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标题: ios - 使用自动布局或 layoutMargins 向 UILabel 添加填充？ [打印本页]

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作者: 菜鸟教程小白    时间: 2022-12-12 12:41
标题: ios - 使用自动布局或 layoutMargins 向 UILabel 添加填充？

这个问题在这里已经有了答案:

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Best Answer-推荐答案

如果我是你，我会继承 UILabel 并添加 UIEdgeInsets。在您的 UILabel 子类中执行以下操作:

.m 文件

    - (id)initWithFrameCGRect)frame
    {
        self = [super initWithFrame:frame];

        if (self){

             //Property in the header file so we can add custom insets per instance of this class 
                self.edgeInsets = UIEdgeInsetsMake(0, 0, 0, 0);
        }

        return self;
    }



    -(void)drawTextInRectCGRect)rect
    {
        [super drawTextInRect:UIEdgeInsetsInsetRect(rect, self.edgeInsets)];
    }

/* So that it will also work with auto layout */ 
    -(CGSize)intrinsicContentSize
    {
        CGSize size = [super intrinsicContentSize];
        size.width += self.edgeInsets.left + self.edgeInsets.right;
        size.height += self.edgeInsets.top + self.edgeInsets.bottom;

        if (self.numberOfLines == 0){

             //There is a bug where intrinsice content
             //size may be 1 point too short

              size.height += 1;
           }

        return size;
    }

关于ios - 使用自动布局或 layoutMargins 向 UILabel 添加填充？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26879944/

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