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The state preservation API wasn't added until iOS 6.0 in 2012. https://developer.apple.com/documentation/uikit/uiviewcontroller/restorationidentifier https://d

by mayoff 1y ago

The state preservation API wasn't added until iOS 6.0 in 2012. https://developer.apple.com/documentation/uikit/uiviewcontroller/restorationidentifier https://developer.apple.com/documentation/uikit/uiviewcontro...

kccqzy 1y ago
That's just an improved API introduced in iOS 6.0. Here's another earlier API that's available since iOS 2.0: https://developer.apple.com/documentation/uikit/uiviewcontrollerrestoration/viewcontroller(withrestorationidentifierpath:coder:)?language=objc https://developer.apple.com/documentation/uikit/uiviewcontro...