FutureProvider<T> class

Listens to a Future and exposes its result to child and its descendants.

It is considered an error to pass a future that can emit errors without providing a catchError method.

updateShouldNotify can optionally be passed to avoid unnecessarily rebuilding dependents when Provider is rebuilt but value did not change.

Defaults to (previous, next) => previous != next. See InheritedWidget.updateShouldNotify for more information.

See also:

Inheritance

Constructors

FutureProvider({Key? key, required Create<Future<T>?> create, required T initialData, ErrorBuilder<T>? catchError, UpdateShouldNotify<T>? updateShouldNotify, bool? lazy, TransitionBuilder? builder, Widget? child})
Creates a Future from create and subscribes to it.
FutureProvider.value({Key? key, required Future<T>? value, required T initialData, ErrorBuilder<T>? catchError, UpdateShouldNotify<T>? updateShouldNotify, TransitionBuilder? builder, Widget? child})
Listens to value and expose it to all of FutureProvider descendants.

Properties

builder TransitionBuilder?
Syntax sugar for obtaining a BuildContext that can read the provider created.
finalinherited
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
finalinherited
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.
inherited
buildWithChild(BuildContext context, Widget? child) Widget
A build method that receives an extra child parameter.
inherited
createElement() → _InheritedProviderElement<T>
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}) 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