如何删除带有动画的uiview

Question

我使用以下代码添加了带有一些动画的 UIView：

CGRect a = CGRectMake(10,10,295,460);
UIView *customView = [[UIView alloc]initWithFrame:a];
customView.tag=10;
[self.tableView addSubview:customView];

[UIView animateWithDuration:1.0
                 animations:
 ^{
     customView.transform = CGAffineTransformMakeScale(1.0f, 1.0f);
 }
 ];

当我尝试删除带动画的 UIView 时，动画似乎不起作用。视图只是在没有任何动画的情况下被删除。

这是我必须删除带有动画的 UIView：

UIView *removeView=[self.tableView viewWithTag:10] ;

        removeView .transform = CGAffineTransformMakeScale(1.0f, 1.0f);


        [removeView removeFromSuperview];

[UIView animateWithDuration:1.5
                 animations:
 ^{
     removeView .transform = CGAffineTransformMakeScale(0.0f, 0.0f);
 }
 ];

我尝试在 [removeView removeFromSuperview] 前后放置 [UIView animateWithDuration:1.5 ... 块，但 none 给了我动画。请帮我解决这个问题。

Answer 1

[UIView animateWithDuration:1.5 animations:^ {
     removeView.transform = CGAffineTransformMakeScale(0.0f, 0.0f);
} completion:^(BOOL finished) {
     [removeView removeFromSuperview]; 
}];

Answer 2

尝试等到动画结束后再移除视图：

    [removeView performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:2.0];

Answer 3

一些变化：

UIView *removeView=[self.tableView viewWithTag:10] ;

    removeView .transform = CGAffineTransformMakeScale(1.0f, 1.0f);

    [removeView performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:1.5];

    [UIView animateWithDuration:1.5
                     animations:
     ^{
         removeView .transform = CGAffineTransformMakeScale(0.01f, 0.01f);
     }
     ];

尝试将最终变换设置为小但非零的值。

Answer 4

试试这个，它对我有用：

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:1.5f];
removeView.transform = CGAffineTransformMakeTranslation(removeView.frame.origin.x,1000.0f + (removeView.frame.size.height/2));
aview.alpha = 0;
[UIView commitAnimations];

Answer 5

参考以下来自 Apple 的示例。

[UIView transitionWithView:containerView
           duration:0.2
           options:UIViewAnimationOptionTransitionFlipFromLeft
           animations:^{ [fromView removeFromSuperview]; [containerView addSubview:toView]; }
           completion:NULL];

以上代码为指定的容器视图创建了翻转过渡。在过渡的适当时间点，一个子视图被移除，另一个被添加到容器视图。这使得它看起来好像新视图与新子视图一起翻转到位，但实际上它只是使用新配置动画回到位的相同视图。

可能是您需要管理的动画类型。

参考：- https://developer.apple.com/documentation/uikit/uiview/1622574-transition

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