Displays a scrollbar that tracks the scrollOffset of its child's Scrollable descendant. If the Scrollbar's child has more than one Scrollable descendant the scrollableKey parameter can be used to identify the one the Scrollbar should track.

Inheritance

Constructors

Scrollbar({Key key, Key scrollableKey, Widget child })

Creates a scrollbar.

Properties

child Widget

The scrollbar will be stacked on top of this child. The scrollbar will display when child's Scrollable descendant is scrolled.

read-only
scrollableKey Key

Identifies the Scrollable descendant of child that the scrollbar will track. Can be null if there's only one Scrollable descendant.

read-only
hashCode int

Get a hash code for this object.

read-only, inherited
key Key

Controls how one widget replaces another widget in the tree.

read-only, inherited
runtimeType Type

A representation of the runtime type of the object.

read-only, inherited

Operators

operator ==(other) bool

The equality operator.

inherited

Methods

createState() → _ScrollbarState

Creates the mutable state for this widget at a given location in the tree.

createElement() StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited
debugFillDescription(List<String> description) → void

Add additional information to the given description for use by toString.

inherited
noSuchMethod(Invocation invocation) → dynamic

Invoked when a non-existent method or property is accessed.

inherited
toString() String

Returns a string representation of this object.

inherited
toStringShort() String

A short, textual description of this widget.

inherited