Value of type ‘(Bool, AnyObject?, JSON) -> Void’ does not conform to expected dictionary value type ‘AnyObject’ |
搜：
swift function as parameter does not conform to expected dictionary value type ‘AnyObject’
参考：
ios – Swift closure as values in Dictionary – Stack Overflow
ios – Argument type ‘[String?]’ does not conform to expected type ‘AnyObject’ – Stack Overflow
Swift Literal Convertibles – NSHipster
9 Essential Swift Interview Questions and Answers | Toptal
swift function as dictionary value
最后，暂时是可以凑合成：
func deleteUserFromGroup(userIdToDelete:String, deleteDoneHandler: ((String) -> Void)) { enum DataType { case AsString(String) case AsClosure((String) -> Void) } // var dict:Dictionary<String,DataType> = [ // "string":DataType.AsString("value"), // "closure":DataType.AsClosure({(argument:String) -> Void in // return "value" // } // ) // ] // let FuncAsParaDict:[String: (String) -> Void] = [ // "deleteDoneHandler" : deleteDoneHandler] // let extraParas:[String:AnyObject] = [ // let extraParas:[String:NSObject] = [ let extraParas:[String:DataType] = [ // "httpVerb" : String(HTTPVerb.DELETE), "httpVerb" : DataType.AsString(String(HTTPVerb.DELETE)), // "FuncAsParaDict" : FuncAsParaDict // "deleteDoneHandler" : deleteDoneHandler "deleteDoneHandler" : DataType.AsClosure(deleteDoneHandler) ] print("extraParas=\(extraParas)") getUrlRespJsonDict_async(deleteFromGroupUrl, extraParas: extraParas, respJsonDictHandler: deleteFromGroupHandler) } |
了，但是此处不想去修改之前已有函数
getUrlRespJsonDict_async
中[String:AnyObject]的类型的extraParas了，所以还是懒得继续折腾了。
［总结］
此处，想要一个函数function（＝＝closure＝＝block）作为一个字典dictionary变量的值value的话，可以这么写：
func deleteUserFromGroup(userIdToDelete:String, deleteDoneHandler: ((String) -> Void)) { enum DataType { case AsString(String) case AsClosure((String) -> Void) } let extraParas:[String:DataType] = [ "httpVerb" : DataType.AsString(“DELETE"), "deleteDoneHandler" : DataType.AsClosure(deleteDoneHandler) ] print("extraParas=\(extraParas)") } |
即可。
转载请注明：在路上 » ［已解决］swift中想要把函数作为参数传递结果出错： Value of type ‘(Bool, AnyObject?, JSON) -> Void’ does not conform to expected dictionary value type ‘AnyObject’