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February 26, 2016 14:09
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Bitmask Example for Objective-C
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typedef NS_OPTIONS(NSUInteger, UIViewAnimationOptions) { | |
UIViewAnimationOptionLayoutSubviews = 1 << 0, | |
UIViewAnimationOptionAllowUserInteraction = 1 << 1, // turn on user interaction while animating | |
UIViewAnimationOptionBeginFromCurrentState = 1 << 2, // start all views from current value, not initial value | |
UIViewAnimationOptionRepeat = 1 << 3, // repeat animation indefinitely | |
UIViewAnimationOptionAutoreverse = 1 << 4, // if repeat, run animation back and forth | |
UIViewAnimationOptionOverrideInheritedDuration = 1 << 5, // ignore nested duration | |
UIViewAnimationOptionOverrideInheritedCurve = 1 << 6, // ignore nested curve | |
UIViewAnimationOptionAllowAnimatedContent = 1 << 7, // animate contents (applies to transitions only) | |
UIViewAnimationOptionShowHideTransitionViews = 1 << 8, // flip to/from hidden state instead of adding/removing | |
UIViewAnimationOptionOverrideInheritedOptions = 1 << 9, // do not inherit any options or animation type | |
UIViewAnimationOptionCurveEaseInOut = 0 << 16, // default | |
UIViewAnimationOptionCurveEaseIn = 1 << 16, | |
UIViewAnimationOptionCurveEaseOut = 2 << 16, | |
UIViewAnimationOptionCurveLinear = 3 << 16, | |
UIViewAnimationOptionTransitionNone = 0 << 20, // default | |
UIViewAnimationOptionTransitionFlipFromLeft = 1 << 20, | |
UIViewAnimationOptionTransitionFlipFromRight = 2 << 20, | |
UIViewAnimationOptionTransitionCurlUp = 3 << 20, | |
UIViewAnimationOptionTransitionCurlDown = 4 << 20, | |
UIViewAnimationOptionTransitionCrossDissolve = 5 << 20, | |
UIViewAnimationOptionTransitionFlipFromTop = 6 << 20, | |
UIViewAnimationOptionTransitionFlipFromBottom = 7 << 20, | |
} NS_ENUM_AVAILABLE_IOS(4_0); |
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