iOS layer层的转场动画

layer层的转场动画
直接上代码

- (void)viewDidLoad {    [super viewDidLoad];    self.imageView = [[UIImageView alloc]initWithFrame:self.view.bounds ];    self.imageView.image = [UIImage imageNamed:@"1"];    [self.view addSubview:self.imageView];    UIButton * btn  = [[UIButton alloc]initWithFrame:self.view.bounds];    [self.view addSubview:btn];    [btn addTarget:self action:@selector(btnFun) forControlEvents:UIControlEventTouchDown];    // Do any additional setup after loading the view, typically from a nib.}-(void)btnFun{    CATransition * ca = [CATransition animation];    ca.type = @"rippleEffect";    ca.duration = 1;    [self.view.layer addAnimation:ca forKey:@"ca"];    self.imageView.image = [UIImage imageNamed:@"2"];}

属性 说明 type 动画过渡类型 subtype 动画过度方向 有4种分别是 ： fromLeft, fromRight, fromTop and fromBottom。不是所有的type都有subtype startProgress 动画起点(在整体动画的百分比)，通常不用设置 endProgress 动画终点(在整体动画的百分比) ，通常不用设置 duration 动画执行时间

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type属性值说明