title: How to share image to Google Classroom in iOS?
body: <p>I want share an image within my application to Google Classroom. </p>
  
  <pre><code>NSData* data = UIImagePNGRepresentation(_contentImageView.image);
  NSString* base64Str = [data base64EncodedStringWithOptions:0];
  [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"https://classroom.google.com/share?img=%@",base64Str]] options:@{@"img": base64Str} completionHandler:nil];
  </code></pre>
  
  <p>Tried with above code to share image directly to their URL by encoding image data but no result. Couldn't find proper documentation.So how to share image to Google Classroom?</p>