Question

我想创建一个UILabel，其中的文字就像这样

enter image description here

我该怎么做？当文本很小时，该行也应该很小。

Answer 1

SWIFT CODE

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

然后：

yourLabel.attributedText = attributeString

要使字符串的某些部分出现，请提供范围

let somePartStringRange = (yourStringHere as NSString).range(of: "Text")
attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 2, range: somePartStringRange)

<强>目标C

在 iOS 6.0＆gt; UILabel支持NSAttributedString

NSMutableAttributedString *attributeString = [[NSMutableAttributedString alloc] initWithString:@"Your String here"];
[attributeString addAttribute:NSStrikethroughStyleAttributeName
                        value:@2
                        range:NSMakeRange(0, [attributeString length])];

<强>夫特

let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: "Your String here")
attributeString.addAttribute(NSStrikethroughStyleAttributeName, value: 2, range: NSMakeRange(0, attributeString.length))

定义：

- (void)addAttribute:(NSString *)name value:(id)value range:(NSRange)aRange

Parameters List:

name ：指定属性名称的字符串。属性键可以由另一个框架提供，也可以是您定义的自定义键。有关在何处查找系统提供的属性键的信息，请参阅NSAttributedString类参考中的概述部分。

值：与name关联的属性值。

aRange ：指定属性/值对应用的字符范围。

然后

yourLabel.attributedText = attributeString;

对于lesser than iOS 6.0 versions，您需要3-rd party component才能执行此操作。其中一个是TTTAttributedLabel，另一个是OHAttributedLabel。

Answer 2

对于这个简单的案例，我更喜欢NSAttributedString而不是NSMutableAttributedString：

NSAttributedString * title =
    [[NSAttributedString alloc] initWithString:@"$198"
                                    attributes:@{NSStrikethroughStyleAttributeName:@(NSUnderlineStyleSingle)}];
[label setAttributedText:title];

用于指定属性字符串的NSUnderlineStyleAttributeName和NSStrikethroughStyleAttributeName属性的常量：

typedef enum : NSInteger {  
  NSUnderlineStyleNone = 0x00,  
  NSUnderlineStyleSingle = 0x01,  
  NSUnderlineStyleThick = 0x02,  
  NSUnderlineStyleDouble = 0x09,  
  NSUnderlinePatternSolid = 0x0000,  
  NSUnderlinePatternDot = 0x0100,  
  NSUnderlinePatternDash = 0x0200,  
  NSUnderlinePatternDashDot = 0x0300,  
  NSUnderlinePatternDashDotDot = 0x0400,  
  NSUnderlineByWord = 0x8000  
} NSUnderlineStyle;

Answer 3

SWIFT CODE

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

然后：

yourLabel.attributedText = attributeString

感谢Prince answer;）

Answer 4

Swift 4.0中的删除线

let attributeString =  NSMutableAttributedString(string: "Your Text")

attributeString.addAttribute(NSAttributedStringKey.strikethroughStyle,
                                 value: NSUnderlineStyle.styleSingle.rawValue,
                                 range: NSMakeRange(0, attributeString.length))
self.yourLabel.attributedText = attributeString

它对我来说就像一个魅力。

将其用作扩展名

extension String {
    func strikeThrough() -> NSAttributedString {
        let attributeString =  NSMutableAttributedString(string: self)
        attributeString.addAttribute(NSAttributedStringKey.strikethroughStyle, value: NSUnderlineStyle.styleSingle.rawValue, range: NSMakeRange(0,attributeString.length))
        return attributeString
    }
}

像这样打电话

myLabel.attributedText = "my string".strikeThrough()

Answer 5

SWIFT 4

    let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: "Your Text Goes Here")
    attributeString.addAttribute(NSAttributedStringKey.strikethroughStyle, value: NSUnderlineStyle.styleSingle.rawValue, range: NSMakeRange(0, attributeString.length))
    self.lbl_productPrice.attributedText = attributeString

其他方法是使用String Extension
的扩展

extension String{ func strikeThrough()->NSAttributedString{ let attributeString: NSMutableAttributedString = NSMutableAttributedString(string: self) attributeString.addAttribute(NSAttributedStringKey.strikethroughStyle, value: NSUnderlineStyle.styleSingle.rawValue, range: NSMakeRange(0, attributeString.length)) return attributeString } }

调用函数：像这样使用它

testUILabel.attributedText = "Your Text Goes Here!".strikeThrough()

归功于@Yahya - 2017年12月更新
归功于@kuzdu - 2018年8月更新

Answer 6

您可以使用NSMutableAttributedString在IOS 6中完成。

NSMutableAttributedString *attString=[[NSMutableAttributedString alloc]initWithString:@"$198"];
[attString addAttribute:NSStrikethroughStyleAttributeName value:[NSNumber numberWithInt:2] range:NSMakeRange(0,[attString length])];
yourLabel.attributedText = attString;

Answer 7

在Swift iOS中删除UILabel文本。请试试这个，这对我有用

let attributedString = NSMutableAttributedString(string:"12345")
                      attributedString.addAttribute(NSAttributedStringKey.baselineOffset, value: 0, range: NSMakeRange(0, attributedString.length))
                      attributedString.addAttribute(NSAttributedStringKey.strikethroughStyle, value: NSNumber(value: NSUnderlineStyle.styleThick.rawValue), range: NSMakeRange(0, attributedString.length))
                      attributedString.addAttribute(NSAttributedStringKey.strikethroughColor, value: UIColor.gray, range: NSMakeRange(0, attributedString.length))

 yourLabel.attributedText = attributedString

您可以像styleSingle，styleThick，styleDouble一样更改“strikethroughStyle”

Answer 8

对于在tableview单元格（Swift）中查看如何执行此操作的任何人，您必须像这样设置.attributeText：

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("TheCell")!

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

    cell.textLabel?.attributedText =  attributeString

    return cell
    }

如果你想删除删除线，请执行此操作，否则它会粘在一起！：

cell.textLabel?.attributedText =  nil

Answer 9

我可能迟到了聚会。

无论如何，我知道NSMutableAttributedString，但最近我以略有不同的方法实现了相同的功能。

我添加了高度= 1的UIView。
将UIView的前导和尾随约束与标签的前导和尾随约束
将UIView对准Label的中心

按照上述所有步骤操作后，我的Label，UIView及其约束看起来如下图所示。

Answer 10

使用以下代码

NSString* strPrice = @"£399.95";

NSMutableAttributedString *titleString = [[NSMutableAttributedString alloc] initWithString:strPrice];

[finalString addAttribute: NSStrikethroughStyleAttributeName value:[NSNumber numberWithInteger: NSUnderlineStyleSingle] range: NSMakeRange(0, [titleString length])];
self.lblOldPrice.attributedText = finalString;

Answer 11

在iOS 10.3上，通过向属性字符串中添加NSBaselineOffsetAttributeName（如此处所述）来渲染删除线行，在渲染删除线行修复方面存在问题。覆盖drawText：in：可能会很慢，尤其是在“集合视图”或“表格视图”单元格上。

一个sol-添加视图以渲染一条线。

第二溶胶-

attributeString.addAttribute(NSAttributedString.Key.strikethroughStyle, value: 2, range: NSMakeRange(0, attributeString.length))
attributeString.addAttribute(NSAttributedString.Key.baselineOffset, value: 2, range: NSMakeRange(0, attributeString.length))```

Answer 12

快速4和5

extension NSAttributedString {

    /// Returns a new instance of NSAttributedString with same contents and attributes with strike through added.
     /// - Parameter style: value for style you wish to assign to the text.
     /// - Returns: a new instance of NSAttributedString with given strike through.
     func withStrikeThrough(_ style: Int = 1) -> NSAttributedString {
         let attributedString = NSMutableAttributedString(attributedString: self)
         attributedString.addAttribute(.strikethroughStyle,
                                       value: style,
                                       range: NSRange(location: 0, length: string.count))
         return NSAttributedString(attributedString: attributedString)
     }
}

示例

let example = NSAttributedString(string: "440").withStrikeThrough(1)
myLabel.attributedText = example

结果

Answer 13

Swift 4.2

let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: product.price)

attributeString.addAttribute(NSAttributedString.Key.strikethroughStyle, value: NSUnderlineStyle.single.rawValue, range: NSMakeRange(0, attributeString.length))

lblPrice.attributedText = attributeString

Answer 14

Swift 5 - 简短版本

let attrString = NSAttributedString(string: "Label Text", attributes: [NSAttributedString.Key.strikethroughStyle: NSUnderlineStyle.single.rawValue])

yourLabel.attributedText = attrString

Answer 15

快速5

extension String {

  /// Apply strike font on text
  func strikeThrough() -> NSAttributedString {
    let attributeString = NSMutableAttributedString(string: self)
    attributeString.addAttribute(
      NSAttributedString.Key.strikethroughStyle,
      value: 1,
      range: NSRange(location: 0, length: attributeString.length))

      return attributeString
     }
   }

示例：

someLabel.attributedText = someText.strikeThrough()

Answer 16

将text属性更改为attributed并选择文本，然后单击鼠标右键以获取font属性。单击删除线。 Screenshot

Answer 17

这是您可以在Swift 4中使用的版本，因为NSStrikethroughStyleAttributeName已更改为NSAttributedStringKey.strikethroughStyle

let attributeString: NSMutableAttributedString =  NSMutableAttributedString(string: "Your Text")

attributeString.addAttribute(NSAttributedStringKey.strikethroughStyle, value: 2, range: NSMakeRange(0, attributeString.length))

self.lbl.attributedText = attributeString

Answer 18

创建字符串扩展名并添加以下方法

static func makeSlashText(_ text:String) -> NSAttributedString {


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

return attributeString 

}

然后像这样使用你的标签

yourLabel.attributedText = String.makeSlashText("Hello World!")

Answer 19

对于那些面临多行文字罢工问题的人

    let attributedString = NSMutableAttributedString(string: item.name!)
    //necessary if UILabel text is multilines
    attributedString.addAttribute(NSBaselineOffsetAttributeName, value: 0, range: NSMakeRange(0, attributedString.length))
     attributedString.addAttribute(NSStrikethroughStyleAttributeName, value: NSNumber(value: NSUnderlineStyle.styleSingle.rawValue), range: NSMakeRange(0, attributedString.length))
    attributedString.addAttribute(NSStrikethroughColorAttributeName, value: UIColor.darkGray, range: NSMakeRange(0, attributedString.length))

    cell.lblName.attributedText = attributedString

UILabel文字突破

19 个答案: