(Android™) List all Folders

Demonstrates how to retrieve a list of all folders.

Note: Let's say we have a directory tree with the following folders in Google Drive:

/AAWorkArea
/AAWorkArea/FolderA
/AAWorkArea/FolderB
/Folder2
/Folder2/FolderA

This would be our result. Notice that the "name" of each folder is NOT the full path, but just the final folder name. To distinguish between the two FolderA's, we would need to get the parent information for each.

---- Page 1 ----
name: FolderB
id: 1ep8p9wsCV8S_xTI7G1-qEuf8RNO_9250
mimeType: application/vnd.google-apps.folder
-
name: FolderA
id: 1h_BWJGEn7L7aFV5SN8iOKv91uxddTbY8
mimeType: application/vnd.google-apps.folder
-
name: Folder2
id: 1cvDIF78KSDuUyrU_VCKRSRbmENWkHNqV
mimeType: application/vnd.google-apps.folder
-
name: AAWorkArea
id: 0BzXkF-yZEO0-ank3VndfZTZsdlk
mimeType: application/vnd.google-apps.folder
-
name: FolderA
id: 1Fksv-TfA1ILii1YjXsNa1-rDu8Cdrg72
mimeType: application/vnd.google-apps.folder
-

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = true;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // This example uses a previously obtained access token having permission for the 
    // Google Drive scope.

    CkAuthGoogle gAuth = new CkAuthGoogle();
    gAuth.put_AccessToken("GOOGLE-DRIVE-ACCESS-TOKEN");

    CkRest rest = new CkRest();

    // Connect using TLS.
    boolean bAutoReconnect = true;
    success = rest.Connect("www.googleapis.com",443,true,bAutoReconnect);

    // Provide the authentication credentials (i.e. the access token)
    rest.SetAuthGoogle(gAuth);

    // Get 50 results per page for testing.  (The default page size is 100, with a max of 1000.
    rest.AddQueryParam("pageSize","50");

    // Get all entries that are folders.
    rest.AddQueryParam("q","mimeType = 'application/vnd.google-apps.folder'");

    CkJsonObject json = new CkJsonObject();
    json.put_EmitCompact(false);

    int i;
    int numFiles;

    // Send the request for the 1st page.
    String jsonResponse = rest.fullRequestNoBody("GET","/drive/v3/files");

    int pageNumber = 1;
    String pageToken;
    boolean bContinueLoop = rest.get_LastMethodSuccess() and (rest.get_ResponseStatusCode() == 200);

    while (bContinueLoop == true) {

        Log.i(TAG, "---- Page " + String.valueOf(pageNumber) + " ----");

        // Iterate over each file in the response and show the name, id, and mimeType.
        json.Load(jsonResponse);

        numFiles = json.SizeOfArray("files");
        i = 0;
        while (i < numFiles) {
            json.put_I(i);
            Log.i(TAG, "name: " + json.stringOf("files[i].name"));
            Log.i(TAG, "id: " + json.stringOf("files[i].id"));
            Log.i(TAG, "mimeType: " + json.stringOf("files[i].mimeType"));
            Log.i(TAG, "-");
            i = i + 1;
            }

        // Get the next page of files.
        // If the "nextPageToken" is present in the JSON response, then use it in the "pageToken" parameter
        // for the next request.   If no "nextPageToken" was present, then this was the last page of files.
        pageToken = json.stringOf("nextPageToken");
        bContinueLoop = false;
        boolean bHasMorePages = json.get_LastMethodSuccess();
        if (bHasMorePages == true) {
            rest.ClearAllQueryParams();
            rest.AddQueryParam("pageSize","50");
            rest.AddQueryParam("pageToken",pageToken);
            rest.AddQueryParam("q","mimeType = 'application/vnd.google-apps.folder'");

            jsonResponse = rest.fullRequestNoBody("GET","/drive/v3/files");
            bContinueLoop = rest.get_LastMethodSuccess() and (rest.get_ResponseStatusCode() == 200);
            pageNumber = pageNumber + 1;
            }

        }

    if (rest.get_LastMethodSuccess() != true) {
        Log.i(TAG, rest.lastErrorText());
        return;
        }

    // A successful response will have a status code equal to 200.
    if (rest.get_ResponseStatusCode() != 200) {
        Log.i(TAG, "response status code = " + String.valueOf(rest.get_ResponseStatusCode()));
        Log.i(TAG, "response status text = " + rest.responseStatusText());
        Log.i(TAG, "response header: " + rest.responseHeader());
        Log.i(TAG, "response JSON: " + jsonResponse);
        return;
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}