iOS — 小动画从小到大再返回

gif.gif

 [UIView animateWithDuration:0.5f animations:^{
    giftImage.layer.transform = CATransform3DMakeScale(1, 1, 1);
    } completion:^(BOOL finished) {
        [UIView animateWithDuration:0.5f animations:^{
            giftImage.layer.transform = CATransform3DMakeScale(0.1, 0.1, 1);
            
        } completion:^(BOOL finished) {
            bgView.hidden = YES;
        }];
    }];

触发动画的方法  个人感觉懒加载会好一些 重复创建 移除会影响内存