UIAlertController:supportedInterfaceOrientations was invoked recursively

This is a bug in iOS 9 that it failed to retrieve the supportedInterfaceOrientations for UIAlertController. And it seems it dropped to an infinite recursion loop in looking for the supportedInterfaceOrientations for UIAlertController (e.g., it tracks back to UIAlertControler -> UIViewController -> UINavigationController -> UITabBarController -> UIAlertController -> …), while the call to UIAlertController:supportedInterfaceOrientations actually …

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Apple Live Photo file format

A live photo has two resources. They are tied together with an asset identifier (a UUID as a string). A JPEG; this must have a metadata entry for kCGImagePropertyMakerAppleDictionary with [17 : assetIdentifier] (17 is the Apple Maker Note Asset Identifier key). A Quicktime MOV encoded with H.264 at the appropriate framerate (12-15fps) and size …

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UIStackView before iOS 9.0

Check inProject Targets-> Deployment info -> Deployment Target.If it’s not 9.0 change it to 9.0. You need to change the deployment target of your application’s target to iOS 9. Otherwise the app supports down to whatever OS that your deployment target is set to. Not solved?? Check out for other reason??? Check this: If your …

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