I have some code in my AppDelegate’s applicationWillTerminate: method but I don’t know how to test if it works. Using Xcode to stop the simulator d
AppDelegate
applicationWillTerminate:
In iOS 9.1 (perhaps before) this only seems to work if you double click home and drag the app up so it exits. Doing it from the desktop doesn't fire this event, it has to happen while the app is open in the simulator.