边框在视图上重叠：如何设置superview不透明

Question

在我的应用中，

我正在按一个按钮

并在其上添加红色标签作为子视图。

但按钮的边框在边框上重叠，请看图像。

这是我的代码。

类别表示绿色框状按钮

红色框是 UILabel

我想我

 Category *category=[[Category alloc] initWithName:[dict valueForKey:@"category_name"]  identity:[[dict valueForKey:@"category_id"] intValue] imageName:nil];



//Button Formatting.

        [category setBackgroundColor:[UIColor colorWithRed:126.0/255.0 green:187.0/255.0 blue:75.0/255.0 alpha:1.0]];

       [[category layer] setBorderWidth:3.0];
       [[category layer] setBorderColor:[[UIColor grayColor] CGColor]];

            /*Label Formatting.*/
           category.lblimagesCount=[[UILabel alloc] initWithFrame:CGRectMake(category.frame.size.width-22, category.frame.origin.y-18, 26, 26)];

           [category.lblimagesCount setBackgroundColor:[UIColor redColor]];
           [[category.lblimagesCount layer] setBorderWidth:2.0];

           [[category.lblimagesCount layer] setBorderColor:[[UIColor whiteColor] CGColor]];

           [category.lblimagesCount setFont:[UIFont boldSystemFontOfSize:18]];

           [category.lblimagesCount setTextColor:[UIColor whiteColor]]; 
            [[category.lblimagesCount layer] setOpacity:1.0];
           [category.lblimagesCount setTextAlignment:UITextAlignmentCenter];

        [category addSubview:category.lblimagesCount];

        [self.viewHeader addSubview:category];

Answer 1

 category.lblimagesCount.center=CGPointMake(category.frame.origin.x+category.frame.size.width, category.frame.origin.y);

添加此内容并在上一次添加此

[self.viewHeader addSubview:category];
[self.viewHeader addSubview:category.lblimagesCount];

Answer 2

如果你想让redLabel不重叠类别，那么根据“self.view.bounds”这个设置它的Frame，并在类别/ Self

上设置addSubView

Answer 3

尝试

[self.viewHeader bringSubviewToFront:category];

添加为子视图后