CupertinoScrollbar class

An iOS style scrollbar.

A scrollbar indicates which portion of a Scrollable widget is actually visible.

To add a scrollbar to a ScrollView, simply wrap the scroll view widget in a CupertinoScrollbar widget.

By default, the CupertinoScrollbar will be draggable (a feature introduced in iOS 13), it uses the PrimaryScrollController. For multiple scrollbars, or other more complicated situations, see the controller parameter.

See also:

  • ListView, which display a linear, scrollable list of children.
  • GridView, which display a 2 dimensional, scrollable array of children.
  • Scrollbar, a Material Design scrollbar that dynamically adapts to the platform showing either an Android style or iOS style scrollbar.
Inheritance

Constructors

CupertinoScrollbar({Key key, ScrollController controller, @required Widget child })
Creates an iOS style scrollbar that wraps the given child. [...]
const

Properties

child Widget
The subtree to place inside the CupertinoScrollbar. [...]
final
controller ScrollController
The ScrollController used to implement Scrollbar dragging. [...]
final
hashCode int
The hash code for this object. [...]
read-only, inherited
key Key
Controls how one widget replaces another widget in the tree. [...]
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createState() → _CupertinoScrollbarState
Creates the mutable state for this widget at a given location in the tree. [...]
override
createElement() StatefulElement
Creates a StatefulElement 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.debug }) String
Returns 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 ==(dynamic other) bool
The equality operator. [...]
inherited