How to build a bottom navigation bar in Flutter
Blog post from LogRocket
Flutter's BottomNavigationBar widget is a versatile tool for enhancing navigation in mobile applications by allowing users to switch between different content categories with ease. This comprehensive guide provides a detailed walkthrough on implementing and customizing the BottomNavigationBar in Flutter apps, demonstrating its use with code examples. It covers essential features such as setting up item selection, displaying corresponding pages, and customizing the bar's appearance, including background color, icon size, and selected item highlights. The tutorial further explores persistent state management using IndexedStack, and introduces the persistent bottom nav bar package for more robust state handling. It also discusses advanced customization options, such as incorporating TabBar for subcategories, applying custom animations for smoother transitions, and implementing techniques to hide the BottomNavigationBar during scrolling to maximize screen space. This resource serves as a valuable reference for developers seeking to integrate and tailor BottomNavigationBar in their Flutter projects.