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  • UILabel自适应高、宽

    根据Label和字体大小自适应高度

    - (CGFloat)getHeightWithLabel:(UILabel *)label andFontSize:(CGFloat)size
    {
        label.numberOfLines = 0;
        NSMutableAttributedString *labelString = [[NSMutableAttributedString alloc] initWithString:label.text];
        [labelString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:size] range:NSMakeRange(0, [labelString length])];
        CGRect labelStringRect = [labelString boundingRectWithSize:CGSizeMake(label.frame.size.width, 9999) options:NSStringDrawingUsesLineFragmentOrigin context:nil];
        CGRect labelRect = label.frame;
        labelRect.size.height = labelStringRect.size.height;
        label.frame = labelRect;
        label.attributedText = labelString;
        return label.frame.size.height;
    }

    根据Label和字体大小自适应宽度

    - (CGFloat)getWidthWithLabel:(UILabel *)label andFontSize:(CGFloat)size
    {
        label.numberOfLines = 0;
        NSMutableAttributedString *labelString = [[NSMutableAttributedString alloc] initWithString:label.text];
        [labelString addAttribute:NSFontAttributeName value:[UIFont systemFontOfSize:size] range:NSMakeRange(0, [labelString length])];
        CGRect labelStringRect = [labelString boundingRectWithSize:CGSizeMake(9999, label.frame.size.height) options:NSStringDrawingUsesLineFragmentOrigin context:nil];
        CGRect labelRect = label.frame;
        labelRect.size.width = labelStringRect.size.width;
        label.frame = labelRect;
        label.attributedText = labelString;
        return label.frame.size.width;
    }
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  • 原文地址:https://www.cnblogs.com/fanzhiying/p/4826107.html
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