title: Returning from an activity using navigateUpFromSameTask()
body: <p>I have two activities, A and B.  When activity A is first started, it accesses the <code>Intent</code> passed to it (because the <code>Bundle</code> is <code>null</code>, as it should be the first time through), and displays information accordingly:</p>
  
  <pre><code>CustInfo m_custInfo;
  ...
  protected void onCreate(Bundle savedInstanceState)
  {
      ...
      Bundle bundle = (savedInstanceState == null) ? getIntent().getExtras() : savedInstanceState;
      m_custInfo = (CustInfo) m_bundle.getSerializable("CustInfo");
      if (m_custInfo != null
          ...
  }
  </code></pre>
  
  <p>This works fine the first time through.  The <code>EditText</code> controls and <code>ListView</code> are filled out correctly.</p>
  
  <p>Now, when an item in the list is clicked, activity B is started to show the details:</p>
  
  <pre><code>m_custInfo = m_arrCustomers.get(pos);
  
  Intent intent = new Intent(A.this, B.class);
  intent.putExtra("CustInfo", m_custInfo); // CustInfo is serializable
  // printing this intent, it shows to have extras and no flags
  
  startActivityForResult(intent, 1);
  </code></pre>
  
  <p>Right before acivity B is started, the framework calls A's overridden <code>onSaveInstanceState()</code>:</p>
  
  <pre><code>protected void onSaveInstanceState(Bundle outState)
  {
      super.onSaveInstanceState(outState);
  
      outState.putSerializable("CustInfo", m_custInfo);
  }
  </code></pre>
  
  <p>In activity B, when the Up button is pressed in the action bar, I want to return to activity A and have it be in the same state as it was before:</p>
  
  <pre><code>public boolean onOptionsItemSelected(MenuItem item)
  {
      if (item.getItemId() == android.R.id.home)
      {
          Intent intent = NavUtils.getParentActivityIntent(this);
          // printing this intent, it shows to have flags but no extras
  
          NavUtils.navigateUpFromSameTask(this); // tried finish() here but that created an even bigger mess
          return true;
      }
      ...
  }
  </code></pre>
  
  <p>Herein lies the problem, when in <code>onCreate()</code> of activity A the second time, the <code>Bundle</code> parameter is <code>null</code> <strong>and</strong> <code>getExtras()</code> returns <code>null</code>.  Since <code>onSaveInstanceState()</code> was called, I would have expected the <code>Bundle</code> parameter to be non-<code>null</code>.</p>
  
  <p>I've read about this issue on other web sites, have tried the suggestions, but nothing works.</p>