title: Opening a context menu without registering the view
body: <p>How can I open a context menu for a view without registering it using <code>registerForContextMenu()</code>?</p>
  
  <p>My activity overrides <code>onTouchEvent</code> to detect motion, and if I use <code>registerForContextMenu()</code> it stops working. I'm detecting a long press, so I'd like to forward that request to a method that would build the menu for me, but don't know if it can work that way.</p>