AnimatedPadding class Null safety

Animated version of Padding which automatically transitions the indentation over a given duration whenever the given inset changes.

Here's an illustration of what using this widget looks like, using a curve of Curves.fastOutSlowIn.

The following code implements the AnimatedPadding widget, using a curve of Curves.easeInOut.
To create a local project with this code sample, run:
flutter create --sample=widgets.AnimatedPadding.1 mysample

See also:

Inheritance

Constructors

AnimatedPadding({Key? key, required EdgeInsetsGeometry padding, Widget? child, Curve curve = Curves.linear, required Duration duration, VoidCallback? onEnd})
Creates a widget that insets its child by a value that animates implicitly.

Properties

child Widget?
The widget below this widget in the tree.
final
curve Curve
The curve to apply when animating the parameters of this container.
final, inherited
duration Duration
The duration over which to animate the parameters of this container.
final, inherited
hashCode int
The hash code for this object.
@nonVirtual, read-only, inherited
key Key?
Controls how one widget replaces another widget in the tree.
final, inherited
onEnd VoidCallback?
Called every time an animation completes.
final, inherited
padding EdgeInsetsGeometry
The amount of space by which to inset the child.
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() AnimatedWidgetBaseState<AnimatedPadding>
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.
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
override
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.info}) String
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 ==(Object other) bool
The equality operator.
@nonVirtual, inherited