设置NSUnderlineStyle会导致无法识别的选择器异常 [英] Setting NSUnderlineStyle causes unrecogognized selector exception

问题描述

我试图用NSAttributed字符串加下划线.出于某种原因，我的行导致了异常:

I am trying to underline a string with NSAttributed string. For some reason, my lines cause the exception:

-[_SwiftValue _getValue:forType:]: unrecognized selector sent to instance   

该结果应该用于UITableView中的UILabel，并根据需要创建.

The result is supposed to be used for a UILabel within a UITableView and is created as needed.

这是代码:

attributedString = NSMutableAttributedString(string: message)

if let actor = event.actor {
   let attributes = [NSUnderlineStyleAttributeName:NSUnderlineStyle.styleSingle]
   var attributedActorString = NSMutableAttributedString(string: actor.shirtName, attributes: attributes)
   attributedActorString.insert(NSAttributedString(string: " "), at: 0)
   attributedActorString.append(NSAttributedString(string: ". "))                               attributedActorString.append(attributedImageStringForUrl(event.actor!.portraitImageUrl, indexPath: indexPath))
   attributedString.append(attributedActorString)
}

推荐答案

更改行:

let attributes = [NSUnderlineStyleAttributeName:NSUnderlineStyle.styleSingle]

收件人:

let attributes = [NSUnderlineStyleAttributeName:NSUnderlineStyle.styleSingle.rawValue]

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