AnimatedPaddingModifier class

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.

{@tool dartpad} The following code implements the AnimatedPadding widget, using a curve of Curves.easeInOut.

** See code in examples/api/lib/widgets/implicit_animations/animated_padding.0.dart ** {@end-tool}

See also:

• AnimatedContainer, which can transition more values at once.
• AnimatedAlign, which automatically transitions its child's position over a given duration whenever the given AnimatedAlign.alignment changes.

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatelessWidget
• SingleChildStatelessModifier
• SingleChildImplicitlyAnimatedModifier
• AnimatedPaddingModifier

Available extensions

• ModifierTransformer

Constructors

AnimatedPaddingModifier({Key? key, Widget? child, required Duration duration, Curve curve = Curves.linear, VoidCallback? onEnd, Key? modifierKey, required EdgeInsetsGeometry padding})

Creates a widget that insets its child by a value that animates implicitly.

const

Properties

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.

no setter, inherited

key → Key?

Controls how one widget replaces another widget in the tree.

final, inherited

modifierKey → Key?

The actual key of the widget, which Modifier wrapped

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.

no setter, inherited

Methods

build(BuildContext context) → Widget

Describes the part of the user interface represented by this widget.

inherited

buildWithChild(BuildContext context, Widget? child) → Widget

A build method that receives an extra child parameter.

override

createElement() → SingleChildStatelessElement

Create a SingleChildStatelessElement

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

modified() → Modifier

Available on Widget, provided by the ModifierTransformer extension

Transform normal widget to Modifier

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