Android: Custom Cursor Adapter Trouble?

You problem is that you were doing row. SetTag(row). You should setTag to ViewWrapper instead In cursor adapter, you should override bindview and newView instead of getView From 10,000 feet, the way it works is as follow GetView calls newView if the view is null, and call bindView after new view.

You problem is that you were doing row. SetTag(row). You should setTag to ViewWrapper instead.In cursor adapter, you should override bindview and newView instead of getView.

From 10,000 feet, the way it works is as follow GetView calls newView if the view is null, and call bindView after new view.

All adapter classes can follow the ArrayAdapter pattern of overriding getView() to define the rows. However, CursorAdapter and its subclasses have a default implementation of getView(). The getView() method inspects the supplied View to recycle.

If it is null, getView() calls newView(), then bindView(). If it is not null, getView() just calls bindView(). If you are extending CursorAdapter, which is used for displaying results of a database or content provider query, you should override newView() and bindView(), instead of getView().

All this does is remove your if() test you would have in getView() and put each branch of that test in an independent method, akin to the following: public View newView(Context context, Cursor cursor, ViewGroup parent) { LayoutInflater inflater=context. GetLayoutInflater(); View row=inflater. Inflate(R.layout.

Row, null); ViewWrapper wrapper=new ViewWrapper(row); row. SetTag(wrapper); return(row); } public void bindView(View row, Context context, Cursor cursor) { ViewWrapper wrapper=(ViewWrapper)row.getTag(); // actual logic to populate row from Cursor goes here }.

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