BottomNavigationBarThemeData class
Defines default property values for descendant BottomNavigationBar widgets.
Descendant widgets obtain the current BottomNavigationBarThemeData object
using BottomNavigationBarTheme.of(context)
. Instances of
BottomNavigationBarThemeData can be customized with
BottomNavigationBarThemeData.copyWith.
Typically a BottomNavigationBarThemeData is specified as part of the overall Theme with ThemeData.bottomNavigationBarTheme.
All BottomNavigationBarThemeData properties are null
by default. When
null, the BottomNavigationBar's build method provides defaults.
See also:
- ThemeData, which describes the overall theme information for the application.
- Mixed in types
- Annotations
- @immutable
Constructors
-
Creates a theme that can be used for ThemeData.bottomNavigationBarTheme.
const
Properties
- backgroundColor → Color
-
The color of the BottomNavigationBar itself. [...]
final
- elevation → double
-
The z-coordinate of the BottomNavigationBar. [...]
final
- hashCode → int
-
The hash code for this object. [...]
read-only, override
- runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
- selectedIconTheme → IconThemeData
-
The size, opacity, and color of the icon in the currently selected
BottomNavigationBarItem.icon. [...]
final
- selectedItemColor → Color
-
The color of the selected BottomNavigationBarItem.icon and
BottomNavigationBarItem.title. [...]
final
- selectedLabelStyle → TextStyle
-
The TextStyle of the BottomNavigationBarItem labels when they are
selected. [...]
final
- showSelectedLabels → bool
-
Whether the labels are shown for the unselected BottomNavigationBarItems. [...]
final
- showUnselectedLabels → bool
-
Whether the labels are shown for the selected BottomNavigationBarItem. [...]
final
- type → BottomNavigationBarType
-
Defines the layout and behavior of a BottomNavigationBar. [...]
final
- unselectedIconTheme → IconThemeData
-
The size, opacity, and color of the icon in the currently unselected
BottomNavigationBarItem.icons. [...]
final
- unselectedItemColor → Color
-
The color of the unselected BottomNavigationBarItem.icon and
BottomNavigationBarItem.titles. [...]
final
- unselectedLabelStyle → TextStyle
-
The TextStyle of the BottomNavigationBarItem labels when they are not
selected. [...]
final
Methods
-
copyWith(
{Color backgroundColor, double elevation, IconThemeData selectedIconTheme, IconThemeData unselectedIconTheme, Color selectedItemColor, Color unselectedItemColor, TextStyle selectedLabelStyle, TextStyle unselectedLabelStyle, bool showSelectedLabels, bool showUnselectedLabels, BottomNavigationBarType type} ) → BottomNavigationBarThemeData - Creates a copy of this object but with the given fields replaced with the new values.
-
debugFillProperties(
DiagnosticPropertiesBuilder properties ) → void -
Add additional properties associated with the node. [...]
override
-
noSuchMethod(
Invocation invocation ) → dynamic -
Invoked when a non-existent method or property is accessed. [...]
inherited
-
toDiagnosticsNode(
{String name, DiagnosticsTreeStyle style} ) → DiagnosticsNode -
Returns a debug representation of the object that is used by debugging
tools and by DiagnosticsNode.toStringDeep. [...]
inherited
-
toString(
{DiagnosticLevel minLevel: DiagnosticLevel.info} ) → String -
Returns a string representation of this object.
inherited
-
toStringShort(
) → String -
A brief description of this object, usually just the runtimeType and the
hashCode. [...]
inherited
Operators
-
operator ==(
Object other ) → bool -
The equality operator. [...]
override
Static Methods
-
lerp(
BottomNavigationBarThemeData a, BottomNavigationBarThemeData b, double t ) → BottomNavigationBarThemeData - Linearly interpolate between two BottomNavigationBarThemeData. [...]