UIView 动画无法调整视图大小 [英] UIView Animation not working to resize view

问题描述

我正在使用以下代码为 selectionMoreOptionView 的外观设置动画

I am using following code to animate the appearance of selectionMoreOptionView

[selectionMoreOptionView setFrame:CGRectMake(974, 56, 50, 0)];
[self.view insertSubview:selectionMoreOptionView aboveSubview:lightBoxView];
[lightBoxView setAlpha:0.0];

[UIView animateWithDuration:5.0
                      delay:0.0
                    options:UIViewAnimationOptionCurveLinear
                 animations:^{

                     [lightBoxView setAlpha:0.5];
                     [selectionMoreOptionView setFrame:CGRectMake(974, 56, 50, 100)];

                 } completion:^(BOOL finished) {
                 }];

但它没有动画，而是在没有动画的情况下立即出现.我做错了什么?

But it is not animating instead it just appears at once without animating. What i am doing wrong?

推荐答案

动画工作正常 问题是我在视图中有两个按钮，足够大以覆盖所有视图.未选中视图属性 Clip Subviews.我曾想过当父母调整它的大小时它会自动影响它的孩子，但在某些情况下当父母不剪辑它的子视图时它不会.谢谢大家的回复:)

The animation was working fine the problem was that i had two buttons inside the view big enough to cover all of the view. The views property Clip Subviews was unchecked. I had thought when a parent resizes it effects its child's automatically, but it don't in some cases when parent do not clip its subviews. Thanks everybody for your reply :)

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