How can I manage OnApp exit event and do something before app closes?

Question

I have to send some requests to my server before app exits.

But as my app close all asynctasks are killed and the requests aren't being sent to my web service.

Can you please specify better what you mean for 'app exits'? You mean all activities are destroyed? — Mimmo Grottoli, Jul 22 '15 at 14:47
@MimmoGrottoli : no, just wanna find out when my app closes so that i can have some communication with web. — Mahdi, Jul 23 '15 at 19:03
@Asthme : am i right? you say i put onTerminate in my application class and write my code before it's super. but it doesn't work. — Mahdi, Jul 23 '15 at 19:18
@Asthme It will never be called on a production Android device, where processes are removed by simply killing them; no user code (including this callback) is executed when doing so. — Ketan Ahir, Aug 04 '15 at 08:20

Mahdi · Accepted Answer · 2018-03-09T15:27:34.217

I finally solve this by put exit function in my main activity and passing and extra so it can find out I open it for closing whole app. this is very good solution.

call main activity like this:

Intent i = new Intent(G.currentActivity, MainActivity.class);
        i.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        i.putExtra("isExit", true);

and get extra like this:

private void getExtras() {
Intent myIntent = getIntent();
if (myIntent.getBooleanExtra("isExit", false)) {
    showExitDialog(MainActivity.this);
    }
  }

Update: It can be handled better with Eventbus. I have main activity that loads fragments with ChangePageEventMessage event that contains eventType that Enum.

public onEvent(ChangePageEventMessage event){
    switch(event.getType()){
       case appExit: dosomething();
                     System.exit(0);
                     break;
       case detail:
.
.
.
.

    }
}

score 0 · Answer 2 · edited May 23 '17 at 12:07

0

Make a YourBasicActivity and override its OnPause() method and extend every Activity from YourBasicActivity

Run code when Android app is closed/sent to background

You can also try onTaskRemoved

How to detect application exit on android?

edited May 23 '17 at 12:07

Community

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answered Jul 22 '15 at 22:31

StephenG

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unfortunately it works on any of my activities finishes. I like to do on whole app exit. what is the solution? – Mahdi Jul 23 '15 at 18:58
in baseActivity or in Application? – Mahdi Jul 23 '15 at 19:06
there is no background service to add onTaskRemoved – Mahdi Jul 23 '15 at 19:23

How can I manage OnApp exit event and do something before app closes?

2 Answers2