Work with Routes

[RodBr]

Hi,
this works fine with PageView on an app with a single StatefulWidget , but on a more complex app with multiple Stateful/Stateless classes connected using Navigator and each having a bottom navigation bar, the animation does not fire.

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key}) : super(key: key);

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int currentIndex = 0;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('MyPage'),
      ),
      body: Center(child: Text('MyPage')),
      bottomNavigationBar: BottomNavyBar(
        selectedIndex: currentIndex,
        showElevation: true,
        itemCornerRadius: 8,
        curve: Curves.easeInBack,
        onItemSelected: (index) => setState(() {
          Navigator.push(context,
              MaterialPageRoute(builder: (BuildContext context) => Page2()));
        }),
        items: [
          BottomNavyBarItem(
            icon: Icon(Icons.apps),
            title: Text('MyPage'),
            activeColor: Colors.red,
            textAlign: TextAlign.center,
          ),
          BottomNavyBarItem(
            icon: Icon(Icons.people),
            title: Text('Page2'),
            activeColor: Colors.purpleAccent,
            textAlign: TextAlign.center,
          ),
        ],
      ),
    );
  }
}

class Page2 extends StatefulWidget {
  @override
  _Page2State createState() => _Page2State();
}

class _Page2State extends State<Page2> {
  int currentIndex = 1;
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: BottomNavyBar(
        selectedIndex: currentIndex,
        showElevation: true,
        itemCornerRadius: 8,
        curve: Curves.easeInBack,
        onItemSelected: (index) => setState(() {
          Navigator.push(
              context,
              MaterialPageRoute(
                  builder: (BuildContext context) => MyHomePage()));
        }),
        items: [
          BottomNavyBarItem(
            icon: Icon(Icons.apps),
            title: Text('MyPage'),
            activeColor: Colors.red,
            textAlign: TextAlign.center,
          ),
          BottomNavyBarItem(
            icon: Icon(Icons.people),
            title: Text('Page2'),
            activeColor: Colors.purpleAccent,
            textAlign: TextAlign.center,
          ),
        ],
      ),
      body: Center(
        child: Text('Page2'),
      ),
    );
  }
}

[pedromassango]

You need to use a global currentIndex property if you want to track the BottomNavigationBar's current index in differents pages.

Note: this page does not take care of handling the current index value!

[RodBr]

That still wouldn't trigger the animation.