2015-01-16 62 views
3

我想獲取NSXMLParser didStartElement中的attributeDict。我的問題是我在調用attributeDict時發生錯誤(無法找到接受提供參數的'subscript'的重載)。我是否稱這個方法正確?我想調用所有的符號鍵,然後將它添加到數組中。NSXMLParser didStartElement獲取屬性代碼問題

func parser(parser: NSXMLParser!, didStartElement elementName: String!, namespaceURI: String!, qualifiedName qName: String!, attributes attributeDict: [NSObject : AnyObject]!) 
{ 
    element = elementName 

    if (elementName as NSString).isEqualToString("p") 
    { 
     println("Element's attributes are \(attributeDict)") 
     //Result 
     //Element's attributes are [bid: 1.16301, offer: 1.16321, symbol: EUR/USD] 


     elements = NSMutableDictionary.alloc() 
     elements = [:] 
     title1 = NSMutableString.alloc() 
     title1 = "" 

     title1 = String(attributeDict["symbol"]) //Error 
    } 
} 
+0

首先檢查你是否得到可變的字典?比找到該字典中的關鍵「符號」。比定義title1 = attributeDict [「symbol」]!作爲NSMutableString –

回答

2

我希望這會解決您的問題

title1 = attributeDict["symbol"]! as NSMutableString