How to Create a BottomNavigationBar with Flutter: Создание BottomNavigationBar с использованием IndexedStack.
Статья: https://developer.school/how-to-create-a-bottom-tab-bar-with-flutter/
Видео: https://youtu.be/Qe_OYfEasnQ
Статья: https://developer.school/how-to-create-a-bottom-tab-bar-with-flutter/
Видео: https://youtu.be/Qe_OYfEasnQ