Question

Is there a way to make a difference between the user tapping the home button twice and the user locking the screen? I know that in both cases the app delegate’s method applicationWillResignActive: is called, but I’d like to able to tell exactly which event has happened. Any method to do that? Thank you!

Answer 1

From looking at UIApplicationDelegate Protocol Reference:

applicationWillResignActive:
// Then when its back, this gets called:
applicationDidBecomeActive:

are the only methods that gets called in this situation. So unfortunately, the answer is no, there is no way to tell the difference between locking the device, and double clicking the home button.