private void saveFileToDrive() {
        // Start by creating a new contents, and setting a callback.
        Log.i(tag, "Creating new contents.");
        Toast.makeText(context,"Creating new contents.", Toast.LENGTH_LONG).show();
        String fileName = mSettings.getString("directory", "") + "/" + Fragment_main.dateFormat.format(new Date());
        File file = new File(fileName + ".jpg");
        BitmapFactory.Options bmOptions = new BitmapFactory.Options();

//        Bitmap bitmap = BitmapFactory.decodeFile(jpg.getAbsolutePath(),bmOptions);

        if(file.exists())
            image =BitmapFactory.decodeFile(file.getAbsolutePath(),bmOptions);
      else
            return;
        Drive.DriveApi.newDriveContents(mGoogleApiClient).setResultCallback(new ResultCallback<DriveApi.DriveContentsResult>() {

            @Override
            public void onResult(DriveApi.DriveContentsResult result) {

                if (!result.getStatus().isSuccess()) {
                    Log.i(tag, "Failed to create new contents.");
                    Toast.makeText(context,"Failed to create new contents.", Toast.LENGTH_LONG).show();

                    return;
                }
                // Otherwise, we can write our data to the new contents.
                Log.i(tag, "New contents created.");
                Toast.makeText(context,"New contents created. ", Toast.LENGTH_LONG).show();

                // 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.");
                    Toast.makeText(context,"Unable to write file contents.", Toast.LENGTH_LONG).show();

                }
                // 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").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 (Exception e) {
                    Log.i(tag, "Failed to launch file chooser.");
                }
            }
        });
    }