how to prevent activity from stopping?

Question

i need to do a long time job (updating a lot of sql tables) in onstop override of an activity but when i close that activity my apps stops working for several seconds . i tried to use AsyncTask but in that time i get error an error for dialog.dismiss() method in onPostExecute that it says can't attach the dialog to the window ! also i have tried to use services but this method have to be called several times and starting and stopping that service each time didn't work correctly !

i am just mixed up! could you help me with this plz! thanks in advance! :)

Answer 1

IntentService is perfect for such tasks:

http://developer.android.com/reference/android/app/IntentService.html

i have tried to use services but this method have to be called several times and starting and stopping that service each time didn't work correctly !

you simply send jobs to your IntentService, it will take care of initialization and destruction, no need to implement full blown Service.