setState() or markNeedsBuild() called during build.

[pedromassango]

setState() or markNeedsBuild() called during build.

[magixyu]

Change your onTap call to below. The setState is called by this widget already. If you have setState, you get it called nested.

void _onTabTapped(int index) {
      if (index == 0) {
        _scaffoldKey.currentState.openDrawer();
      } else {
        _currentIndex = index;
      }
  }

[pedromassango]

@BoomPowbep You don't need setState() as said by @magixyu . Maybe I must explain it in README.

I'm going to close this for now. Feel free to open it later.

[alike010000]

This should work.

return Scaffold(
      body: _screens[_currentIndex],
      bottomNavigationBar: TitledBottomNavigationBar(
        currentIndex: _currentIndex,
        onTap: (int index) {
          if (_currentIndex != index) {
            setState(() {
              _currentIndex = index;
            });
          }
        },
        items: [
          TitledNavigationBarItem(title: 'Home', icon: Icons.home),
          TitledNavigationBarItem(title: 'settings', icon: Icons.settings)
        ],
      ),
    );