FreeScroll class

A widget that enables freeform scrolling and zooming of widgets within a constrained area.

The FreeScroll widget allows users to zoom in/out and scroll the content freely. The widget supports pinch-to-zoom gestures as well as pointer scroll events for zooming. It also provides customizable padding, spacing, and other layout configurations.

Inheritance

Constructors

FreeScroll({Key? key, Color? backgroundColor, double? minScale = 1.0, double? maxScale = 3.0, double? width, double? height, EdgeInsets? padding = const EdgeInsets.all(20.0), double? spacing = 15.0, double? runSpacing = 15.0, required List<Widget> children})
Creates a new FreeScroll widget.
const

Properties

backgroundColor Color?
The background color of the scrollable area.
final
children List<Widget>
Children widgets to display in the scrollable area.
final
hashCode int
The hash code for this object.
no setterinherited
height double?
The height of the scrollable area. If null, it will take the maximum height.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
maxScale double?
The maximum scale factor for zooming.
final
minScale double?
The minimum scale factor for zooming.
final
padding EdgeInsets?
The padding around the scrollable area.
final
runSpacing double?
The spacing between items vertically.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
spacing double?
The spacing between items horizontally.
final
width double?
The width of the scrollable area. If null, it will take the maximum width.
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() FreeScrollState
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