持续更新中......

设置label行数为0

  [label setNumberOfLines:0];

准备工作

    NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:string];    NSMutableParagraphStyle *paragraphStyle = [[NSMutableParagraphStyle alloc] init];

调整行间距

[paragraphStyle setLineSpacing:lineSpace];

    设置

    [attributedString addAttribute:NSFontAttributeName                       value:label.font                       range:NSMakeRange(0, string.length)];        [attributedString addAttribute:NSParagraphStyleAttributeName                             value:paragraphStyle                             range:NSMakeRange(0, [string length])];        label.attributedText = attributedString;

    获取label bounds

    CGSize size = [label.attributedText boundingRectWithSize:CGSizeMake(label.frame.size.width, 1000) options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesFontLeading context:nil].size;    label.frame = CGRectMake(label.frame.origin.x, label.frame.origin.y, size.width, size.height);    [label sizeToFit];