ios - In what case that application:didFinishLaunchingWithOptions: been called? -


my app voip,and can run in background. when runs long time in background, `application:didfinishlaunchingwithoptions:' method called , app stop running.i want know :whey voip app run in background ,the application:didfinishlaunchingwithoptions method been called? , if method been called,what should make app keep running? can body help?thank you...

i guessing think application may receiving memory warnings. , application:didfinishlaunchingwithoptions: called once each run of application . try investigate overriding - (void)applicationdidreceivememorywarning:(uiapplication *)application method in app delegate . may reason of crashing.


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