Hi,
I'm using a SimpleAdapter to display two strings on each row of a
ListView and want to be able to remove rows. The ListView initially
displays correctly but when I click a row to remove it a null pointer
error is thrown. Can't seem to find any documentation or examples
anywhere. Can anybody advise on the best way to do this?
public class add_pal extends Activity {
Button doneButton;
private ArrayAdapter<String> palAdapter;
List<Map<String, String>> pal_list;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.add_pal);
pal_list = new ArrayList<Map<String, String>>();
for (Pal p: hello_listview.arPals)
{ // arPals has
already been filled
Map<String, String> map = new HashMap<String, String>();
map.put("Name", p.name);
map.put("Title", p.title);
pal_list.add(map);
}
String[] from = {"Name", "Title"};
int[] to = {R.id.listItemName, R.id.listItemTitle};
SimpleAdapter palAdapter = new
SimpleAdapter(this.getApplicationContext(),
pal_list,
R.layout.listitem,
from,
to);
ListView listView = (ListView) findViewById(R.id.addPalList);
listView.setAdapter(palAdapter);
registerForContextMenu(listView);
listView.setOnItemClickListener(listView_clicked);
} // End of OnCreate
AdapterView.OnItemClickListener listView_clicked = new
AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView parent, View v, int
position, long id) {
palAdapter.remove(palAdapter.getItem(position));
PalAdapter.notifyDataSetChanged();
//
This section here is the bit not working
}
};
} // End of class
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