FeatureGate class final

FeatureGate — контроллер доступа по feature-флагу.

Отображает child, если заданный флаг активен, иначе — fallback.

Используется для:

  • постепенного выката фич
  • A/B тестов
  • временного скрытия UI-компонентов

Работает в паре с FeatureFlagsController, который должен быть обернут через FeatureFlags на уровне MaterialApp.

Пример:

FeatureGate(
  flag: 'new_ui',
  child: NewUIWidget(),
)
Inheritance

Constructors

FeatureGate({required String flag, required Widget child, Widget? fallback, Widget? loading, Key? key})
FeatureGate — контроллер доступа по feature-флагу.
const

Properties

child → Widget
Виджет при активном флаге
final
fallback → Widget?
Виджет при неактивном флаге
final
flag → String
Имя feature-флага
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
loading → Widget?
Виджет при загрузке
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

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.
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