public class SampleListActivity extends ListActivity {

  private static final String[] PROJECTION = new String[] {"_id", "text_column"};

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    // Performs a "managed query" to the ContentProvider. The Activity 
    // will handle closing and requerying the cursor.
    //
    // WARNING!! This query (and any subsequent re-queries) will be
    // performed on the UI Thread!!
    Cursor cursor = managedQuery(
        CONTENT_URI,  // The Uri constant in your ContentProvider class
        PROJECTION,   // The columns to return for each data row
        null,         // No where clause
        null,         // No where clause
        null);        // No sort order

    String[] dataColumns = { "text_column" };
    int[] viewIDs = { R.id.text_view };
 
    // Create the backing adapter for the ListView.
    //
    // WARNING!! While not readily obvious, using this constructor will 
    // tell the CursorAdapter to register a ContentObserver that will
    // monitor the underlying data source. As part of the monitoring
    // process, the ContentObserver will call requery() on the cursor 
    // each time the data is updated. Since Cursor#requery() is performed 
    // on the UI thread, this constructor should be avoided at all costs!
    SimpleCursorAdapter adapter = new SimpleCursorAdapter(
        this,                // The Activity context
        R.layout.list_item,  // Points to the XML for a list item
        cursor,              // Cursor that contains the data to display
        dataColumns,         // Bind the data in column "text_column"...
        viewIDs);            // ...to the TextView with id "R.id.text_view"

    // Sets the ListView's adapter to be the cursor adapter that was 
    // just created.
    setListAdapter(adapter);
  }
}