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, read-only, inherited
key Key?
Controls how one widget replaces another widget in the tree.
final, inherited
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-only, inherited

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, inherited
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, inherited