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POnotifyDataSetChanged in Curser adapter not working with listfragment
 

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  1. POnotifyDataSetChanged in Curser adapter not working with listfragment
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    <p>I have a listfragment that displays a list from a database. I have everthing working correctly except for a small item that I can't seeem to clear up. The list view looks something like this.</p> <pre><code>----------------------------------------------------- text text text | some more text | delete row button | ----------------------------------------------------- </code></pre> <p>My problem: when a user presses the delete row button the row is deleted from the database but will not be removed from the screen until the activity is stopped and started again.</p> <p>I know that <code>notifyDataSetChanged()</code> is the preferred method for updating these lists but it does not seem to do anything... Anyhow, below is my code for the cursor adapter where <code>notifyDataSetChanged()</code> is called.</p> <pre><code>public class CalcCursorAdapter extends SimpleCursorAdapter{ private Context mContext; private ListView mListView; private int mLayout; private Cursor mcursor; protected static class ViewHolder { protected TextView text; protected ImageButton button; private int position; } @SuppressWarnings("deprecation") public CalcCursorAdapter(Context context, int layout, Cursor c, String[] from, int[] to) { super(context, layout, c, from, to); this.mContext = context; this.mLayout = layout; this.mcursor = c; //mListView = .getListView(); } @Override public void bindView(View view, Context context, Cursor cursor) { TextView summary = (TextView)view.findViewById(R.id.calctvPrice); TextView savings = (TextView)view.findViewById(R.id.calctvSavings); TextView percentOff = (TextView)view.findViewById(R.id.calctvpercentOff); summary.setText(cursor.getString(cursor.getColumnIndexOrThrow("qcFinalPrice"))); } @Override public View newView(Context context, Cursor cursor, ViewGroup parent) { ViewHolder holder = new ViewHolder(); LayoutInflater inflater = LayoutInflater.from(context); View v = inflater.inflate(R.layout.calc_list_item, parent, false); holder.button = (ImageButton) v.findViewById(R.id.qcbtnDelete); holder.button.setOnClickListener(deleteButton); holder.position = cursor.getInt(cursor.getColumnIndexOrThrow("_id")); bindView(v, context, cursor); v.setTag(holder); return v; } private OnClickListener deleteButton = new OnClickListener() { @SuppressWarnings("deprecation") public void onClick(View v){ View view = (View) v.getParent(); ViewHolder holder = (ViewHolder) view.getTag(); int position = holder.position; DbHelper mDbHelper; mDbHelper = new DbHelper(mContext); mDbHelper.open(); mDbHelper.deleteCalc(position); mDbHelper.close(); String test = Integer.toString(position); Toast.makeText(mContext.getApplicationContext(), test, Toast.LENGTH_SHORT).show(); notifyDataSetChanged(); //ListView list = getListView(); } }; public long qcItemId(int position) { return position; } } </code></pre> <p>Thank you for your help.</p> <p>UPDATE:</p> <p>New button Code within my adapter:</p> <pre><code>private OnClickListener deleteButton = new OnClickListener() { @SuppressWarnings("deprecation") public void onClick(View v){ v.invalidate(); View view = (View) v.getParent(); view.invalidate(); ViewHolder holder = (ViewHolder) view.getTag(); int position = holder.position; DbHelper mDbHelper; mDbHelper = new DbHelper(mContext); mDbHelper.open(); mDbHelper.deleteCalc(position); mDbHelper.close(); String test = Integer.toString(position); Toast.makeText(mContext.getApplicationContext(), test, Toast.LENGTH_SHORT).show(); Cursor newCursor = getCursor(); changeCursor(newCursor); notifyDataSetChanged(); //ListView list = getListView(); } }; </code></pre>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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