从Android中的Google云端硬盘下载文件

Question

I followed this tutorial in my android app, and I can login, select, view file from my Google Drive account. How can I download a file to my cache folder when I know the DriveId of the file. I know I can obtain drivefile like this.

DriveFile driveFile = mFileId.asDriveFile();

Can I convert this driveFile to File . I tried to cast it, didn't work. In this link there is a method for downloading the file, but i can't find files() or executeMediaAndDownloadTo in my Drive driveService . Is this for an old version? I couldn't find anything useful on the internet for this.

Answer 1

Try

DriveApi.DriveContentsResult result = id.asDriveFile()
                  .open(client, DriveFile.MODE_READ_ONLY, null).await();

check status is good with

result.getStatus().isSuccess()

then access the file with

result.getDriveContents().getInputStream() 

client is your GoogleApiClient instance

Write the InputStream to a File if you want to create a copy of the file.