java - Androidのデータベースからロードしたリストビューで検索する

Question

リストビューに完全にロードされているアプリケーションにデータベースがありますが、リストビューで検索を行うと機能せず、アプリがクラッシュしません。データベースからデータを取得してリストビューにロードするコードです。

    -------------DatabaseClass----
public Cursor getCursor() {
    // TODO Auto-generated method stub
    // SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder();
    // queryBuilder.setTables(TABLE_NAME);
    // openDataBase();

    Cursor c = null;
    try {
        String[] asColumnsToReturn = new String[] { "lang_from","_id" };
        c = myDataBase.query("words2", asColumnsToReturn, null, null, null,
                null, null);

    } catch (Exception e) {
        System.out.print("" + e);
    }
    return c;
}

     -----------MainActivity----------------
public class MainActivity extends Activity {

DatabaseClass myDbHelper;
private Cursor ourCursor = null;
private IngredientAdapter adapter = null;

ListView myListView;
EditText etSearch;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    etSearch = (EditText) findViewById(R.id.etsearch);
    myListView = (ListView) findViewById(R.id.listView1);
    myListView.setTextFilterEnabled(true);
    // = new DatabaseClass();
    myDbHelper = new DatabaseClass(this);

    try {

        myDbHelper.createDataBase();

    } catch (IOException ioe) {

        throw new Error("Unable to create database");

    }

    try {

        myDbHelper.openDataBase();
        ourCursor = myDbHelper.getCursor();
        startManagingCursor(ourCursor);
        try {
            adapter = new IngredientAdapter(this, ourCursor);
        } catch (Exception e) {
            System.out.print("" + e);
        }
        myListView.setAdapter(adapter);
    } catch (SQLException sqle) {

        throw sqle;

    }
    etSearch.addTextChangedListener(new TextWatcher() {

        @Override
        public void onTextChanged(CharSequence cs, int arg1, int arg2,
                int arg3) {
            // When user changed the Text
            // MainActivity.this.adapter.getFilter().filter(cs);
            Log.d("TAGGGGGGGG", cs.toString());
            adapter.getFilter().filter(cs);

            // adapter.notifyDataSetChanged();
//MainActivity.this.adapter.getFilter().filter(cs.toString());
        }

        @Override
        public void beforeTextChanged(CharSequence arg0, int arg1,
                int arg2, int arg3) {
            // TODO Auto-generated method stub

        }

        @Override
        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub
            // adapter.getFilter().filter(s.toString());

        }
    });
}

class IngredientAdapter extends CursorAdapter {
    @SuppressWarnings("deprecation")
    public IngredientAdapter(Context context, Cursor c) {
        super(context, c);
        // TODO Auto-generated constructor stub
    }

    @Override
    public void bindView(View row, Context ctxt, Cursor c) {
        // TODO Auto-generated method stub
        IngredientHolder holder = (IngredientHolder) row.getTag();
        holder.populateFrom(c, myDbHelper);
        Log.d("TAAAAAAAAAAAAAAAGGGGG", "GOOD");
    }

    @Override
    public View newView(Context ctxt, Cursor c, ViewGroup parent) {
        // TODO Auto-generated method stub
        LayoutInflater inflater = getLayoutInflater();
        View row = inflater.inflate(R.layout.row, parent, false);
        IngredientHolder holder = new IngredientHolder(row);
        row.setTag(holder);
        Log.d("TAAAAAAAAAAAAAAAGGGGG", "GOOD");
        return (row);
    }
}

class IngredientHolder {
    private TextView name = null;

    IngredientHolder(View row) {
        name = (TextView) row.findViewById(R.id.ingredientText);

    }

    void populateFrom(Cursor c, DatabaseClass r) {
        name.setText(r.getName(c));
    }
}
 }

助けてください。弱い英語で申し訳ありません