DrawerHeader class Null safety

The top-most region of a Material Design drawer. The header's child widget, if any, is placed inside a Container whose decoration can be passed as an argument, inset by the given padding.

Part of the Material Design Drawer.

Requires one of its ancestors to be a Material widget. This condition is satisfied by putting the DrawerHeader in a Drawer.

See also:

Inheritance

Constructors

DrawerHeader({Key? key, Decoration? decoration, EdgeInsetsGeometry? margin = const EdgeInsets.only(bottom: 8.0), EdgeInsetsGeometry padding = const EdgeInsets.fromLTRB(16.0, 16.0, 16.0, 8.0), Duration duration = const Duration(milliseconds: 250), Curve curve = Curves.fastOutSlowIn, required Widget? child})
Creates a Material Design drawer header.
const

Properties

child → Widget?
A widget to be placed inside the drawer header, inset by the padding.
final
curve → Curve
The curve for animations of the decoration.
final
decoration → Decoration?
Decoration for the main drawer header Container; useful for applying backgrounds.
final
duration → Duration
The duration for animations of the decoration.
final
hashCode → int
The hash code for this object.
nonVirtual">@nonVirtualread-onlyinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
margin → EdgeInsetsGeometry?
The margin around the drawer header.
final
padding → EdgeInsetsGeometry
The padding by which to inset child.
final
runtimeType → Type
A representation of the runtime type of the object.
read-onlyinherited

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.
protected">@protectedinherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
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
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.
nonVirtual">@nonVirtualinherited