Create Bottom Navigation Menu in Flutter | Easy Flutter Tutorials with Dart

Flutter Bottom Navigation Menu The Bottom Navigation menu has become popular in the last few years for navigation between different UI. Many developers use bottom navigation Menu because most of the app is available now using this widget for navigation between different screens. #bottomnaviationMenu #flutter #tutorial #beginners #example #bottomnavigation #navigation

The bottom navigation Menu in Flutter can contain multiple items such as text labels, icons, or both. It allows the user to navigate between the top-level views of an app quickly. If we are using a larger screen, it is better to use a side navigation bar.

In Flutter application, we usually set the bottom navigation bar in conjunction with the scaffold widget. Scaffold widget provides a Scaffold.bottomNavigationMenu argument to set the bottom navigation bar. It is to note that only adding BottomNavigationBar will not display the navigation items. It is required to set the BottomNavigationItems for Items property that accepts a list of BottomNavigationItems widgets.

BottomNavigationBar BottomNavigationBar class Null safety A material widget that's displayed at the bottom of an app for selecting among a small number of views, typically between three and five.

The bottom navigation bar consists of multiple items in the form of text labels, icons, or both, laid out on top of a piece of material. It provides quick navigation between the top-level views of an app. For larger screens, side navigation may be a better fit.

A bottom navigation bar is usually used in conjunction with a Scaffold, where it is provided as the Scaffold.bottomNavigationBar argument.

The bottom navigation bar's type changes how its items are displayed. If not specified, then it's automatically set to BottomNavigationBarType.fixed when there are less than four items, and BottomNavigationBarType.shifting otherwise.

The length of items must be at least two and each item's icon and title/label must not be null.

BottomNavigationBarType.fixed, the default when there are less than four items. The selected item is rendered with the selectedItemColor if it's non-null, otherwise the theme's ColorScheme.primary color is used for Brightness.light themes and ColorScheme.secondary for Brightness.dark themes. If backgroundColor is null, The navigation bar's background color defaults to the Material background color, ThemeData.canvasColor (essentially opaque white). BottomNavigationBarType.shifting, the default when there are four or more items. If selectedItemColor is null, all items are rendered in white. The navigation bar's background color is the same as the BottomNavigationBarItem.backgroundColor of the selected item. In this case it's assumed that each item will have a different background color and that background color will contrast well with white.

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