title: Launch an Android dialog box from a View
body: <p>I have an Android Activity that uses a class that I developed that extends a View (let's call it FooView).  I'd like to launch a dialog box when a particular event happens in FooView.  It seems from all I've read that the dialog box must be launched from the Activity class using showDialog().  I can't seem to find any example showing how to launch a dialog from a View.</p>
  
  <p>So I'm wondering how this can be accomplished.  Do I need to send an Intent from FooView to the Activity?  Or register a callback from the Activity that is called by FooView?</p>
  
  <p>Thanks in advance.</p>