android ListActivity not working with custom adapter

Question

I am having trouble with what appears to be a simple use of a ListActivity with a custom adapter. Here is the adapter code:

public class CustomRowAdapter extends BaseAdapter
{
    private Context mContext;

    public CustomRowAdapter ( Context context )
    {
        mContext = context;
    }

    @Override
    public int getCount()
    {
        return 6;
    }

    @Override
    public Object getItem( int position )
    {
        return null;
    }

    @Override
    public long getItemId( int position )
    {
        return position;
    }

    @Override
    public View getView( int position, View convertView, ViewGroup parent )
    {
        LinearLayout rowLayout;

        if( convertView == null )
        {
            rowLayout = ( LinearLayout )LayoutInflater.from( mContext ).inflate( R.layout.list_item_layout, parent, false );
        }
        else
        {
            rowLayout = ( LinearLayout )convertView;
        }

        return rowLayout;
    }
}

and here's the activity:

public class MyListActivity extends ListActivity
{
    @Override
    public void onCreate( Bundle savedInstanceState )
    {
        super.onCreate( savedInstanceState );

        setContentView( R.layout.list_layout );
    }

    @Override
    public void onResume()
    {
        super.onResume();

        CustomRowAdapter rowAdapter = new CustomRowAdapter( this );
        setListAdapter( rowAdapter );
    }
}

list_item_layout is just a LinearLayout with a single TextView in it, so I would expect to see 6 identical items in my list, but the list is empty. I've stepped through CustomRowAdapter.getView() and it is being called with positions 0 through 5. I must be missing something simple. Why is the list appearing empty?

EDIT: The ListView has children in hierarchyviewer, so it looks like I may have an issue somewhere in my layouts. Here's the layout containing the ListView:

<LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">
    <TableLayout android:id="@+id/TableLayout01" android:layout_height="wrap_content" android:layout_width="fill_parent" android:stretchColumns="*" android:orientation="horizontal">
        <TableRow android:layout_height="wrap_content" android:id="@+id/TableRow01" android:layout_width="fill_parent">
            <Button android:layout_width="wrap_content" android:layout_gravity="left|center_vertical" android:minWidth="65dp" android:layout_height="wrap_content" android:id="@+id/back_button" android:text="@string/back"></Button>
            <TextView android:textColor="#FFFFFF" android:textStyle="bold" android:layout_gravity="center" android:layout_height="wrap_content" android:layout_width="wrap_content" android:textSize="16sp" android:text="@string/general_information"></TextView>
            <Button android:layout_width="wrap_content" android:layout_gravity="right|center_vertical" android:minWidth="65dp" android:layout_height="wrap_content" android:id="@+id/next_button" android:text="@string/next"></Button>
        </TableRow>
    </TableLayout>
    <ListView android:layout_weight="1" android:layout_height="wrap_content" android:layout_width="fill_parent" android:id="@android:id/list"></ListView>
</LinearLayout>

and here's the layout for the list items:

<LinearLayout android:id="@+id/linearLayout1" android:layout_width="fill_parent" android:layout_height="fill_parent" xmlns:android="http://schemas.android.com/apk/res/android">
    <TextView android:id="@+id/textView1" android:layout_height="wrap_content" android:text="TextView" android:layout_width="wrap_content" android:textColor="#FFFFFF"></TextView>
</LinearLayout>

Answer 1

Add android:orientation="vertical" to your top id/linearLayout1 (not the row).

On your row, you might want to add android:minHeight="?android:attr/listPreferredItemHeight" as well. That will keep your rows from getting too short.

Answer 2

You are not setting anything in your getView method. Check Efficient Adapter here is link