title: How to pass context from activity to activity?
body: <p>I have a main activity, and it summons another activity to display some data.</p>
  
  <p>I have a private database helper object that I use throughout the main activity code. Is there a way to pass the context of my main activity to my sub activity in an elegant way? (ie, from subclass, something like <code>getCallingActivityContext()</code>)</p>
  
  <p>I could always create new database helper objects.</p>