Box class Null safety

Inheritance

Constructors

Box({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, AlignmentGeometry? alignment, Widget? child})
Box is something between a Container and a SizedBox. Unlike a Container it can be made const, so it's good for creating colored boxes, with or without padding: [...]
const
Box.b({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, Alignment? alignment, Widget? child})
Adding .b to the box will make it blue. Use this for debugging purposes only. This constructor is marked as deprecated so that you don't forget to remove it.
const
Box.g({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, Alignment? alignment, Widget? child})
Adding .g to the box will make it green. Use this for debugging purposes only. This constructor is marked as deprecated so that you don't forget to remove it.
const
Box.r({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, Alignment? alignment, Widget? child})
Adding .r to the box will make it red. Use this for debugging purposes only. This constructor is marked as deprecated so that you don't forget to remove it.
const
Box.rand({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, AlignmentGeometry? alignment, Widget? child})
Use the Box.rand constructor to see when the widget rebuilds. It will change its color to a random one, whenever its build method is called. This constructor is marked as deprecated so that you don't forget to remove it.
const
Box.y({Key? key, bool show = true, Color? color, EdgeInsetsGeometry? padding, double? width, double? height, Alignment? alignment, Widget? child})
Adding .y to the box will make it yellow. Use this for debugging purposes only. This constructor is marked as deprecated so that you don't forget to remove it.
const

Properties

alignment AlignmentGeometry?
final
child Widget?
final
color Color?
final
hashCode int
The hash code for this object. [...]
@nonVirtual, read-only, inherited
height double?
final
key Key?
Controls how one widget replaces another widget in the tree. [...]
final, inherited
padding EdgeInsetsGeometry?
final
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
show bool
final
width double?
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. [...]
@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