title: Hide context menu without disabling text selection
body: <p>The goal is to show a custom context menu, on top of the selected text. 
  Tried clearing the menu items in onSupportActionModeStarted:</p>
  
  <pre><code>@Override
  public void onSupportActionModeStarted(android.support.v7.view.ActionMode mode) {
      super.onSupportActionModeStarted(mode);
      mode.getMenu().clear();
      mode.getMenu().close();
  
  }
  </code></pre>
  
  <p>but the context menu is still showing with a blank background and back button and with no items inside </p>
  
  <p>I tried setting <code>&lt;item name="windowActionModeOverlay"&gt;false&lt;/item&gt;</code> to the AppTheme but to no avail.</p>
  
  <p>Is there any way to do this?</p>