iOS 更改动态 UIActionsheet 按钮的颜色

Question

我制作了如下动态 uiactionsheet:

- (IBAction)selectCity
{
    UIActionSheet *actionSheet = [[UIActionSheet alloc] initWithTitle:kCityActionSheetTitle
                                                             delegate:self
                                                    cancelButtonTitle:nil
                                               destructiveButtonTitle:nil
                                                    otherButtonTitles:nil];
    for (NSString * cityNameNSS in [_cityNamesAndUrlsNSMD allKeys]) {
        [actionSheet addButtonWithTitle:cityNameNSS];
    }
    [actionSheet addButtonWithTitle:kCancellButtonTitle];
    actionSheet.cancelButtonIndex = [[_cityNamesAndUrlsNSMD allKeys] count];
    actionSheet.tag = 2;
    [actionSheet showInView:[UIApplication sharedApplication].keyWindow];

}

我想更改 uiactionsheet 按钮的色调。因此我写道:

- (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{
    for (UIView *subview in actionSheet.subviews) {

        if ([subview isKindOfClass:[UIButton class]]) {
            UIButton *button = (UIButton *)subview;
            [button setTitleColor:[UIColor colorWithRed:0.0/255.0 green:150.0/255.0 blue:94.0/255.0 alpha:1.0]
                         forState:UIControlStateNormal];
        }
        else if([subview isKindOfClass:[UILabel class]]){
            UILabel *label = (UILabel *)subview;
            [label setTextColor:[UIColor colorWithRed:0.0/255.0 green:150.0/255.0 blue:94.0/255.0 alpha:1.0]];

        }
    }
}

但是，只有在这种情况下(在动态 uiactionsheet 中)，按钮颜色不会改变。我在同一个 Controller 中有其他 uiactionssheet，它们正在改变颜色。

可能的问题/解决方案是什么？

Answer 1

请为您的按钮添加标签

 - (void)willPresentActionSheet:(UIActionSheet *)actionSheet
{
   for (UIView *subview in actionSheet.subviews)
   {
     if ([subview isKindOfClass:[UIButton class]])
     {
       if (subview.tag == 3)
        {
         NSLog(@"ButtonIndex===%d",subview.tag);
        UIButton *button = (UIButton *)subview;
        [button setTitleColor:[UIColor colorWithRed:0.0/255.0 green:150.0/255.0 blue:94.0/255.0 alpha:1.0]
                     forState:UIControlStateNormal];


        }
      }
  }
}