我的 UIView 动画有什么问题？

Question

我正在尝试通过 3 个步骤创建动画。第一步应该在放大的图片上向右移动一点。第二步是在 3 秒内将效果放大到其他图片。最后一步是在 3 秒内再次缩小不同的图片。我完全按照我的意愿执行了前两个步骤，但是当我添加 3. 步骤时出了点问题。就像它试图同时执行 2. 和 3. 步骤一样。请帮我。这是我的代码。

imgAnimationBase.image = [UIImage imageNamed:@"animation-1.jpg"];

imgAnimationBase.alpha = 1.0;
imgAnimationBase.transform =CGAffineTransformMakeScale(1.5,1.5);
imgAnimationBase.frame=CGRectMake(20, imgAnimationBase.frame.origin.y, imgAnimationBase.frame.size.width, imgAnimationBase.frame.size.height);

[UIView transitionWithView:imgAnimationBase
   duration:3.0f
    options:UIViewAnimationOptionTransitionCrossDissolve
 animations:^{
     imgAnimationBase.frame=CGRectMake(-110, imgAnimationBase.frame.origin.y, imgAnimationBase.frame.size.width, imgAnimationBase.frame.size.height);
 }
           completion:^(BOOL finished) {

               imgAnimationBase.transform =CGAffineTransformMakeScale(1,1);
               imgAnimationBase.frame=CGRectMake(10, imgAnimationBase.frame.origin.y, imgAnimationBase.frame.size.width, imgAnimationBase.frame.size.height);
               [UIView transitionWithView:imgAnimationBase
                                 duration:3.0f
                                  options:NO
                               animations:^{
                                   imgAnimationBase.image = [UIImage imageNamed:@"animation-2.jpg"];
                                   [UIView animateWithDuration:3.0 animations:^{
                                           imgAnimationBase.alpha = 1.0;
                                           imgAnimationBase.transform =CGAffineTransformMakeScale(2,2);

                                   }];

                               }
                                         completion:^(BOOL finished) {



                                             [UIView transitionWithView:imgAnimationBase
                                                               duration:3.0f
                                                                options:NO
                                                             animations:^{
                                                                 imgAnimationBase.image = [UIImage imageNamed:@"animation-3.jpg"];
                                                                 [UIView animateWithDuration:3.0 animations:^{

                                                                     imgAnimationBase.alpha = 1.0;
                                                                     imgAnimationBase.transform =CGAffineTransformMakeScale(1,1);
                                                                 }];

                                                             }
                                                             completion:^(BOOL finished) {

                                                             }];
                                         }];
               }];

Answer 1

如评论中所述 - 当您已经在 animations 块中时，无需第二次调用 [UIView animateWithDuration: animations:]。

我的 UIView 动画有什么问题？

What is wrong with my UIView Animation?

objective-c

uiviewanimation

ios