title: How do you scroll a GridLayout inside Kivy ScrollView?
body: <p>At the moment this is my kv code that is not scrollable:</p>
  
  <pre><code>BoxLayout:
      id: bl
      orientation: 'vertical'
      padding: 10, 10
      row_default_height: '48dp'
      row_force_default: True
      spacing: 10, 10
  
      GridLayout:
          id: layout_content
          cols: 1
          row_default_height: '20dp'
          row_force_default: True
          spacing: 0, 0
          padding: 0, 0
  
          Label:
              text: 'You don''t have any downloads. Please add new download from Home screen'
  </code></pre>
  
  <p>How do you make the above kv code scrollable? I know that Kivy ScrollView only accept one child, and I have already make GridLayout to be child of a new ScrollView. But it's not working. Any suggestion?</p>