Android: Toast is not showing before system.exit()

Question

I have nested nested class where I am trying to display a toast for the outer most class before I exit the app. The toast works just fine if I comment out exit statement, so I know I'm accessing the context correctly. I have also tried putting the toast in a thread where it sleeps for 2000 ms (and vice versa for the exit statement), but that still does not work.

All I want to do display a toast and exit the program. (It would be nice to do it simultaneously, if possible...)

    public class A extends Service {


        private Context context;

       //...

        @Override
        public int onStartCommand(Intent intent, int flags, int startId) {

            context = this;
            //...
            return START_STICKY;
        }

        Handler disToast= new Handler(new Callback() {

             @Override
             public boolean handleMessage(Message msg) {
                Toast.makeText(context, "see ya", Toast.LENGTH_SHORT).show();
                return true;//also tried false, but that did not work...
            }
       });

       private Runnable r = new Runnable() {

          public void run() {


        new CountDownTimer(3000, 1000) {

            public void onFinish() {

                Message msg=disToast.obtainMessage();
                msg.obj="my message";
                disToast.sendMessage(msg);

                handler.removeCallbacks(updateTimerThread);
                System.exit(0);
            }
        }.start();//end of inner most class

     };//end of first inner class

 }//outermost class

EDIT** Why all the down votes? I'm not working with any Activities (outer most class is a Service, and the two inner are normal Java classes) so some of the answers (although I very much appropriate the responses) do not work.

@barq Mind telling me what I should use then to terminate the program? — bob dylan, Feb 23 '16 at 06:44
Have a look at http://stackoverflow.com/questions/8149501/how-to-close-the-activity-from-the-service — barq, Feb 23 '16 at 06:45
@MD I get a "cannot resolve method" error when I try that...perhaps because the outer most class is a Service? I'm not sure... — bob dylan, Feb 23 '16 at 06:46

score 2 · Accepted Answer · edited May 23 '17 at 12:01

Thank you all who tried answering this for me, but unfortunately the solutions did not work.

Turns out that I have to do this when I try using Toast within a Service.

Once again, to those who tried answering it: thank you.

To those who down voted my post without stating the reason, next time leave constructive criticism rather than leaving me in the dark. I'm here to learn and I can't learn if you simply down vote with providing a legit reason. I'm not a mind reader.

score 0 · Answer 2 · answered Feb 23 '16 at 06:41

0

USE getApplicationConext() INSTEAD OF CONTEXT

Toast.makeText(getApplicationConext(), "Timer up. Existing app...", Toast.LENGTH_SHORT).show();

answered Feb 23 '16 at 06:41

Bajirao Shinde

1,373
1
18
26

I get a "cannot resolve method" error when I try that...perhaps because the inner most class is not an activity? – bob dylan Feb 23 '16 at 06:44

score 0 · Answer 3 · edited May 23 '17 at 11:46

0

Handler disToast= new Handler(new Callback() {
   @Override 
   public void handleMessage(Message msg) { 
             String mString=(String)msg.obj;
             Toast.makeText(this, mString, Toast.LENGTH_SHORT).show();
          }
});

 private Runnable r = new Runnable() {


    public void run() {


        new CountDownTimer(3000, 1000) {

            public void onFinish() {



            Message msg=disToast.obtainMessage();
            msg.obj="your message";
            disToast.sendMessage(msg);

                handler.removeCallbacks(updateTimerThread);
                System.exit(0);
            }
        }.start();

};

More details Refer Here

edited May 23 '17 at 11:46

Community

1
1

answered Feb 23 '16 at 06:51

sasikumar

11,797
2
26
44

Thanks for the response, I have tried that (with some modifications so it would compile) but it does not work. I have updated my code above... – bob dylan Feb 23 '16 at 07:11
That does not work either, unfortunately. I should also note that the 2nd parameter for makeText gives me an error if its a Message type, rather than a String. – bob dylan Feb 23 '16 at 07:21
Message msg=disToast.obtainMessage(); msg.obj="your message"; disToast.sendMessage(msg); – sasikumar Feb 23 '16 at 07:22
I tried that...did not work. I have updated the code again – bob dylan Feb 23 '16 at 07:25
Thanks for your help, but that does not work either. Also, handleMessage would return a boolean, assuming it is imported from android.os.Handler.Callback; – bob dylan Feb 23 '16 at 07:41

score -1 · Answer 4 · answered Feb 23 '16 at 06:47

-1

please use

Toast.LENGTH_LONG instead of

Toast.LENGTH_SHORT


 Toast.makeText(context, "Timer up. Existing app...", Toast.LENGTH_LONG).show();

Now your toast will be display after System.exit();

answered Feb 23 '16 at 06:47

dipali

10,619
5
24
50

Thank you for the response, but that unfortunately does not work. :( – bob dylan Feb 23 '16 at 06:53

Android: Toast is not showing before system.exit()

4 Answers4

Linked