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POReturning from an activity using navigateUpFromSameTask()
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  1. POReturning from an activity using navigateUpFromSameTask()
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    copied!<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>
 

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