ScrollToBottom class

A floating action button typically displayed near the composer that scrolls the chat list to the bottom when pressed.

Animates its appearance/disappearance based on the provided animation.

Inheritance

Constructors

ScrollToBottom.new({Key? key, required Animation<double> animation, required VoidCallback onPressed, double? left, double? right = 16, double? top, double? bottom = 12, bool? useComposerHeightForBottomOffset = true, bool? mini = true, ShapeBorder? shape = const CircleBorder(), Widget? icon = const Icon(Icons.keyboard_arrow_down), bool? handleSafeArea = true, Color? backgroundColor, Color? foregroundColor, String? scrollToBottomArrow})
Creates a scroll-to-bottom button.
const

Properties

animation Animation<double>
Animation controlling the visibility and scale of the button.
final
backgroundColor Color?
Background color of the button.
final
bottom double?
Optional bottom position.
final
foregroundColor Color?
Foreground color (icon color) of the button.
final
handleSafeArea bool?
Whether to adjust the bottom position for the bottom safe area.
final
hashCode int
The hash code for this object.
no setterinherited
icon Widget?
The icon displayed inside the button.
final
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
left double?
Optional left position.
final
mini bool?
Whether to use the smaller mini FAB size.
final
onPressed VoidCallback
Callback triggered when the button is pressed.
final
Optional right position.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
scrollToBottomArrow String?
final
shape ShapeBorder?
The shape of the button.
final
top double?
Optional top position.
final
useComposerHeightForBottomOffset bool?
Whether to offset the button's bottom position by the composer's height.
final

Methods

build(BuildContext context) Widget
Describes the part of the user interface represented by this widget.
override
createElement() StatelessElement
Creates a StatelessElement to manage this widget's location in the tree.
inherited
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