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POAndroid ExpandableListView with SimpleCursorTreeAdapter not refreshing
 

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  1. POAndroid ExpandableListView with SimpleCursorTreeAdapter not refreshing
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    <p>I'm new to this ExpandableListView and I desperately need your help please.</p> <p>I'm using the code below to create an ExpandableListView with SimpleCursorTreeAdapter because I'm geting my data from SQLite database. It all works fine, but I can't find a solution on how to add some items to the parent ListView (for now). I'd like to add a category with a click on a TextView.</p> <pre><code>public class ListViewExp extends ExpandableListActivity { private DBAdapter db; private Cursor getMatchigItems; private Cursor getAllCat; private ExpandableListView expListView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.testexpview); TextView tv1 = (TextView) findViewById(R.id.testtext); db = new DBAdapter(this); db.open(); getAllCat = db.getAllCategories(1); startManagingCursor(getAllCat); final SimpleCursorTreeAdapter cursorTreeAdapter = new SimpleCursorTreeAdapter( getApplicationContext(), getAllCat, R.layout.group_row, R.layout.group_row, new String[]{db.KEYCAT_TXTCATEGORYNAME, db.KEYCAT_ROWID}, new int[]{R.id.groupname}, R.layout.child_row, R.layout.child_row, new String[]{db.KEYITEMS_TXTITEMNAME, db.KEYITEMS_ROWID, db.KEYITEMS_ROWID}, new int[]{R.id.childname,R.id.rgb}) { @Override protected Cursor getChildrenCursor(Cursor groupCursor) { db.open(); getMatchigItems = db.getMatchingItems(groupCursor.getLong(0), 1); startManagingCursor(getMatchigItems); return getMatchigItems; } }; expListView = getExpandableListView(); setListAdapter(cursorTreeAdapter); tv1.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { db.open(); db.addMyCategory("TestCat1", ""); // getAllCat.requery(); cursorTreeAdapter.notifyDataSetChanged(); } }); db.close(); } } </code></pre> <p>Adding to the database works fine, but I see the new item only when restarting my app. I have tryed to requery the cursor getAllCat.requery(); , but when I do that it refreshes the list but it's empty (not even older item are displayed) like there is no data.</p> <p>Can anyone please give me some guidance on how to resolve this? Am I missing something?</p> <p>Should I do the onResume override or should I do this completely different? Thanks a million in advance! Best regards!</p>
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    1. COSorry strangely found an answer right after ...`getAllCat = db.getAllCategories(1);` `cursorTreeAdapter.changeCursor(getAllCat);` Any better suggestions are welcome. Thanks
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      1. POAndroid ExpandableListView with SimpleCursorTreeAdapter not refreshing
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    2. COI am doing something similar HERE http://stackoverflow.com/questions/10611927/simplecursortreeadapter-and-cursorloader
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      1. POAndroid ExpandableListView with SimpleCursorTreeAdapter not refreshing
      1. UStoobsco42
 

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