ios - 适用于iOS的AWSS3TransferUtility不起作用(虽然有AWSS3TransferManager)

我以前使用过AWSS3TransferManager将图像上传到s3存储桶，并且一切运行正常，但是我认为必须进行后台上传，因此决定切换到AWSS3TransferUtilityManager。我已经完全按照指南中的说明实现了代码，但是上传从未开始:

实例化AWS Code(在应用程序委托(delegate)中-didFinishLaunching ...):

    //AWS SDK
    let credentialsProvider = AWSCognitoCredentialsProvider(regionType: AWSRegionType.USEast1, identityPoolId: "my_pool_id")
    let configuration = AWSServiceConfiguration(region: AWSRegionType.USWest1, credentialsProvider: credentialsProvider)
    AWSServiceManager.defaultServiceManager().defaultServiceConfiguration = configuration

设置临时目录以将图像保存到上载:

        //Set up and potentially clear temporary image directory before uploading
        let path = (NSTemporaryDirectory() as NSString).stringByAppendingPathComponent("image.png")
        let thumbnailUrl = NSURL(fileURLWithPath: path)

        var error: NSError? = nil
        if NSFileManager.defaultManager().fileExistsAtPath(thumbnailUrl.path!) {
            do {
                try NSFileManager.defaultManager().removeItemAtPath(thumbnailUrl.path!)
                print("Successfully cleared temporary directory")

            } catch let fileError as NSError {
                error = fileError
                print("Error clearing temporary image directory")
            }
        }

设置传输实用程序表达式:

        let expression:AWSS3TransferUtilityUploadExpression = AWSS3TransferUtilityUploadExpression()

进度更新代码:

        //-------------------------
        //Progress Bar Update
        expression.progressBlock = { (task: AWSS3TransferUtilityTask,progress: NSProgress) -> Void in
            dispatch_async(dispatch_get_main_queue(),{

                print("Image upload progress update: \(progress.fractionCompleted)")

            })
        }

将ACL标记为公开

        //Mark ACL as public
        expression.setValue("public-read", forRequestParameter: "x-amz-acl")
        expression.setValue("public-read", forRequestHeader: "x-amz-acl" )

完成处理程序代码:

        //-------------------------
        //Completion handler
        self.imageUploadCompletionHandler = { (task:AWSS3TransferUtilityUploadTask, error:NSError?) -> Void in

            print("Image upload complete")

            dispatch_async(dispatch_get_main_queue(), {

                if(error != nil){
                    print("Failure uploading thumbnail")

                }else{
                    print("Success uploading thumbnail")
                }

            })
        }

上载:

        //--------------------------
        //Upload Thumbnail
        AWSS3TransferUtility.defaultS3TransferUtility().uploadFile(thumbnailUrl, bucket: "exampleBucket", key: "exampleKey", contentType: "image/jpeg", expression: expression, completionHander: self.imageUploadCompletionHandler).continueWithBlock({ (task:AWSTask) -> AnyObject? in

            if(task.error != nil){
                print("Error uploading thumbnail: \(task.error)")
                s3RequestSuccessful = false

            }

            if(task.exception != nil){
                print("Exception uploading thumbnail: \(task.exception)")
                s3RequestSuccessful = false

            }

            if(task.result != nil){
                print("Starting upload...")
            }
            return nil
        })

因此，我的存储桶位于US-West-1，身份存储池位于US-East-1，我知道有一些关于确保存储桶和身份存储池位于同一区域的帖子，但是应该注意我已经实现的以下行:

 let configuration = AWSServiceConfiguration(region: AWSRegionType.USWest1, credentialsProvider: credentialsProvider)

我得到的行为是从未调用完成处理程序和进度块代码。我在这里想念什么？再一次，使用AWSS3TransferManager将上传完美地/成功地添加到同一存储桶中

最佳答案

通过仔细研究和尝试错误以及从AWS论坛中获得一些启发来解决问题。显然，AWSS3TransferUtilityManager不适用于名称中带有特殊字符的存储桶(在我的情况下为破折号)。令人沮丧的是，这不是AWSS3TransferManager的问题。