I have the following CALayer: CAGradientLayer *gradient = [CAGradientLayer layer]; gradient.frame = CGRectMake(8, 57, 296, 30);
I\'m creating the flip animation library. In two words, I create the CALayer a开发者_StackOverflow社区nd rotate it using CoreAnimation\'s CATransform3DMakeRotation.
After updating to the iOS 4.2 SDK, I receive the following exception in my app: Terminating app due to uncaught exception \'CALayerInvalidGeometry\', reason: \'CALayer position contains NaN: [nan 22]
Re-asking the question: When you add an animation for the contents key, a CATransitionAnimation is apparently being triggered that fades the original contents property to the first value in the anima
I am pu开发者_如何学编程tting together a 2d RPG in Cocoa just for learning and for fun. I\'ve got the sprite moving around and animating just fine... but not sure how to approach making obstacles. Ta
I play a video with AVPlayer. It works ok. Now I want to get a UIImage from the video playing (when I push a button for the moment).
I have a NSView that\'s hosting a CALayer. When the NSView overlaps with the window\'s grow box the grow box no longer draws.
I have a view.this view has a wheel in the middle.it also supports iAds and auto rotation.so whenever an ad pops in the top, or the device rotates, the wheel automatically repositions itself to the ce
I would like to h开发者_JAVA百科ave a 3d look, even if it is a light 3d look to some text and borders that I am doing with Core Animation.
I\'m trying to write a game and I\'m a bit stuck with this animation. I have a ball that is animating horizontally in my screen. Here is the code:
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