Gap class

A widget that adds some space between widgets inside Flex widgets such as Columns and Rows or scrolling views. This is alternative to SizedBox inside row/column such that you don't have to know the main direction of the parent widget.

Any usage of Gap where the parent is not a Flex widget will result into an error.

Examples:

1. Row | 2. Column Row( | Column( children: [ | children: const Icon(Icons.home), | const Text('Hello'), const Gap(10), | const Gap(10), const Text('Hello World'), | const Text('World'), , | ], ) | )

2. ListView (A scrollable) ListView( children: const Text('Hello'), const Gap(10), const Text('World'), , )

Inheritance

• Object
• DiagnosticableTree
• Widget
• RenderObjectWidget
• LeafRenderObjectWidget
• Gap

Available extensions

• WidgetFS

Constructors

Gap(double size, {Key? key})

Creates Gap instance with given Size.

const

Properties

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

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

size → double

Size of the gap.

final

Methods

createElement() → LeafRenderObjectElement

RenderObjectWidgets always inflate to a RenderObjectElement subclass.

inherited

createRenderObject(BuildContext context) → RenderObject

Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.

override

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.

override

didUnmountRenderObject(covariant RenderObject renderObject) → void

This method is called when a RenderObject that was previously associated with this widget is removed from the render tree. The provided RenderObject will be of the same type as the one created by this widget's createRenderObject method.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

showAsDialog(BuildContext context, {bool useRootNavigator = false, ModalConfiguration configuration = const FadeScaleTransitionConfiguration()}) → Future<T?>

Available on Widget, provided by the WidgetFS extension

Displays this widget as a dialog on screen

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

updateRenderObject(BuildContext context, covariant _RenderGap renderObject) → void

Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited