Hi,
I am working on Gps based application which runs all the time in background. But in extreme low memory case(or when i open many apps) my app is killed by the android system.
I want to relaunch my app when it is killed by android system.I google it for this but don't get any solution.Any help would be appreciated.
Thanks
Hi,
You could try launching a new instance of the app when the onDestroy() function is called. For example:
@Override
public void onDestroy() {
Intent intent = new Intent(Thisclass.this, Thisclass.class);
Thisclass.this.startActivity(intent);
super.onDestroy();
}
Have you done your GPS logic inside a service? The service is one of the last things that will be killed and mostly because it has to be killed to free needed memory.
Maybe your service should create a notification so the user is informed and can restart the app by hand by clicking the notification...
Have you looked at this Activity Lifecycle flowchart? In the case where other applications need memory, onPause() is the last guaranteed thing that happens before your app is stopped or killed. So that is where you would need a notification (as @WarrenFaith says) or another mechanism which could potentially revive your app or at least ping the user to revive it.
Maybe you can make use of intents, send a token out to another listener when this application is being killed by android, so that the other serivce can initiate this activity.
Though I cannot see how this will not be a loop. The way you end your app is very similar to the way android ends your app! so I am pretty sure it will be looping infinitely when you try to end the app, behaving very much like a malware!
I think [startForeground()][1] is what you are looking for. Android won't kill your service, so you don't have to worry about restarting it.
Good luck
Tom
[1]: http://developer.android.com/reference/android/app/Service.html#startForeground(int, android.app.Notification)