关于UILabel和UIButton有的时候需要添加下划线,一般有两种方式通过默认的NSMutableAttributedString设置,第二种就是在drawRect中画一条下划线,本文就简单的选择第一种,第二种有兴趣的可以自己研究一下。
UILabel设置下划线:
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UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(10, 100, 310, 50)]; label.backgroundColor = [UIColor redColor]; [label setLineBreakMode: NSLineBreakByWordWrapping ];
label.numberOfLines =3; [label setFont:[UIFont systemFontOfSize:14]]; NSMutableAttributedString *content = [[ NSMutableAttributedString alloc]initWithString:[ NSString stringWithFormat:@ "博文地址:http://www.cnblogs.com/xiaofeixiang 博客园-FlyElephant QQ群:228407086" ]];
NSRange contentRange = {0,[content length]};
[content addAttribute: NSUnderlineStyleAttributeName value:[ NSNumber numberWithInteger: NSUnderlineStyleSingle ] range:contentRange];
label.attributedText = content; [ self .view addSubview:label];
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UIButton设置下划线:
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UIButton *button=[[UIButton alloc]initWithFrame:CGRectMake(10, 200, 80, 30)]; NSMutableAttributedString *title = [[ NSMutableAttributedString alloc] initWithString:@ "FlyElephant" ];
NSRange titleRange = {0,[title length]};
[title addAttribute: NSUnderlineStyleAttributeName value:[ NSNumber numberWithInteger: NSUnderlineStyleSingle ] range:titleRange];
[button setAttributedTitle:title
forState:UIControlStateNormal];
[button setBackgroundColor:[UIColor redColor]];
[button.titleLabel setFont:[UIFont systemFontOfSize:14]];
[ self .view addSubview:button];
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最终效果如下:
本文转自Fly_Elephant博客园博客,原文链接:http://www.cnblogs.com/xiaofeixiang/p/4582292.html,如需转载请自行联系原作者