UILabel

创建Label

     let rect = CGRectMake(10, 100, 320, 100)
     let label : UILabel = UILabel (frame: rect)
     self.view.addSubview(label)

Label常用属性

        label.backgroundColor = UIColor.orangeColor()//背景颜色
        label.text = "this is a Label"//内容
        label.font = UIFont.boldSystemFontOfSize(20)//字号
        label.textColor = UIColor.whiteColor()//字体颜色
        label.textAlignment = NSTextAlignment.Center//内容显示位置
        label.lineBreakMode = NSLineBreakMode.ByCharWrapping//内容截断方式
        label.numberOfLines = 0//内容显示的行数
        label.highlighted = true//高亮状态
        label.highlightedTextColor = UIColor.greenColor()//高亮时文字颜色
        label.shadowColor = UIColor.blackColor()//阴影颜色
        label.shadowOffset = CGSize.init(width: 1, height: 1)//阴影位置
        label.adjustsFontSizeToFitWidth = true//自适应改变文字大小    

layer属性

     label.layer.masksToBounds = true//掩藏超出部分
        label.layer.cornerRadius = 10//圆角
        label.layer.borderWidth = 2//边框
        label.layer.borderColor = UIColor.greenColor().CGColor//边框颜色
        label.transform = CGAffineTransformMakeRotation(0.3)//旋转

富文本设置

     let attributeString = NSMutableAttributedString(string: "hello world")
        attributeString.addAttribute(NSFontAttributeName, value: UIFont(name: "HelveticaNeue-Bold", size: 16)!, range: NSMakeRange(0,6))//设置字体
        attributeString.addAttribute(NSForegroundColorAttributeName, value: UIColor.blueColor(), range: NSMakeRange(0, 3))//设置字体颜色
        attributeString.addAttribute(NSBackgroundColorAttributeName, value: UIColor.darkGrayColor(), range: NSMakeRange(2, 2))//设置字体背景颜色
        let url = NSURL(string: "http://www.baidu.com")
        attributeString.addAttribute(NSLinkAttributeName, value:url! , range:  NSMakeRange(0, 11))//链接属性点击将启动浏览器打开一个URL地址,中间用到一个代理函数,UILabel 和 UITextField 无法使用该属性 UITextView可用
        label.attributedText = attributeString

添加点击事件

        let tap : UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: "Click:")
        label.userInteractionEnabled = true
        label.tag = 101
        label.addGestureRecognizer(tap)    
     func Click(let tap : UITapGestureRecognizer){
          let Label = self.view.viewWithTag((tap.view?.tag)!) as! UILabel
          print(Label.text!)
      }

显示HTML标签 富文本设置

        let html = "this is html <a href=\"http://www.baidu.com\">link</a>"
        let data = html.dataUsingEncoding(NSUTF32StringEncoding, allowLossyConversion: false)
        let textAttr = try! NSAttributedString(data: data!, options: [NSDocumentTypeDocumentAttribute:NSHTMLTextDocumentType], documentAttributes: nil)
        label.multipleTouchEnabled = true
        label.attributedText = textAttr    

 

来源: http://www.cnblogs.com/spaceID/p/4976580.html

posted @ 2015-11-19 09:27  寻找小猪  阅读(259)  评论(0编辑  收藏  举报