Apps listactivity not responding to click

[airswit]

Hi All,
I have a ListActivity with a custom layout, but when i overload onListItemClick method, the code is not called. can anyone help?!

XML code for the list item's layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:background="#ffffffff"
    >
    <TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@android:id/text1"
    android:layout_weight="1"
    android:background="#ff000000"
    />
    <CheckBox
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@android:id/checkbox"
    android:layout_weight="0"
    />
    
</LinearLayout>

Java code:

public class EditRecordsMenu extends ListActivity {
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        
        Intent i = getIntent();
        if(i.getData() == null) {
            i.setData(CONTENT_URI);
        }
        Cursor c = managedQuery(getIntent().getData(), null, null, null, null);
        setListAdapter(new MyCursorAdapter(this,
                R.layout.record_list_item,c,
                new String[] {DATE},new int[] {android.R.id.text1}));
        getListView().setOnCreateContextMenuListener(this);
    }

    private class MyCursorAdapter extends SimpleCursorAdapter {

        public MyCursorAdapter(Context context, int layout, Cursor c,
                String[] from, int[] to) {
            super(context, layout, c, from, to);
            setViewBinder(new MyViewBinder());
        }
        private class MyViewBinder implements ViewBinder
        {
            public boolean setViewValue(View view, Cursor cursor, int columnIndex)
            {
                if(columnIndex==cursor.getColumnIndex(DATE)) {
                    String date = MileageData.getDateFormatter().format(cursor.getLong(columnIndex));
                    ((TextView)view).setText( date);
                    return true;
                }
                return false;
            }

        } 
    }

    @Override
    protected void onListItemClick(ListView l, View v, int position, long id) {
        super.onListItemClick(l, v, position, id);
        Uri uri = ContentUris.withAppendedId(getIntent().getData(), id);
        
        String action = getIntent().getAction();
        if (Intent.ACTION_PICK.equals(action) || Intent.ACTION_GET_CONTENT.equals(action)) {
            // The caller is waiting for us to return a note selected by
            // the user.  The have clicked on one, so return it now.
            setResult(RESULT_OK, new Intent().setData(uri));
        } else {
            // Launch activity to view/edit the currently selected item
            startActivity(new Intent(Intent.ACTION_EDIT, uri));
        }
    }

Thanks!