NSMutableAttributedString在tableviewcell中不具有特定范围 [英] NSMutableAttributedString not working in tableviewcell with a specific range

问题描述

我已关注这个问题但没有解决我的问题。

I have followed this question but didn't solve my problem.

我在ViewController中有一个 tableview ， tableviewcell 有标签。我想用 NSStrikethroughStyleAttributeName 设置 attributedString 。如果我将完整的字符串设置为删除线它会但如果我设置为部分它不起作用。

I have a tableview in ViewController , tableviewcell have a label. I want to set attributedString with NSStrikethroughStyleAttributeName. If i am setting complete string as a strikethrough it works but if i am setting as partial it doesn't works.

下面的成功结果代码

Below code for success result

let strOriginalPrice = "my price"
let strdiscountedPrice = "discounted price"
let strPrice = strOriginalPrice+" "+strdiscountedPrice

let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: strPrice)
 attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 2, range: NSMakeRange(0, attributeString.length))

cell.lblPrice.attributedText = attributeString 

以下代码无法正常工作

Below code not working

let attributedDiscunt: NSMutableAttributedString =  NSMutableAttributedString(string: strPrice)
            attributedDiscunt.addAttribute(NSStrikethroughStyleAttributeName, value:2, range: NSMakeRange(0, strOriginalPrice.characters.count-1))

cell.lblPrice.attributedText = attributedDiscunt 

推荐答案

试试这个，

   let strOriginalPrice = "my price"
    let strdiscountedPrice = "discounted price"
    let strPrice = strOriginalPrice+" "+strdiscountedPrice

 //        let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: strPrice)
//        attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 2, range: NSMakeRange(0, attributeString.length))

    let attributedDiscunt: NSMutableAttributedString =  NSMutableAttributedString(string: strPrice)
    attributedDiscunt.addAttribute(NSStrikethroughStyleAttributeName, value:2, range: NSMakeRange(0, strOriginalPrice.characters.count-1))
    attributedDiscunt.addAttribute(NSBaselineOffsetAttributeName, value: 0, range: NSMakeRange(0, strOriginalPrice.characters.count-1))


    cell.lblPrice.attributedText = attributedDiscunt

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