DocumentReadingOptionKey键在swift4迁移后损坏
发布时间:2020-12-14 04:38:36 所属栏目:百科 来源:网络整理
导读:使用以下代码从 swift3迁移到 swift4, let options: [NSAttributedString.DocumentReadingOptionKey: AnyHashable] = [.documentType: NSAttributedString.DocumentType.html,.characterEncoding: String.Encoding.utf8.rawValue] let str = try NSAttribute
使用以下代码从
swift3迁移到
swift4,
let options: [NSAttributedString.DocumentReadingOptionKey: AnyHashable] = [.documentType: NSAttributedString.DocumentType.html,.characterEncoding: String.Encoding.utf8.rawValue] let str = try NSAttributedString( data:string!.data(using: String.Encoding.utf8,allowLossyConversion: true )!,options:options,documentAttributes: nil) iOS 9没有问题,运行iOS 8.3时,控制台输出:“dyld:找不到符号:_NSCharacterEncodingDocumentOption”;它将在评论“.characterEncoding:String.Encoding.utf8.rawValue”之后传递. 解决方法
我找到了解决方案.你应该为swift4删除.characterEncoding.
它适用于ios8,9,11. 例: public func htmlToString() -> String? { guard let data = data(using: .utf8) else { return nil } do { return try NSAttributedString( data: data,options: [ .documentType: NSAttributedString.DocumentType.html ],documentAttributes: nil ).string } catch let error as NSError { print(error.localizedDescription) return nil } } 祝你有美好的一天! (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |