Swift - 将HTML文本转换为归属字符串

Question

在我的一个模块中,我希望使用UILabel将多语言HTML文本(英语和泰米尔语)显示为NSAttributedString.如果文本是纯英文,我可以用这种方式表现出我的愿望.但我的内容包含英文和泰米尔语字符.我该怎么处理这个场景.如果有人知道,请分享您的建议.

HTML内容

<medium><b><font color='#2f3744'>IPL Tamil Web Series Episode #3 | ?????? Swetha ? | Tamil Comedy Web Series | Being Thamizhan</font></b></medium> has been succesfully scheduled on <medium><b><font color='#2f3744'>2018-05-23 08:51 PM</font></b></medium>

期望

IPL泰米尔语网络系列第3集| யாருடாSwetha？| 泰米尔喜剧网络系列| 作为Thamizhan成功地安排在2018-05-23 08:45 PM

电流输出

IPL泰米尔语网络系列第3集| &*$%!@#$ @ ^&$&^%$ Swetha？| 泰米尔喜剧网络系列| 作为Thamizhan成功地安排在2018-05-23 08:45 PM

注意:我尝试使用下面的代码段来存档它

extension String {
var htmlToAttributedString: NSAttributedString? {
    guard let data = data(using: .utf8) else { return NSAttributedString() }
    do {
        return try NSAttributedString(data: data, options:
            [NSAttributedString.DocumentReadingOptionKey.documentType: NSAttributedString.DocumentType.html], documentAttributes: nil)
    } catch {
        return NSAttributedString()
    }
}
var htmlToString: String {
    return htmlToAttributedString?.string ?? ""
}
}

Answer 1

我用你的html尝试了这个解决方案并且运行良好:

let htmlText = "<medium><b><font color='#2f3744'>IPL Tamil Web Series Episode #3 | ?????? Swetha ? | Tamil Comedy Web Series | Being Thamizhan</font></b></medium> has been succesfully scheduled on <medium><b><font color='#2f3744'>2018-05-23 08:51 PM</font></b></medium>"
let encodedData = htmlText.data(using: String.Encoding.utf8)!
var attributedString: NSAttributedString

do {
    attributedString = try NSAttributedString(data: encodedData, options: [NSAttributedString.DocumentReadingOptionKey.documentType:NSAttributedString.DocumentType.html,NSAttributedString.DocumentReadingOptionKey.characterEncoding:NSNumber(value: String.Encoding.utf8.rawValue)], documentAttributes: nil)
} catch let error as NSError {
    print(error.localizedDescription)
} catch {
    print("error")
}

attributedString 输出:

IPL泰米尔语网络系列第3集| யாருடாSwetha？| 泰米尔喜剧网络系列| 作为Thamizhan成功地安排在2018-05-23 08:45 PM