I am working on an application which needs access to Google Photos from Google Drive.
Is it possible to access it?
I am not referring to the images from the My Drive in Google Drive.
Yes it is possible please check below link i have updated my answer, you can also fetch photos from google drive like this
GTLRDriveQuery_FilesList *query = [GTLRDriveQuery_FilesList query];
query.q = @"mimeType='image/jpeg'";
query.spaces = @"photos";
query.pageSize = 200;
query.fields = @"nextPageToken,files(id,name,mimeType,thumbnailLink,originalFilename)";
[self.service executeQuery:query completionHandler:^(GTLRServiceTicket *ticket,
GTLRDrive_FileList *result, NSError *error)
For full details check below link.