Widget _buildOther(BuildContext context) {
  final renderBox = navBarkey.currentContext?.findRenderObject() as RenderBox?;
  final indexList = _list.map((item) => item['index'] as String).toList();
  return TDButton(
    text: '胶囊索引',
    isBlock: true,
    size: TDButtonSize.large,
    theme: TDButtonTheme.primary,
    type: TDButtonType.outline,
    onTap: () {
      Navigator.of(context).push(
        TDSlidePopupRoute(
          slideTransitionFrom: SlideTransitionFrom.right,
          modalTop: renderBox?.size.height,
          builder: (context) {
            return Container(
              color: Colors.white,
              child: TDIndexes(
                indexList: indexList,
                capsuleTheme: true,
                builderContent: (context, index) {
                  final list = _list.firstWhere((element) => element['index'] == index)['children'] as List<String>;
                  return TDCellGroup(
                    cells: list
                        .map((e) => TDCell(
                              title: e,
                            ))
                        .toList(),
                  );
                },
              ),
            );
          },
        ),
      );
    },
  );
}