如何过滤/搜索预先填充的SQLite数据的ListView？

// 创建SQLite数据库并填充数据
SQLiteOpenHelper dbHelper = new SQLiteOpenHelper(context, "mydb", null, 1) {
    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL("CREATE TABLE IF NOT EXISTS mytable (id INTEGER PRIMARY KEY, name TEXT)");
        db.execSQL("INSERT INTO mytable (name) VALUES ('John')");
        db.execSQL("INSERT INTO mytable (name) VALUES ('Alice')");
        db.execSQL("INSERT INTO mytable (name) VALUES ('Bob')");
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // 升级数据库时的操作
    }
};

// 创建ListView并适配数据
ListView listView = findViewById(R.id.listView);
Cursor cursor = dbHelper.getReadableDatabase().rawQuery("SELECT * FROM mytable", null);
SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, android.R.layout.simple_list_item_1, cursor, new String[]{"name"}, new int[]{android.R.id.text1});
listView.setAdapter(adapter);

// 实现过滤/搜索功能
EditText searchEditText = findViewById(R.id.searchEditText);
searchEditText.addTextChangedListener(new TextWatcher() {
    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        adapter.getFilter().filter(s);
    }

    @Override
    public void afterTextChanged(Editable s) {
    }
});