UIView*view=sender.view; [UIView animateWithDuration:0.1f animations:^{ view.transform=CGAffineTransformMakeScale(0.8, 0.8); } completion:^(BOOL finished) { [UIView animateWithDuration:0.1f animations:^{ view.transform=CGAffineTransformMakeScale(1, 1); } completion:^(BOOL finished) {
原文：http://www.cnblogs.com/huoxingdeguoguo/p/4757883.html