输入'[NSObject：AnyObject]！' 不符合协议'DictionaryLiteralConvertible'
[英]Type '[NSObject : AnyObject]!' does not conform to protocol 'DictionaryLiteralConvertible'
问题描述
self.textView.linkTextAttributes = [NSForegroundColorAttributeName: UIColor.blackColor(),
NSUnderlineStyleAttributeName: NSUnderlineStyle.StyleSingle]
This gives a compiler error saying Type '[NSObject : AnyObject]!' does not conform to protocol 'DictionaryLiteralConvertible' 
这给出了一个编译器错误，上面写着Type '[NSObject : AnyObject]!' does not conform to protocol 'DictionaryLiteralConvertible' Type '[NSObject : AnyObject]!' does not conform to protocol 'DictionaryLiteralConvertible' . Type '[NSObject : AnyObject]!' does not conform to protocol 'DictionaryLiteralConvertible' 。 I've just started Swift and cannot figure out what's wrong. 我刚开始使用Swift并且无法弄清楚出了什么问题。
1 个解决方案
解决方案1
13 已采纳 2014-09-17 13:15:33
The problem is that NSUnderlineStyle.StyleSingle is a Swift enum value and it doesn't conform to the AnyObject protocol. 问题是NSUnderlineStyle.StyleSingle是一个Swift枚举值，它不符合AnyObject协议。 To get around this, call toRaw() to convert it to an Int : 要解决这个问题，请调用toRaw()将其转换为Int ：
self.textView.linkTextAttributes = [NSForegroundColorAttributeName: UIColor.blackColor(),
NSUnderlineStyleAttributeName: NSUnderlineStyle.StyleSingle.toRaw()]
Update (for Xcode 6.1): 更新（适用于Xcode 6.1）：
The function toRaw() has been replaced with the property rawValue in Xcode 6.1. 函数toRaw()已被Xcode 6.1中的属性rawValue替换。
self.textView.linkTextAttributes = [NSForegroundColorAttributeName: UIColor.blackColor(),
NSUnderlineStyleAttributeName: NSUnderlineStyle.StyleSingle.rawValue]
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