首页 > 学院 > 开发设计 > 正文

UILabel

2019-11-14 17:53:43
字体:
来源:转载
供稿:网友

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    

 


发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表