如何禁用UIActionSheet中的按钮? [英] How to disable button in UIActionSheet?

问题描述

我需要禁用UIActionSheet中的按钮.经过一些操作后，我需要再次启用它们.所以有办法做到这一点.

I need to disable the buttons in UIActionSheet. after some operations i need to enable them again. So is there a way to do this.

谢谢

推荐答案

这些按钮是UIActionSheet的子视图，其类是UIThreePartButton

Thees buttons are subviews of UIActionSheet and their class is UIThreePartButton

您可以获取它们并做您想要做的所有事情:

You can get them and do all that you want:

UIActionSheet *a = [[UIActionSheet alloc]initWithTitle:@"" delegate: nil cancelButtonTitle: @"c" destructiveButtonTitle: @"d" otherButtonTitles: @"ot", nil];
    [a showInView: window];

    for(UIView *v in [a subviews])
    {
        if([[v description] hasPrefix: @"<UIThreePartButton"] )
        {
            v.hidden = YES;  //hide
           //((UIButton*)v).enabled = NO;   // disable

        }
    }

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