Question

首先：

解析：1.8.5，xcode 7，iOS 9

我有这个简单的PFUser结构：

_User: {...,picture:PFFile, picture_thumb:PFFile,...}

当我为用户保存图片时，我这样做：

在

func imagePickerController(picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : AnyObject]){   
...
     let imageData = UIImageJPEGRepresentation(imageResized!, 0.7)
     let picture = PFFile(name: "picture.jpg", data: imageData!)

     self.viewUploadPicture.hidden = false
     self.progressUploadPicture.progress = 0.0

     PFUser.currentUser()?.setObject(picture, forKey: "picture")
     picture.saveInBackgroundWithBlock({ (success:Bool, error:NSError?) -> Void in
         self.progressUploadPicture.progress = 0.0
         self.viewUploadPicture.hidden = true

         if error != nil {
            print("upload image error: \(error?.userInfo)")
            return
         }
         print("upload image OK")
         self.imgUser.image = imageResized
         self.imageUpdated = true
         PFUser.currentUser()?.saveInBackground()
     }, progressBlock: { (perc:Int32) -> Void in
         print("uploading image \(Float(perc)/100)%")
         self.viewUploadPicture.hidden = false
         self.progressUploadPicture.progress = Float(perc)/100
         self.lblUploadPicturePerc.text = "\(Float(perc))%"
      })

}

其中 imageResized 是图像......好吧，自我解释;），以及用于UX的其他控件

好吧，我的问题是，如果我在登录后删除并重新启动我的测试设备上的应用程序，当我运行AccountDetail视图控制器时，我会显示我存储的用户当然但这就是我拥有的< / p>

typealias UserFoundHandler = (PFUser) -> Void

func checkParseUser(userHandler:UserFoundHandler)  {

   guard  let user:PFUser = PFUser.currentUser() else {
      return
   }
   user.fetchInBackgroundWithBlock({ (remoteUser:PFObject?, error:NSError?) -> Void in
      guard let user:PFUser = PFUser.currentUser() else {
         self.presentParseLoginSignUp()
         return
      }
      userHandler(user)            
   })
}

并调用第一个 中代码下方的函数，如果 未执行，因为图片类型是NSData而不是PFFile，如pticure_thumb字段正确保存后关于Image模块的解析教程。

麻烦是为什么！我想念一下吗？

func fromUserToComponents(user:PFUser){
    print("fromUserToComponents \(user)")

   if let imageFile: PFFile = user.objectForKey("picture") as? PFFile {
        ... code to set fill an UIImageView
    }
}

打印结果为：

fromUserToComponents <PFUser: 0x165c77b0, objectId: D8VGNQOJzu, localId: (null)> {
    nickname = "Attilio Patania";
    picture = <ffd8ffe0 00104a46 49460001 01000048 00480000 ffe1004c 45786966 00004d4d 002a0000 00080002 01120003
    ....
    00d7b7fe cd5f38d3 2933ffd9>;
    "picture_thumb" = "<PFFile: 0x165ab480>";
}

用户图片的PFUser和PFFile

0 个答案: