Question

我正在尝试用3个步骤创建动画。第一步应该在缩放的图片上向右移动一点点。第二步是在3秒内放大效果到其他图片。最后一步是再次使用不同的图片在3秒内缩小。我完全按照我的要求完成了前两个步骤，但是当我添加3.步骤时出错了。它就像它试图做2.和3.一起做的步骤。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

正如评论中所述 - 当您已经在[UIView animateWithDuration: animations:]区块时，无需再次拨打animations。

我的UIView动画有什么问题？

1 个答案: