How to remove icons from the BottomNavigationBar?

Question

I just need the the label in my BottomNavigationBarItem's but I cant find a way to remove them.
You can hide the labels with showSelectedLabels and showUnselectedLabels set to false but there are no equivalent for Icons.

Constructor:

BottomNavigationBar({
    Key key,
    @required this.items,
    this.onTap,
    this.currentIndex = 0,
    this.elevation = 8.0,
    BottomNavigationBarType type,
    Color fixedColor,
    this.backgroundColor,
    this.iconSize = 24.0,
    Color selectedItemColor,
    this.unselectedItemColor,
    this.selectedIconTheme = const IconThemeData(),
    this.unselectedIconTheme = const IconThemeData(),
    this.selectedFontSize = 14.0,
    this.unselectedFontSize = 12.0,
    this.selectedLabelStyle,
    this.unselectedLabelStyle,
    this.showSelectedLabels = true,
    bool showUnselectedLabels,
  })

Answer 1

A better way I think is to configure the BottomNavigationBar. Just add this line and it will work fine. No need to add lines to each item

    selectedIconTheme: IconThemeData(opacity: 0.0, size: 0),
    unselectedIconTheme: IconThemeData(opacity: 0.0, size: 0),

ex.

bottomNavigationBar: BottomNavigationBar(
    items: const <BottomNavigationBarItem>[
      BottomNavigationBarItem(
        icon: Icon(Icons.home),
        label: 'Home',
      ),
      BottomNavigationBarItem(
        icon: Icon(Icons.business),
        label: 'Business',
      ),
    ],
    currentIndex: _selectedIndex,
    selectedIconTheme: IconThemeData(opacity: 0.0, size: 0),
    unselectedIconTheme: IconThemeData(opacity: 0.0, size: 0),
    selectedItemColor: Colors.amber[800],
    onTap: _onItemTapped,