Question

你好我有一个字符串，我想写在Swift中的文本文档。但是，因为文本文档有换行符，所以字符串似乎是HTML格式。这就是我想要做的事情：

    //Covert str1 to str2
    var str1 = "1<div>2</div><div>3</div><div>4</div>"
    var str2 = "1        
                2
                3
                4" //Text document will have text that looks like this (With line breaks)

Answer 1

您可以尝试使用NSAttributedString：

let htmlString = "1<div>2</div><div>3</div><div>4</div>"
NSAttributedString(data: htmlString.dataUsingEncoding(NSUnicodeStringEncoding)!,
options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType],
documentAttributes: nil,
error: nil);

这会产生：

"1\n2\n3\n4\n"

Answer 2

Swift 3.0：你可以直接将它弹出到Xcode的游乐场来检查它。

let htmlString = "1<div>2</div><div>3</div><div>4</div>"
func getHtmlFormat(fromString htmlString: String) -> NSAttributedString? {
    guard let htmlData = htmlString.data(using: String.Encoding.unicode) else
    {
        print("Could not get htmlData")
        return nil
    }
    do {
        return try NSAttributedString(data: htmlData, options: [NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType], documentAttributes: nil)
    } catch let error {
        print(error)
        return nil
    }
}

let textView = UITextView(frame: CGRect(x: 0, y: 0, width: 500, height: 500))
textView.attributedText = getHtmlFormat(fromString: htmlString)

HTML字符串到Swift中的格式化文本

2 个答案: