DraggableDialog class

A highly customizable dialog widget with a draggable header.

This widget provides a structured layout with a header, content, and footer, each of which can be replaced with a custom widget.

Inheritance

Constructors

DraggableDialog({Key? key, required Widget body, required void onDragUpdate(DragUpdateDetails), Widget? header, Widget? footer, double? width, double? height, double? maxHeight, bool expandContent = true, DraggableDialogThemeData? theme, bool scrollable = true, bool resizable = false, IconData? resizeHandleIcon, double? resizeHandleIconSize})
const

Properties

body → Widget
The main content of the dialog. This is the only required part.
final
expandContent → bool
Whether the content area should expand to fill the available space within the maxHeight constraint. Defaults to true.
final
The widget to display in the footer, typically for action buttons. If null, the footer is not shown.
final
hashCode → int
The hash code for this object.
no setterinherited
The widget to display in the header. If null, the header is not shown. The header is the draggable area of the dialog.
final
height → double?
The preferred height of the dialog.
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxHeight → double?
The maximum height of the dialog.
final
onDragUpdate → void Function(DragUpdateDetails)
The callback for drag updates, which should be applied to the draggable part of the dialog (usually the header).
final
resizable → bool
Whether the dialog can be resized via a handle in the footer.
final
resizeHandleIcon → IconData?
Icon shown as the resize handle when resizable is enabled.
final
resizeHandleIconSize → double?
Size of the resize handle icon when resizable is enabled.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollable → bool
Whether the body should be wrapped in a SingleChildScrollView. Defaults to true.
final
theme → DraggableDialogThemeData?
The theme to apply to the dialog's components. If not provided, a default theme is created based on the current ThemeData.
final
width → double?
The width of the dialog.
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → State<DraggableDialog>
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