添加文字＆＃34; ...阅读更多＆＃34;在UILabel IOS的​​特定部分

Question

我想把这个文字＆＃34; ...阅读更多＆＃34;当我的标签文本超过3行时，我想防止我的文本不会被截断。

我尝试了一些代码，但我遇到了不同iPhone宽度的问题，我的代码适用于iPhone 6s，但不适用于iPhone 4s和iPhone 5s。

这是我的代码：

let originalText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec tristique ipsum non pretium mollis. Curabitur tristique asfhaksjf sfjhksafhdaf ahsdifhsadfh asdfhsahfoas sdofhasdhfasdf"

        label.text = originalText
        let labelWidth = label.frame.size.width * CGFloat(label.numberOfLines)

        let str = label.text! as NSString

        let words = str.componentsSeparatedByString(" ")
        var newStr = "" as NSString

        for word in words {
            let statement = "\(newStr) \(word) ... Read more" as NSString
            let size = statement.sizeWithAttributes([NSFontAttributeName: label.font])
            let readMoreStatement = " ... Read more" as NSString
            let sizeReadMore = readMoreStatement.sizeWithAttributes([NSFontAttributeName : label.font])

            if size.width < labelWidth {

                newStr = "\(newStr) \(word)"
                label.text = newStr as String
            } else {
                newStr = newStr.stringByAppendingString("... Read More")
                label.text = newStr as String
                break
            }
        }

以下是4s的结果：

以下是6s的结果：

有什么建议我如何解决这个问题？

Answer 1

您需要首先自动标记您的标签并使用以下代码

  let originalText = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec tristique ipsum non pretium mollis. Curabitur tristique asfhaksjf sfjhksafhdaf ahsdifhsadfh asdfhsahfoas sdofhasdhfasdf"

    label.text = originalText
    print((label.text?.characters.count)!) 

    if (label.text?.characters.count)! < 100 { 

           label.text = originalText
           label.center  = view.center
           label.textAlignment = .justified 
           label.adjustsFontSizeToFitWidth = true // If you want a dynamic font size
           label.sizeToFit()
           print(label.text!) // If character count less then 100 approximately 3 lines
        } else {

            label.text = "...Read more"
            label.textAlignment = .center 
            print(label.text!) //If character count more then 100 exceeds 3 lines         

     // You can setup a UIButton here for your "...Read more" action

    }

希望，这有助于你......