the acivities       submit  Button findViewById R id submit                submit setOnClickListener new OnClickListener                       Override                 public void onClick View arg0    android os Process killProcess android os Process myPid                         System exit 1

User · Answer

this will clear Task stack of activities   and begin new Task   Intent intent   new Intent Intent ACTION MAIN   intent addCategory Intent CATEGORY HOME   intent addFlags Intent FLAG ACTIVITY CLEAR TASK   intent addFlags Intent FLAG ACTIVITY NEW TASK   startActivity intent   System exit 1

User · Answer

Achieving in Xamarin Android       public override void OnBackPressed                 MoveTaskToBack true           Process KillProcess Process MyPid             Environment Exit 1

User · Answer

finish     finishAffinity     System exit 0     worked for me

User · Answer

It works using only moveTaskToBack true

User · Answer

Use this finishAffinity    on that button instead of finish     If it does not work then you can also try by adding android noHistory  true  in your manifest and then finish your activity by uisng finish    or finishAffinity     Hope it helps

User · Answer

just use the code in your backpress                      Intent startMain   new Intent Intent ACTION MAIN                       startMain addCategory Intent CATEGORY HOME                       startMain setFlags Intent FLAG ACTIVITY NEW TASK                       startActivity startMain

User · Answer

put this one into your onClic   moveTaskToBack true       finish

User · Answer

Override     public void onBackPressed             AlertDialog Builder alertDialogBuilder   new AlertDialog Builder this           alertDialogBuilder setTitle  Exit Application             alertDialogBuilder                  setMessage  Click yes to exit                     setCancelable false                   setPositiveButton  Yes                           new DialogInterface OnClickListener                                 public void onClick DialogInterface dialog  int id                                    moveTaskToBack true                                   android os Process killProcess android os Process myPid                                     System exit 1                                                                              setNegativeButton  No   new DialogInterface OnClickListener                         public void onClick DialogInterface dialog  int id                             dialog cancel                                                       AlertDialog alertDialog   alertDialogBuilder create            alertDialog show

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