一、代碼如下
@property (weak, nonatomic) IBOutlet UIView *myView;
- (IBAction)show:(id)sender
{
CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
[animation setFromValue:@(1.0f)];//1.縮放的開始值
[animation setToValue:@(0.1f)];//2.所要縮放到的值
[animation setAutoreverses:YES];//3.是否原路返回
[animation setDuration:1.0f];//4.動畫時長
[animation setRepeatDuration:MAXFLOAT];//5.動畫重復(fù)次數(shù)
[self.myView.layer addAnimation:animation forKey:nil];
}
二哪廓、動畫效果
suofang.gif
