微博点赞动画图标放大缩回去

-(void)praiseAnimateWithView:(UIView *)view{    [UIView animateWithDuration:0.25 animations:^{        view.transform = CGAffineTransformMakeScale(1.2, 1.2); //放大    } completion:^(BOOL finished) {        [UIView animateWithDuration:0.25 animations:^{            view.transform = CGAffineTransformMakeScale(0.9, 0.9); //缩小        } completion:^(BOOL finished) {            [UIView animateWithDuration:0.25 animations:^{                view.transform = CGAffineTransformMakeScale(1.0, 1.0); //正常            } completion:^(BOOL finished) {                            }];        }];    }];}