如何在标题更改时停止不需要的 UIButton 动画? [英] How to stop unwanted UIButton animation on title change?

问题描述

在 iOS 7 中，我的 UIButton 标题在错误的时间进出动画 - 晚了.这个问题在iOS 6上不会出现.我只是在使用:

In iOS 7 my UIButton titles are animating in and out at the wrong time - late. This problem does not appear on iOS 6. I'm just using:

[self setTitle:text forState:UIControlStateNormal];

我希望这会立即发生并且没有空白帧.这种眨眼会特别分散注意力，并且会分散人们对其他动画的注意力.

I would prefer this happens instantly and without a blank frame. This blink is especially distracting and draws attention away from other animations.

推荐答案

这适用于自定义按钮:

[UIView setAnimationsEnabled:NO];
[_button setTitle:@"title" forState:UIControlStateNormal];
[UIView setAnimationsEnabled:YES];

对于系统按钮，您需要在重新启用动画之前添加它(谢谢@Klaas):

For system buttons you need to add this before re-enabling animations (thank you @Klaas):

[_button layoutIfNeeded];

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