Round radius bottom navigation bar

home.dart

Widget get bottomNavigationBar {
    const double _iconSize = 36;
    Widget _emptyText = Container(
      width: 0,
      height: 0,
    );
    if (Platform.isAndroid) {
      _emptyText = Text('');
    }
    return ClipRRect(
      borderRadius: BorderRadius.all(Radius.circular(_iconSize)),
      child: BottomNavigationBar(
        items: <BottomNavigationBarItem>[
          BottomNavigationBarItem(
              icon: Icon(
                Icons.home,
              ),
              title: _emptyText),
          BottomNavigationBarItem(
              icon: Icon(
                Icons.search,
              ),
              title: _emptyText),
          BottomNavigationBarItem(
              icon: Icon(
                Icons.shopping_basket,
              ),
              title: _emptyText),
          BottomNavigationBarItem(
              icon: Icon(
                Icons.message,
              ),
              title: _emptyText),
          BottomNavigationBarItem(
              icon: UserAvator.bottomBarIcon(url: _pageData['user_avatar_url']),
              title: _emptyText)
        ],
        onTap: (value) {
          setState(() {
            _selectedIndex = value;
          });
        },
        iconSize: _iconSize,
        currentIndex: _selectedIndex,
        unselectedItemColor: MarcheColor.LightGrey,
        selectedItemColor: MarcheColor.Red,
        showSelectedLabels: false,
        showUnselectedLabels: false,
        type: BottomNavigationBarType.fixed,
      ),
    );
  }