ContextualAppBar<T> class

Inheritance

Constructors

ContextualAppBar({Key? key, required CounterBuilder counterBuilder, required List<ContextualAction<T>> contextualActions, bool automaticallyImplyLeading = true, IconData? closeIcon = Icons.close, double? leadingWidth, Widget? flexibleSpace, PreferredSizeWidget? bottom, double? elevation, double? scrolledUnderElevation, ScrollNotificationPredicate notificationPredicate = defaultScrollNotificationPredicate, Color? shadowColor, Color? surfaceTintColor, ShapeBorder? shape, Color? backgroundColor, Color? foregroundColor, IconThemeData? iconTheme, IconThemeData? actionsIconTheme, bool primary = true, bool? centerTitle, bool excludeHeaderSemantics = false, double? titleSpacing, double toolbarOpacity = 1.0, double bottomOpacity = 1.0, double? toolbarHeight, TextStyle? toolbarTextStyle, TextStyle? titleTextStyle, SystemUiOverlayStyle? systemOverlayStyle, bool forceMaterialTransparency = false, Clip? clipBehavior})
const

Properties

actionsIconTheme → IconThemeData?
The color, opacity, and size to use for the icons that appear in the app bar's actions.
final
automaticallyImplyLeading → bool
Controls whether we should try to imply the leading widget if null.
final
backgroundColor → Color?
The fill color to use for an app bar's Material.
final
bottom → PreferredSizeWidget?
This widget appears across the bottom of the app bar.
final
bottomOpacity → double
How opaque the bottom part of the app bar is.
final
centerTitle → bool?
Whether the title should be centered.
final
clipBehavior → Clip?
The content will be clipped (or not) according to this option.
final
closeIcon → IconData?
Icon to use to close Action mode
final
contextualActions → List<ContextualAction<T>>
Widgets to display after the counterBuilder widget.
final
counterBuilder → CounterBuilder
The primary widget displayed in the app bar. The itemsCount property gives you the count of the selected items. Typically a Text widget containing a description of the current contents of the app.
final
elevation → double?
The z-coordinate at which to place this app bar relative to its parent.
final
excludeHeaderSemantics → bool
Whether the title should be wrapped with header Semantics.
final
flexibleSpace → Widget?
This widget is stacked behind the toolbar and the tab bar. Its height will be the same as the app bar's overall height.
final
forceMaterialTransparency → bool
Forces the AppBar's Material widget type to be MaterialType.transparency (instead of Material's default type).
final
foregroundColor → Color?
The default color for Text and Icons within the app bar.
final
hashCode → int
The hash code for this object.
no setterinherited
iconTheme → IconThemeData?
The color, opacity, and size to use for toolbar icons.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
leadingWidth → double?
Defines the width of AppBar.leading widget.
final
notificationPredicate → ScrollNotificationPredicate
A check that specifies which child's ScrollNotifications should be listened to.
final
primary → bool
Whether this app bar is being displayed at the top of the screen.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrolledUnderElevation → double?
The elevation that will be used if this app bar has something scrolled underneath it.
final
shadowColor → Color?
The color of the shadow below the app bar.
final
shape → ShapeBorder?
The shape of the app bar's Material as well as its shadow.
final
surfaceTintColor → Color?
The color of the surface tint overlay applied to the app bar's background color to indicate elevation.
final
systemOverlayStyle → SystemUiOverlayStyle?
Specifies the style to use for the system overlays (e.g. the status bar on Android or iOS, the system navigation bar on Android).
final
titleSpacing → double?
The spacing around title content on the horizontal axis. This spacing is applied even if there is no leading content or actions. If you want title to take all the space available, set this value to 0.0.
final
titleTextStyle → TextStyle?
The default text style for the AppBar's title widget.
final
toolbarHeight → double?
Defines the height of the toolbar component of an AppBar.
final
toolbarOpacity → double
How opaque the toolbar part of the app bar is.
final
toolbarTextStyle → TextStyle?
The default text style for the AppBar's leading, and actions widgets, but not its title.
final

Methods

build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
override
createElement() → StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent 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
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited