title: Navigating Up to an activity that expects extras
body: <p>I have Activities A, B, and C in my app and they flow in that order.  If I implement the Up button in C, I want it to go back to B.  The code stub that Eclipse generated is this:</p>
  
  <pre><code>@Override
  public boolean onOptionsItemSelected(MenuItem item) 
  {
      switch (item.getItemId())
      {
          case android.R.id.home:
              // This ID represents the Home or Up button. In the case of this
              // activity, the Up button is shown. Use NavUtils to allow users
              // to navigate up one level in the application structure. For
              // more details, see the Navigation pattern on Android Design:
              //
              // http://developer.android.com/design/patterns/navigation.html#up-vs-back
              //
              NavUtils.navigateUpFromSameTask(this);
              return true;
      }
  
      return super.onOptionsItemSelected(item);
  }
  </code></pre>
  
  <p>However, B expects extras to be passed from A in its onCreate method.  The relationship between B and C is that C allows the user to set some settings that affect how B is displayed.  I'm currently handling saving the changes in C in onPause().  Should I just finish() C when user presses Up instead of calling navigateUpFromSameTask(this)?</p>