仅限SwiftyDropbox列表文件夹

Question

我SwiftyDropbox在我的iOS应用程序中使用SDK,我试图仅在我的应用程序中列出文件夹,然后用户可以选择一个文件夹(而不是文件).

in ViewController=> viewDidLoad

override func viewDidLoad() {
    super.viewDidLoad()

    guard let dropboxClient = DropboxClientsManager.authorizedClient else{
        return
    }

    let listFolders = dropboxClient.files.listFolder(path: "")
    listFolders.response{ response, error in
        guard let result = response else{
            return
        }

        for entry in result.entries{
            print(entry)
        }
    }
    // Do any additional setup after loading the view, typically from a nib.
}

条目是>

  { 
      id = "id:0GMPvYwuVEAAAAAAAAAABw";
      name = "Folder A";
      "path_display" = "/Folder A";
      "path_lower" = "/folder a";
  }

我怎么才能找到这个条目是文件夹,它是否包含子文件夹？

Answer 1

你可以像这样entry在你的result.entries for循环内部投射

override func viewDidLoad() {
    super.viewDidLoad()

    guard let dropboxClient = DropboxClientsManager.authorizedClient else{
        return
    }

    for entry in result.entries{
       guard let file = entry as? Files.FolderMetadata else{
         return
       }

       // only folders
       print(entry)

       // *********  or 
       gurad let entry is Files.FolderMetadata else{
         return
       }

       // only folders
       print(entry)
    }
}