Example With Page Changes

[yusrenaltair]

I'm a flutter newbie. I tried with the example you gave, and it worked. But I am confused how to apply with page changes while maintaining the bottom bar, like in TabBarView. as I know, the function is placed here. thought.

void changePage(int index) {
    setState(() {
      currentIndex = index;
    });
  }

Thank you for your attention.