ios 更改 UIActionSheet 按钮中的文本颜色

Change text color in UIActionSheet buttons

提问by kiri

In my project, I am using UIActionSheetfor displaying for some sorting type. I want to change the color of the text displayed in the action sheet buttons. How can we change the text color?

在我的项目中，我UIActionSheet用于显示某种排序类型。我想更改操作表按钮中显示的文本颜色。我们如何更改文本颜色？

回答by jrc

iOS 8:UIActionSheetis deprecated. UIAlertControllerrespects -[UIView tintColor], so this works:

iOS 8：UIActionSheet已弃用。UIAlertController尊重-[UIView tintColor]，所以这有效：

alertController.view.tintColor = [UIColor redColor];

Better yet, set the whole window's tint color in your application delegate:

更好的是，在您的应用程序委托中设置整个窗口的色调：

self.window.tintColor = [UIColor redColor];

iOS 7:In your action sheet delegate, implement -willPresentActionSheet:as follows:

iOS 7：在您的操作表委托中，实现-willPresentActionSheet:如下：

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{
    for (UIView *subview in actionSheet.subviews) {
        if ([subview isKindOfClass:[UIButton class]]) {
            UIButton *button = (UIButton *)subview;
            [button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
        }
    }
}

回答by lifjoy

In iOS 8, none of this works anymore. UIActionSheet text seems to get its color from window.tintColor.

在 iOS 8 中，这些都不再起作用了。UIActionSheet 文本似乎从 window.tintColor 获取其颜色。

回答by blacksheep_2011

This works for me in iOS8

这在 iOS8 中对我有用

[[UIView appearanceWhenContainedIn:[UIAlertController class], nil] setTintColor:[UIColor redColor]];

回答by Jonathan

If ever you want to go through the UIActionSheet's subviews, you should not directly set the text color of the UILabelbut use the UIButtonsetTitleColor:forStatemethod instead. Otherwise, the initial color will be set back upon events like UIControlEventTouchDragOutside for example.

如果您想查看UIActionSheet的子视图，则不应直接设置 的文本颜色，UILabel而应使用UIButtonsetTitleColor:forState方法。否则，初始颜色将在 UIControlEventTouchDragOutside 等事件时重新设置。

Here is the proper way to do it, reusing the jrc's code:

这是正确的方法，重用 jrc 的代码：

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{
    for (UIView *subview in actionSheet.subviews) {
        if ([subview isKindOfClass:[UIButton class]]) {
            UIButton *button = (UIButton *)subview;
            [button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];
        }
    }
}

回答by Julius

May be a late answer but I figure it could help someone.

可能是一个迟到的答案，但我认为它可以帮助某人。

iOS 8:You could simply initialize your UIAlertAction with the style: UIAlertActionStyleDestructivelike so:

iOS 8：您可以简单地使用样式初始化 UIAlertAction：UIAlertActionStyleDestructive，如下所示：

UIAlertAction *delete = [UIAlertAction actionWithTitle:@"Delete" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action){

   // your code in here   

}];

This will make the button's text red by default.

这将使按钮的文本默认为红色。

回答by Asif

To change particular buttons colour in alert action use this

要更改警报操作中的特定按钮颜色，请使用此

let cancelAction = UIAlertAction(title: "Success", style: .cancel, handler: nil)
cancelAction.setValue(UIColor.green, forKey: "titleTextColor")

回答by kubacizek

Soulution for Swift 3. Changes all colors.

Soulution的斯威夫特3。改变所有颜色。

UIView.appearance(whenContainedInInstancesOf: [UIAlertController.self]).tintColor = .yellow

回答by seufagner

@jrc solution works, but titleLabel color changes when you tap the button. Try this to keep the same color at all states.

@jrc 解决方案有效，但当您点击按钮时 titleLabel 颜色会发生变化。尝试这样做以在所有状态下保持相同的颜色。

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{     
 UIColor *customTitleColor = [UIColor greenColor];
      for (UIView *subview in actionSheet.subviews) {
        if ([subview isKindOfClass:[UIButton class]]) {
          UIButton *button = (UIButton *)subview;

          [button setTitleColor:customTitleColor forState:UIControlStateHighlighted];
          [button setTitleColor:customTitleColor forState:UIControlStateNormal];
          [button setTitleColor:customTitleColor forState:UIControlStateSelected];
        }
      }
}

回答by Ravish

use this for ios 8 and above

将此用于 ios 8 及更高版本

SEL selector = NSSelectorFromString(@"_alertController");
if ([actionSheet respondsToSelector:selector])
{
    UIAlertController *alertController = [actionSheet valueForKey:@"_alertController"];
    if ([alertController isKindOfClass:[UIAlertController class]])
    {
        alertController.view.tintColor = [UIColor blueColor];
    }
}
else
{
    // use other methods for iOS 7 or older.
}

回答by alexcristea

EDIT

编辑

Here is a similar question: How to customize Buttons in UIActionSheet?

这是一个类似的问题：如何在 UIActionSheet 中自定义按钮？

Try to use the appearanceprotocol [NOT WORKING]

尝试使用appearance协议 [不工作]

 UIButton *btn = [UIButton appearanceWhenContainedIn:[UIActionSheet class], nil];
 [btn setTitleColor:[UIColor redColor] forState:UIControlStateNormal];