MultiProvider class
A provider that merges multiple providers into a single linear widget tree. It is used to improve readability and reduce boilerplate code of having to nest multiple layers of providers.
As such, we're going from:
Provider<Foo>.value(
value: foo,
child: Provider<Bar>.value(
value: bar,
child: Provider<Baz>.value(
value: baz,
child: someWidget,
)
)
)
To:
MultiProvider(
providers: [
Provider<Foo>.value(value: foo),
Provider<Bar>.value(value: bar),
Provider<Baz>.value(value: baz),
],
child: someWidget,
)
The widget tree representation of the two approaches are identical.
- Inheritance
- Object
- Diagnosticable
- DiagnosticableTree
- Widget
- StatelessWidget
- MultiProvider
- Implemented types
Constructors
-
MultiProvider({Key key, @required List<
SingleChildCloneableWidget> providers, Widget child }) -
Build a tree of providers from a list of SingleChildCloneableWidget.
const
Properties
- child → Widget
-
The child of the last provider in providers. [...]
final
-
providers
→ List<
SingleChildCloneableWidget> -
The list of providers that will be transformed into a tree from top to
bottom. [...]
final
- hashCode → int
-
The hash code for this object.
read-only, 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.
read-only, inherited
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget. [...]
override
-
cloneWithChild(
Widget child) → MultiProvider -
Clones the current provider with a new
child
. [...]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. [...]
inherited
-
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.debug }) → String -
Returns 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 ==(
dynamic other) → bool -
The equality operator.
inherited