在Android中将已创建的文件夹添加到Google云端硬盘

Question

I want use google drive in my android app to backup folders that contain text, image and video files.

My problem is that while I can upload each text, image and video file separately using the Drive API, I can't see a way to upload entire folders at once so that the organisation remains intact.

The organisation of the folders is as follows:

app>Projects>notes>photos/text/video

Ideally I would like to upload the folder "app" and along with all of its contents while keeping the parent/child structure.

Answer 1

Are you using Google Drive Api for Android or the REST Api ?

If you are using the REST API you can create a folder like this :

        private String createFolder() throws IOException {
        File fileMetadata = new File();
        fileMetadata.setName("FOLDER_NAME");
        fileMetadata.setMimeType("application/vnd.google-apps.folder");

        File file = mService.files().create(fileMetadata)
                .setFields("id")
                .execute();
        String Folderid =  file.getId();

And then with the file id you do this :

File nFile= new File();

        nFile.setName("FILE_NAME");
        nFile.setParents(Collections.singletonList(Folderid));
        File file = mService.nFile().create(fileMetadata).execute();                      

The setParents is used to create the file INSIDE the parent which is the folder just created in this example.