title: libGDX: input processor not working with Group
body: <p>I have a Group which i have added in stage in my screen  </p>
  
  <pre><code>//Code in show() method of my screen
  MyGroup myGroup = new MyGroup(); 
  Stage stage = new Stage();
  stage.add(myGroup);
  //And also there are few more actors which are omitted
  Gdx.input.setInputProcessor(stage);
  
  //Code in my group
  public MyGroup extends Group implements InputProcessor{
  //Many methods and attributes and a constructor
  //Overridden methods of input listener.
  </code></pre>
  
  <p>In my group I have 5 actors which can be swapped with one another so, I dont want to handle any input in individual actors. I want to do it in the group.</p>
  
  <p>But none of the methods are being invoked when i touch/touchDrag.</p>
  
  <p>Please help.</p>