如何为路径上的contentsRect属性设置动画？
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我有一个png Sprite工作表和相应的plist文件，我正在尝试为CALayer的contentsRect属性设置动画，以显示上述aprite工作表中的sprite动画。这是一个代码：
CGFloat width = myLayer.frame.size.width;
CGFloat height = myLayer.frame.size.height;
myLayer.bounds = CGRectMake( 0, 0, width, height );
myLayer.contentsGravity = kCAGravityCenter;
myLayer.contents=(id)pImage; // This is my sprite sheet
CAKeyframeAnimation *keyFrameContentsRectAnimation = [CAKeyframeAnimation animationWithKeyPath:@\"contentsRect\"];
keyFrameContentsRectAnimation.path = pAnimationPath; // This is a path to animate on
keyFrameContentsRectAnimation.values = pRects; // This is an array of normalized CGRects representing sprite sheet
keyFrameContentsRectAnimation.fillMode = kCAFillModeRemoved;
keyFrameContentsRectAnimation.calculationMode = kCAAnimationDiscrete;
keyFrameContentsRectAnimation.duration=pAnimationDuration;
keyFrameContentsRectAnimation.repeatCount = 1;
没有找到相关结果
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芯伶句餐绕
myLayer.bounds = CGRectMake( 0, 0, 256.0, 256.0 ); //my sprite dimentions myLayer.contentsGravity = kCAGravityCenter; myLayer.contents=(id)pImage; // This is my sprite sheet CAKeyframeAnimation *keyFrameContentsRectAnimation = [CAKeyframeAnimation animationWithKeyPath:@\"contentsRect\"]; keyFrameContentsRectAnimation.values = pRects; // This is an array of normalized CGRects representing sprite sheet keyFrameContentsRectAnimation.fillMode = kCAFillModeRemoved; keyFrameContentsRectAnimation.calculationMode = kCAAnimationDiscrete; keyFrameContentsRectAnimation.duration=pAnimationDuration; keyFrameContentsRectAnimation.repeatCount = 1; CAKeyframeAnimation* kfanim = [CAKeyframeAnimation animationWithKeyPath:@\"contents\"]; kfanim.path = pAnimationPath; kfanim.values = pRects; kfanim.fillMode = kCAFillModeBoth; kfanim.calculationMode = kCAAnimationDiscrete; kfanim.duration=pAnimationDuration; kfanim.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionLinear]; NSArray *animations = [NSArray arrayWithObjects:keyFrameContentsRectAnimation, kfanim, nil]; CAAnimationGroup *animationGroup = [CAAnimationGroup animation]; [animationGroup setDuration:pAnimationDuration]; [animationGroup setRepeatCount: 1]; [animationGroup setAnimations:animations];