Google drive API on android, I can not make this example work

I honestly see your example and it does not seem to work, in fact you need a Bitmap to add through the dialog of Google Drive

This is a method which receives the bitmap of the image to be added to Google Drive:

    //Create a new file and save it to Drive.
   private void saveFileToDrive(Bitmap image) {
    // Start by creating a new contents, and setting a callback.
    Log.i(TAG, "saveFileToDrive() Creating new content.");
    Drive.DriveApi.newDriveContents(mGoogleApiClient).setResultCallback(new ResultCallback<DriveContentsResult>() {
                @Override
                public void onResult(DriveContentsResult result) {
                    // If the operation wasn't successful, return
                    if (!result.getStatus().isSuccess()) {
                        Log.e(TAG, "Failed to create new content!.");
                        return;
                    }
                    Log.i(TAG, "New content has been created.");
                    // Get an output stream for the contents.
                    OutputStream outputStream = result.getDriveContents().getOutputStream();
                    // Write the bitmap data from it.
                    ByteArrayOutputStream bitmapStream = new ByteArrayOutputStream();
                    image.compress(Bitmap.CompressFormat.PNG, 100, bitmapStream);
                    try {
                        outputStream.write(bitmapStream.toByteArray());
                    } catch (IOException e1) {
                        Log.i(TAG, "Unable to write file contents.");
                    }
                    // Create the initial metadata - MIME type and title.
                    // Note that the user will be able to change the title later.
                    MetadataChangeSet metadataChangeSet = new MetadataChangeSet.Builder()
                            .setMimeType("image/jpeg").setTitle("myPhoto.png").build();
                    // Create an intent for the file chooser, and start it.
                    IntentSender intentSender = Drive.DriveApi
                            .newCreateFileActivityBuilder()
                            .setInitialMetadata(metadataChangeSet)
                            .setInitialDriveContents(result.getDriveContents())
                            .build(mGoogleApiClient);
                    try {
                        startIntentSenderForResult(
                                intentSender, REQUEST_CODE_CREATOR, null, 0, 0, 0);
                    } catch (SendIntentException e) {
                        Log.i(TAG, "Failed to launch file chooser.");
                    }
                }
            });
}

Review this example that uses the camera to get the bitmap of the image to later upload to Google Drive.

You must use the Android-specific API , as indicated by Google. Be it through the class CreateFileActivityBuilder or using the% method % of createFile()

This is the official example of Google for Android, in which you can be inspired to create files in Drive. In that same repository of Github there are other examples, in the folder Demo .

Source: Google (Github)

import android.os.Bundle;

import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.drive.Drive;
import com.google.android.gms.drive.DriveApi.DriveContentsResult;
import com.google.android.gms.drive.DriveApi.DriveIdResult;
import com.google.android.gms.drive.DriveFolder;
import com.google.android.gms.drive.DriveFolder.DriveFileResult;
import com.google.android.gms.drive.DriveId;
import com.google.android.gms.drive.MetadataChangeSet;

import java.lang.Override;


/**
 * An activity to create a file inside a folder.
 */
public class CreateFileInFolderActivity extends BaseDemoActivity {

    private DriveId mFolderDriveId;

    @Override
    public void onConnected(Bundle connectionHint) {
        super.onConnected(connectionHint);
        Drive.DriveApi.fetchDriveId(getGoogleApiClient(), EXISTING_FOLDER_ID)
                .setResultCallback(idCallback);
    }

    final private ResultCallback<DriveIdResult> idCallback = new ResultCallback<DriveIdResult>() {
        @Override
        public void onResult(DriveIdResult result) {
            if (!result.getStatus().isSuccess()) {
                showMessage("Cannot find DriveId. Are you authorized to view this file?");
                return;
            }
            mFolderDriveId = result.getDriveId();
            Drive.DriveApi.newDriveContents(getGoogleApiClient())
                    .setResultCallback(driveContentsCallback);
        }
    };

    final private ResultCallback<DriveContentsResult> driveContentsCallback =
            new ResultCallback<DriveContentsResult>() {
        @Override
        public void onResult(DriveContentsResult result) {
            if (!result.getStatus().isSuccess()) {
                showMessage("Error while trying to create new file contents");
                return;
            }
            DriveFolder folder = mFolderDriveId.asDriveFolder();
            MetadataChangeSet changeSet = new MetadataChangeSet.Builder()
                    .setTitle("New file")
                    .setMimeType("text/plain")
                    .setStarred(true).build();
            folder.createFile(getGoogleApiClient(), changeSet, result.getDriveContents())
                    .setResultCallback(fileCallback);
        }
    };

    final private ResultCallback<DriveFileResult> fileCallback =
            new ResultCallback<DriveFileResult>() {
        @Override
        public void onResult(DriveFileResult result) {
            if (!result.getStatus().isSuccess()) {
                showMessage("Error while trying to create the file");
                return;
            }
            showMessage("Created a file: " + result.getDriveFile().getDriveId());
        }
    };
}