3/17/2023 0 Comments Flutter buttonbar![]() ![]() You may want to change the background color of the BottomNavigationBar to match your brand. Let’s zoom in on some of the properties you can customize. The illustration below shows how the code translates into the design:īottomNavigationBar has a lot of options to customize it per your need. Now we have BottomNavigationBar up and running: Showing one page in the center of the screen from _pages based on the _selectedIndex of the item will do the rest of the magic. For simplicity, we’re just showing a big icon of the item itself. So let’s go ahead and great it: //NewĬhild: _pages.elementAt(_selectedIndex), //New Simply assigning a currently selected item index to _selectedIndex and doing setState will show the item as selected in BottomNavigationBar.Īs of now, we don’t have any page to show based on the selected item. The _onItemTapped() callback is assigned to onTap of BottomNavigationBar, which returns the index when the item is tapped. _selectedIndex is given to the currentIndex property. The _selectedIndex variable holds the value of the currently selected item. To show the selection of other items, we’ll use two properties: onTap and currentIndex. It does not change the selection yet as we click on the other items: The above code just displays the BottomNavigationBar with the first item selected as the default. BottomNavigationBarItem is simply used to show the actual item inside BottomNavigationBar. items accept a widget of a type BottomNavigationBarItem. Title: const Text('BottomNavigationBar Demo'),īottomNavigationBar: BottomNavigationBar(īottomNavigationBar has a required property called items. The BottomNavigationBar widget is given to the bottomNavigationBarproperty of Scaffold: Scaffold( The finished product will look as follows: Now let’s walk through the process of creating a simple BottomNavigationBar step by step. BottomNavigationBar allows you to select one item at a time and quickly navigate to a given page. Usually, it’s used to show around three to five items. How to include TabBar with BottomNavigationBarīottomNavigationBar is a widget that displays a row of small widgets at the bottom of a Flutter app.What is BottomNavigationBar in Flutter?. ![]() We’ll demonstrate how it works, walk through some use cases, and show you how to customize the BottomNavigationBar widget in your Flutter app. In this tutorial, we’ll tell you everything you need to know about BottomNavigationBar in Flutter. In Flutter apps, the BottomNavigationBar widget enables users to see any one category as the app starts and quickly look at the others with just the tap of a finger. The Google Play Store app, for example, presents its content in categories such as games, apps, movies, and books. Mobile applications often have various categories of content to offer. How to build a bottom navigation bar in Flutter Over the last seven-plus years, I've been developing and leading various mobile apps in different areas. Pinkesh Darji Follow I love to solve problems using technology that improves users' lives on a major scale. ![]()
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