個(gè)人博客: LiCheng的博客

引言:

當(dāng)我們?cè)谧鲆恍┵徫镱怉PP或者是商品展示類的APP時(shí)，我們經(jīng)常會(huì)遇到某種商品打折優(yōu)惠或者搶購的場(chǎng)景。并且為了吸引客戶，商家一般把打折商品的現(xiàn)價(jià)和原價(jià)同時(shí)顯示出來，進(jìn)行對(duì)比，此時(shí)就出現(xiàn)了為展示原價(jià)的label添加中劃線或者是下劃線的需求。
我們參考一下驢媽媽的首頁：

驢媽媽首頁－中劃線

下面就直接上代碼了：

添加中劃線:

  UILabel * strikeLabel = [[UILabel alloc] initWithFrame:(CGRectMake(10, 10, 50, 30))];
  NSString *textStr = [NSString stringWithFormat:@"%@元", primeCost];

  //中劃線
  NSDictionary *attribtDic = @{NSStrikethroughStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
  NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:textStr attributes:attribtDic];
        
  // 賦值
  strikeLabel.attributedText = attribtStr;

  [self.view addSubview:strikeLabel];

添加下劃線:

  UILabel *underlineLabel = [[UILabel alloc] initWithFrame:(CGRectMake(10, 10, 50, 30))];
  NSString *textStr = [NSString stringWithFormat:@"%@元", primeCost];

  // 下劃線
  NSDictionary *attribtDic = @{NSUnderlineStyleAttributeName: [NSNumber numberWithInteger:NSUnderlineStyleSingle]};
  NSMutableAttributedString *attribtStr = [[NSMutableAttributedString alloc]initWithString:textStr attributes:attribtDic];

  //賦值
  underlineLabel.attributedText = attribtStr;
  
  [self.view addSubview:underlineLabel];

效果如圖所示：

效果圖

GitHub: https://github.com/LiCheng244/LCUtils
個(gè)人博客: http://www.licheng244.com/