Set thumbnail image for uploading on Google Drive

Question

I use the following code to set thumb nail for file to upload on Google Drive :

// Set thumb nail path                  
String thumbnail_path =         


        

Answer 1

You need to provide the Base64 encoded image content instead of the path.

final Thumbnail thumbnail = new Thumbnail();                    
thumbnail.setMimeType("image/jpeg");            
thumbnail.setImage(base64encodedContent);

Answer 2

You decode the data from the getData method that are not encoded.

You should also use Base64.encodeBase64URLSafeString instead of Base64.encodeBase64String. You can use File.Thumbnail.encodeImage method as a convenience. That will do the encoding for you.

Replace this:

byte[] data = Base64.decodeBase64(getData(thumbnail_path));  
thumbnail.setImage(Base64.encodeBase64String(data));

with this:

byte[] data = getData(thumbnail_path);  
thumbnail.encodeImage(data);