Nop<C> class

state manager

Inheritance

• Object
• DiagnosticableTree
• Widget
• StatefulWidget
• Nop

Constructors

Nop({Key? key, required Widget child, List<NopWidgetBuilder>? builders, C create(BuildContext context)?})

const

Nop.page({Key? key, required Widget child, List<NopWidgetBuilder>? builders, List<Type> groupList = const [], Object? group})

const

Nop.value({Key? key, C? value, required Widget child, List<NopWidgetBuilder>? builders})

const

Properties

builders → List<NopWidgetBuilder>?

final

child → Widget

final

create → C Function(BuildContext context)?

final

group → Object?

final

groupList → List<Type>

see: _getGroup

final

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

value → C?

final

Methods

createElement() → StatefulElement

Creates a StatefulElement to manage this widget's location in the tree.

inherited

createState() → State<Nop<C>>

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.

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

Static Methods

clear() → void

链表会自动管理生命周期

find<T>({Object? group}) → T?

findwithContext<T>(BuildContext context, {Object? group, bool useNopGroup = true}) → T?

maybeOf<T>(BuildContext context, {Object? group, bool useNopGroup = true, int? position = 0}) → T?

of<T>(BuildContext? context, {Object? group, bool useNopGroup = true, int? position = 0}) → T