项目有时会遇到用UIView 添加动画的情况,这里我觉得在layer上添加动画比较好,因为可以详细地设定动画属性,方便理解
下面是一个旋转动画:
-(void)roundBtnAction:(id)sender {
UIButton * button = (UIButton *)sender;
//Animation自旋转(layer动画):
CABasicAnimation* rotationAnimation;
rotationAnimation = [CABasicAnimation animationWithKeyPath:@"transform.rotation.z"];
rotationAnimation.toValue = [NSNumber numberWithFloat: M_PI * 1 ];
[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
rotationAnimation.duration = 1;
rotationAnimation.repeatCount = 0;//你可以设置到最大的整数值
rotationAnimation.cumulative = NO;
rotationAnimation.removedOnCompletion = NO;
rotationAnimation.fillMode = kCAFillModeForwards;
[button.layer addAnimation:rotationAnimation forKey: @"Rotation"];
}
原文:http://www.cnblogs.com/A--G/p/4679316.html