DrawerController class

Provides interactive behavior for Drawer widgets.

Rarely used directly. Drawer controllers are typically created automatically by Scaffold widgets.

The drawer controller provides the ability to open and close a drawer, either via an animation or via user interaction. When closed, the drawer collapses to a translucent gesture detector that can be used to listen for edge swipes.

See also:

Inheritance

Constructors

DrawerController({GlobalKey<State<StatefulWidget>>? key, required Widget child, required DrawerAlignment alignment, bool isDrawerOpen = false, DrawerCallback? drawerCallback, DragStartBehavior dragStartBehavior = DragStartBehavior.start, Color? scrimColor, double? edgeDragWidth, bool enableOpenDragGesture = true})
Creates a controller for a Drawer.
const

Properties

alignment → DrawerAlignment
The alignment of the Drawer.
final
child → Widget
The widget below this widget in the tree.
final
dragStartBehavior → DragStartBehavior
Determines the way that drag start behavior is handled.
final
drawerCallback → DrawerCallback?
Optional callback that is called when a Drawer is opened or closed.
final
edgeDragWidth → double?
The width of the area within which a horizontal swipe will open the drawer.
final
enableOpenDragGesture → bool
Determines if the Drawer can be opened with a drag gesture.
final
hashCode → int
The hash code for this object.
no setterinherited
isDrawerOpen → bool
Whether or not the drawer is opened or closed.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrimColor → Color?
The color to use for the scrim that obscures the underlying content while a drawer is open.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → DrawerControllerState
Creates the mutable state for this widget at a given location in the tree.
override
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, int wrapWidth = 65}) → 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

Static Methods

maybeOf(BuildContext context) → DrawerController?
The closest instance of DrawerController that encloses the given context, or null if none is found.
of(BuildContext context) → DrawerController
The closest instance of DrawerController that encloses the given context.