如何通过PHImageFileURLKey从iphone设备获取图像

Question

  

我必须将所有iPhone图库图像发送到服务器。现在我通过此功能获取所有图像，并将此图像路径保存在核心数据中。“

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我正在通过此功能获取核心数据的所有记录。

    func getAllImage() {

    let manager = PHImageManager.defaultManager()
    self.assetsFetchResult.enumerateObjectsUsingBlock{(object: AnyObject!,
        count: Int,
        stop: UnsafeMutablePointer<ObjCBool>) in

        if object is PHAsset{
            let asset = object as! PHAsset
            let imageSize = CGSize(width: asset.pixelWidth,
                height: asset.pixelHeight)
            /* For faster performance, and maybe degraded image */
            let options = PHImageRequestOptions()
            options.deliveryMode = .FastFormat
            options.synchronous = true
            manager.requestImageForAsset(asset,
                targetSize: imageSize,
                contentMode: .AspectFill,
                options: options,
                resultHandler: {
                    (image, info) -> Void in

                    debugPrint(object.localIdentifier)
                    //object.localIdentifier
                 if   let imageURL : NSURL? = info!["PHImageFileURLKey"] as AnyObject? as? NSURL
                 {
                    if imageURL != nil{
                  //  let urlString: String = imageURL!.path!
                    let urlString: String = (imageURL?.lastPathComponent)!
                    self.createTask(urlString)
                    print("this is image path \(info!["PHImageFileURLKey"])")
                    }
                }
            }

            )
        }
    }
}
    func createTask(imagePath : String) {
    let entityDescripition = NSEntityDescription.entityForName("PhotoLibrary", inManagedObjectContext: managedObjectContext)
    let task = Tasks(entity: entityDescripition!, insertIntoManagedObjectContext: managedObjectContext)
    task.frameid = "1"
    task.photopath = imagePath
    task.accesstoken = ""
    task.photoname = "abc"
    task.deliverystatus = "no"
    do {
        try managedObjectContext.save()
    } catch _ {
    }
}

但我的问题是，当我将此图像路径转换为图像时 并将此图像发送到服务器，它在模拟器中正常工作，但我无法将此图像路径转换为设备崩溃的图像。我无法将其转换为iPhone设备中的图像。请给我任何建议。