UIButton 不会变灰-移动开发问题

UIButton won#39;t gray out(UIButton 不会变灰)

本文介绍了UIButton 不会变灰的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

UIButton 不应该在 enabled=NO 时变成灰色/灰色吗?

Isn't UIButton supposed to become grayish/grayer when enabled=NO ?

我在黑色背景上有一个简单的 UIButton(没有自定义图像，没有自定义任何内容，只是用 IB 拖动它并更改了大小和标题).

I have a simple UIButton on a blackbackground (no custom images, no custom nothing, just dragged it with IB and changed size and title).

当我以编程方式将其设置为禁用时，它会保持白色！

And when I set it programatically to become disabled it stays white as hell!

现在我正在使用一个小的愚蠢的解决方法:隐藏的 blackbg 0,5 alpha UIView on the button that become hidden=NO 当我需要禁用按钮时......但我想正确设置按钮...

For now I'm using a small stupid workaround: hidden blackbg 0,5 alpha UIView on top of the button that becomes hidden=NO when I need to disable the button... but I would like to set the button properly...

有什么想法吗?

推荐答案

没有办法让 UIButton 变灰".但是你可以使用这个技巧:

There is no way to make a UIButton "grayer". But you can use that trick :

UIButton *myButton;
myButton.alpha = 0.4;
myButton.enabled = NO;

所以你的 UIButton 看起来无法使用；)

So your UIButton looks like unusable ;)

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