title: My TVertScrollBox doesn't want to scroll on Android
body: <p>I am using TVertScrollBox in a Delphi FireMonkey app that needs to work on Android, iOS, and Win32. My app works fine on Win32, that is, when the box is bigger than the available area, I get a scroll bar, and I can scroll it.</p>
  
  <p>However, on Android, the box just shows as many items as it can, but refuses to scroll. The expected behaviour is that I can drag a point inside the box and cause the box to scroll.</p>
  
  <p>Here is the relevant code:</p>
  
  <pre><code>with TVertScrollBox.Create( Self ) do
  begin
    Parent := Self;
    Align := TAlignLayout.alClient;
  
    // AddObject several times here...      
  
    UpdateStyle();
  
    Visible := True;
  end;
  </code></pre>