使用PropertyListSerialization使一個詞典中迅速2

Question

我試圖與PropertyListSerialization字典中迅速2，但是不斷地給出了這樣的錯誤：

"can not convert value of type 'Int' to expected argument type 'NSPropertyListReadOptions' 

我的代碼行是：

NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {response,data,error in 
      if data != nil { 
      let datasourceDictionary = try! NSPropertyListSerialization.propertyListWithData(data! ,options:Int(NSPropertyListMutabilityOptions.Immutable.rawValue), format: nil) 

這：

let datasourceDictionary = try! NSPropertyListSerialization.propertyListWithData(data! ,options:Int(NSPropertyListMutabilityOptions.Immutable.rawValue), format: nil) 

之後，我不得不遍歷所有的字典：

for(key, value): (AnyObject, AnyObject) in datasourceDictionary { 
      let name = key as? String 
      let url = NSURL(string:value as? String ?? "") 
      if name != nil && url != nil { 
      let photoRecord = PhotoRecord(name:name!, url:url!) 
      self.photos.append(photoRecord) 
      } 
     } 

Answer 1

你應該解開，而不是你的數據對象檢查它反對零的。你也需要實現會盡力捕捉錯誤處理，而不是強迫它：

if let data = data { 
    do { 
     let datasourceDictionary = try NSPropertyListSerialization.propertyListWithData(data, options: .MutableContainersAndLeaves, format: nil) 
     print(datasourceDictionary) 
    } catch let error as NSError { 
     print(error.code, error.domain) 
    } 
} 

Answer 2

你不需要將其更改爲INT：

NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {response,data,error in 
      if data != nil { 
      let datasourceDictionary = try! NSPropertyListSerialization 
              .propertyListWithData(data!, 
               options:NSPropertyListMutabilityOptions.Immutable, 
               format: nil) 

這：

let datasourceDictionary = try! NSPropertyListSerialization 
              .propertyListWithData(data! , 
               options:NSPropertyListMutabilityOptions.Immutable, 
               format: nil)