CABasicAnimation animationWithKeyPath Types
When using the ‘CABasicAnimation’ from the QuartzCore Framework in Objective-C, you have to specify an animationWithKeyPath. This is a long string and is not easily listed in the CABasicAnimation, CAPropertyAnimation, or the CAAnimation class. I ended up finding a handy chart within the Core Animation Programming guide in Apple’s iPhone OS Reference Library. Hope this helps save someone time, at least it will for me.
我们能够通过animationWithKeyPath键值对的方式来改变动画
animationWithKeyPath的值：
transform.scale = 比例轉換
transform.scale.x = 闊的比例轉換
transform.scale.y = 高的比例轉換
transform.rotation.z = 平面圖的旋轉
opacity = 透明度
margin
zPosition
backgroundColor
cornerRadius
borderWidth
framebounds
contents
contentsRect
cornerRadius
hidden
mask
masksToBounds
position
shadowColor
shadowOffset
shadowOpacity
shadowRadius