ios - 无法使用参数列表类型(字符串 : String, 属性 : [NSObject: AnyObject]?)调用 NSAttributedString 类型的初始值设定项

Question

我正在将代码从 XCode 6.4 迁移到 XCode 7，这个错误似乎无法解决。

func onHoldReasonAttributedTextSetup(onHoldReson : String) -> NSMutableAttributedString
{

    let markerFontAttributes : [NSObject : AnyObject]? = [
      NSFontAttributeName : UIFont(name: "HelveticaNeue", size: 12.0)!,
      NSForegroundColorAttributeName : UIColor(red: 0/255, green: 152/255, blue: 204/255, alpha: 1.0)
    ]
    let onHoldText = NSAttributedString(string: "On Hold: ", attributes: markerFontAttributes)
    let onHoldReasonText  = NSAttributedString(string:onHoldReson)
    var string = NSMutableAttributedString()
    string.appendAttributedString(onHoldText)
    string.appendAttributedString(onHoldReasonText)
    return string
}

Answer 1

你需要改变这一行:

let markerFontAttributes : [NSObject : AnyObject]? = [
      NSFontAttributeName : UIFont(name: "HelveticaNeue", size: 12.0)!,
      NSForegroundColorAttributeName : UIColor(red: 0/255, green: 152/255, blue: 204/255, alpha: 1.0)
    ]

到

let markerFontAttributes : [String : AnyObject]? = [
      NSFontAttributeName : UIFont(name: "HelveticaNeue", size: 12.0)!,
      NSForegroundColorAttributeName : UIColor(red: 0/255, green: 152/255, blue: 204/255, alpha: 1.0)
    ]

因为初始化器需要 [String : AnyObject]? 格式的属性字典:

init(string str: String, attributes attrs: [String : AnyObject]?)

引用:NSAttributedString Class Reference