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Editorial Team
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Asked: 2026-05-15T04:15:48+00:00

My app is playing a pretty complex animation. It’s like a flipbook. What I

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My app is playing a pretty complex animation. It’s like a flipbook.

What I do is: I have a huge loop with selectors, and after every delayed call the next one is called.

Now someone calls the user and the device suddenly shows up this fat green status bar and maybe some big pick-up-the-phone-call overlay. Or: The alarm clock rings, and a big alert sheet appears in front of just about everything.

It would be great to just pause the whole animation in case of ANY interruption. Probably I’ve also missed like 5 more possible interruptions.

How are you doing that? How do you get notified for all interruptions and then call one single -stopEverything method?

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1 Answer

  1. Editorial Team

    Whenever the app becomes inactive, the UIApplicationWillResignActiveNotification local notification will be posted. In the opposite suituation, the UIApplicationDidBecomeActiveNotification notification will be posted.

    Your animation logic can listen to this and respond appropriately. There is an +setAnimationsEnabled: method to kill all current and future animations, but there isn’t a documented “global pause” method.

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