I am using Google_Nav_Bar and i didn't know how to put code on the page should i create a new file for everypage? and how to control it?

google_nav_bar: ^5.0.6 here is my code in homepage enter link description here

CodePudding user response：

Please post code using Code Sample next time. I've never used Google_Nav_Bar but it looks like you're missing a setState call.

selectedIndex: _selectedIndex,
          onTabChange: (index) {
            setState(() {
              _selectedIndex = index;
            });

CodePudding user response：

Keep in your mind, nav bar is just separate widget (an independence thing). You should change "body" widget when user click on each items in that navbar.