Question

我有两个NSAttributed字符串但是当我像

那样连接时

self.label.text = attrStr1 + attrStr2 //给出错误

     var attrStr1: NSAttributedString = NSAttributedString(data: "
<b>Welcome</b>".dataUsingEncoding(NSUnicodeStringEncoding, 
allowLossyConversion: true)!,options: [ NSDocumentTypeDocumentAttribute:
 NSHTMLTextDocumentType],documentAttributes: nil,error: nil)!

    var attrStr2: NSAttributedString = NSAttributedString(data: "
<i>User</i>".dataUsingEncoding(NSUnicodeStringEncoding, 
allowLossyConversion: true)!,options: [ NSDocumentTypeDocumentAttribute: 
NSHTMLTextDocumentType],documentAttributes: nil,error: nil)!

我们也可以连接一个NSAttributedString和另一个NSString吗？

Answer 1

     var attrStr1: NSAttributedString = NSAttributedString(data: "
<b>Welcome</b>".dataUsingEncoding(NSUnicodeStringEncoding, 
allowLossyConversion: true)!,options: [ NSDocumentTypeDocumentAttribute:
 NSHTMLTextDocumentType],documentAttributes: nil,error: nil)!

    var attrStr2: NSAttributedString = NSAttributedString(data: "
<i>User</i>".dataUsingEncoding(NSUnicodeStringEncoding, 
allowLossyConversion: true)!,options: [ NSDocumentTypeDocumentAttribute: 
NSHTMLTextDocumentType],documentAttributes: nil,error: nil)!

连接这个字符串：

var concate = NSMutableAttributedString(attributedString: attrStr1)
concate.appendAttributedString(attrStr2)

self.label.text = concate

Answer 2

2020年| SWIFT 5.1： 您可以像这样添加2个NSAttributedString：

let concatenated =  NSAttrStr1.append(NSAttrStr2)

在同一问题上，还有一个更好的答案： https://stackoverflow.com/a/60329354/4423545

如何在swift中连接两个NSAttributed String？

2 个答案: