iOS代码片段（持续更新）

3D动画:

CAKeyframeAnimation * animation; 

animation = [CAKeyframeAnimationanimationWithKeyPath:@"transform"]; 

animation.duration = 0.50; 

animation.delegate = self;

animation.removedOnCompletion =YES;

animation.fillMode =kCAFillModeForwards;

NSMutableArray *values = [NSMutableArrayarray];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(0.1,0.1, 1.0)]];

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(1.2,1.2, 1.0)]]; 

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(0.9,0.9, 0.9)]]; 

[values addObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(1.0,1.0, 1.0)]];

animation.values = values;

[btn.layer addAnimation:animation forKey:nil];