A material widget displayed at the bottom of an app for selecting among a small number of views.
The bottom navigation bar consists of multiple items in the form of 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 Scaffold where it is provided as the bottomNavigationBar argument.
See also:
- Inheritance
- Object
- Widget
- StatefulWidget
- BottomNavigationBar
Constructors
-
Creates a bottom navigation bar, typically used in a Scaffold where it is provided as the bottomNavigationBar argument.
Properties
- currentIndex → int
-
The index into items of the current active item.
read-only - fixedColor → Color
-
The color of the selected item when bottom navigation bar is BottomNavigationBarType.fixed.
read-only - iconSize → double
-
The size of all of the BottomNavigationBarItem icons.
read-only - items → List<BottomNavigationBarItem>
-
The interactive items laid out within the bottom navigation bar.
read-only - onTap → ValueChanged<int>
-
The callback that is called when a item is tapped.
read-only - type → BottomNavigationBarType
-
Defines the layout and behavior of a BottomNavigationBar.
read-only - hashCode → int
-
Get a hash code for this object.
read-only, inherited - key → Key
-
Controls how one widget replaces another widget in the tree.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
createState(
) → BottomNavigationBarState -
Creates the mutable state for this widget at a given location in the tree.
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited -
debugFillDescription(
List<String> description) → void -
Add additional information to the given description for use by toString.
inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited -
toStringShort(
) → String -
A short, textual description of this widget.
inherited