PFObject子類收到“無法將類型'匹配'的值轉換為預期的參數類型'@noescape（AnyObject）引發->布爾'”錯誤

Question

在PFObject子類的數組上調用indexOf時，出現以下錯誤。

無法將“匹配”類型的值轉換為預期的參數類型“ @noescape（AnyObject）引發-> Bool”

我的課：

class Match: PFObject, PFSubclassing {XXXX}

發生錯誤的方法：

    func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject])
{
    //dismiss the image picker
    self.dismissViewControllerAnimated(true) { () -> Void in
        //wait for the dismissal in case there is an error to show
        let recordedVideofileURL = info[UIImagePickerControllerMediaURL] as? NSURL

        if let recordedVideofileURL = recordedVideofileURL
        {
            //upload the file to S3
            do
            {
                let uploadRequest = try S3UploadManager.uploadFile(self.match!.localPathToVideo()!)

                self.match!.saveEventually({ (success: Bool, error: NSError?) -> Void in
                    if (success)
                    {
                        // The object has been saved.
                        self.matchesController.loadObjects()

                        //set up progress tracking for the upload
                        uploadRequest.uploadProgress = {[weak self](bytesSent:Int64, totalBytesSent:Int64, totalBytesExpectedToSend:Int64) -> Void  in
                            if let match = self?.match
                            {
      >>>>>>error here           var index = self?.matchesController.objects?.indexOf(match)
                            }
                        }
                    }

                })
            }
            catch
            {
                // TODO: handle error
            }
        }
    }
}

據我只讀，當數組中包含的對象不符合Equatable擴展名時，會發生此錯誤。 但是PFObject繼承自NSObject並符合該擴展名。 所以我很茫然...

任何指針贊賞

Answer 1

找到了解決方案。 事實證明PFQueryTableViewController上的objects方法返回[AnyObject]，因此我需要將其強制轉換為[Match]

let objects = self?.matchesController.objects as! [PFObject]

然后就可以了...

我仍然對Swift和Parse還是陌生的，但是對象方法返回[AnyObject]似乎不對嗎？ 特別是考慮到文檔中的評論

 /*! @abstract The array of instances of <PFObject> that is used as a data source. */ public var objects: [AnyObject]? { get }