Swift-3错误：' - [_ SwiftValue unsignedIntegerValue]：无法识别的选择器 [英] Swift-3 error: '-[_SwiftValue unsignedIntegerValue]: unrecognized selector

问题描述

以下代码与旧的swift完美配合。这是String的扩展名

Following code was perfectly worked with old swift. This is an extension of String

func stringByConvertingHTML() -> String {
    let newString = replacingOccurrences(of: "\n", with: "<br>")
    if let encodedData = newString.data(using: String.Encoding.utf8) {
        let attributedOptions : [String: AnyObject] = [
            NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType as AnyObject,
            NSCharacterEncodingDocumentAttribute: String.Encoding.utf8 as AnyObject
        ]
        do {
            let attributedString = try NSAttributedString(data: encodedData, options: attributedOptions, documentAttributes: nil) //Crash here
            return attributedString.string
        } catch {
            return self
        }
    }
    return self
}

但是在swift 3中它崩溃说

But in swift 3 it crashes saying

***由于未捕获的异常终止应用程序
'NSInvalidArgumentException'，reason：' - [_ SwiftValue
unsignedIntegerValue]：无法识别s选民发送到实例
0x6080002565f0'

*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[_SwiftValue unsignedIntegerValue]: unrecognized selector sent to instance 0x6080002565f0'

任何人都建议我需要做什么？

Anyone please suggest me what need to do?

推荐答案

我遇到同样的问题：

let attributedOptions : [String: AnyObject] = [
            NSDocumentTypeDocumentAttribute: NSHTMLTextDocumentType as AnyObject,
            NSCharacterEncodingDocumentAttribute: String.Encoding.utf8 as AnyObject
        ]

这里的 String.Encoding.utf8 类型检查失败。使用 NSNumber（值：String.Encoding.utf8.rawValue）

Here the String.Encoding.utf8 the type check fails. Use NSNumber(value: String.Encoding.utf8.rawValue)

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