iOS使用CALayer制作动画

iOS使用CALayer制作动画

//创建CATransition对象
CATransition *animation = [CATransition animation];
animation.delegate = self;
//设定动画时间
animation.duration = 1.0;
//设定动画快慢（开始与结束时较慢）
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
//动画种类
animation.type = @"cube";
//设定动画方向
animation.subtype = kCATransitionFromTop;
//动画开始
[[scrollArea layer] addAnimation:animation forKey:@"animation"];