更改标签与动画帧的大小 [英] Change size of label's frame with animation

问题描述

我想知道是否有一个流畅的动画效果来更改标签的架的宽度（不fontSize的或东西）的方式。

I would like to know if there is a way to change a label's frame's width (not the fontSize or something) with a smooth animation.

我已经尝试过以下，即没有（明显）不工作：

I already tried the following, that did (obviously) not work:

_myLabel.frame = CGRectMake(139,193,42,21);

[UIView animateWithDuration:1 animations:^ {
    _myLabel.frame = CGRectMake(139, 193, 100, 21);
} completion:^(BOOL finished) {
}];

那么，运行该code是它改变了宽度预期，但没有任何动画完成后，基本上发生了。

So what basically happened after running this code was that it changed the width as expected but without any animation.

任何想法？

推荐答案

您不能更改标签的帧大小...
可以达到正确的动画行为..设置label.contentMode = UIViewContentModeCenter但它看起来丑陋

You can't change the frame size of labels... You can reach correct animation behavior.. set label.contentMode = UIViewContentModeCenter but it looks ugly

但你可以...

• 变化的范围，而不是框架 http://stackoverflow.com/a/330​​4220


• 添加的UIView，然后添加的UILabel作为其子视图和动画的UIView http://stackoverflow.com/a/15639093 并 http://stackoverflow.com/a/22224630


• 使用一个CGAffineTransform要做到这一点，但有一些丑陋的副作用，如扭曲了标签上的文本 http://stackoverflow.com/a/ 13066366


• 改变的UILabel的字体与变换动画动画效果的UILabel字体大小更改

• change is the bounds, rather than the frame http://stackoverflow.com/a/3304220
• add an UIView and then add UILabel as its subview and animate UIView http://stackoverflow.com/a/15639093 and http://stackoverflow.com/a/22224630
• Use a CGAffineTransform to do this but have some ugly side effects like distorting the text on the label http://stackoverflow.com/a/13066366
• change the font of UILabel with transform Animation Animating UILabel Font Size Change

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