Query<T extends dynamic> class

Executes async action and listens for further invalidations.

Takes future object which represents async action. Usually, this means API call.
Takes cacheKey identifier which will be used for storing the future response
Takes builder which follows the standard Flutter builder pattern. First parameter is BuildContext followed by QueryResponse object

Inheritance

Constructors

Query(dynamic cacheKey, {required Widget builder(BuildContext context, QueryResponse<T> response), required Future<T> future()})
Creates Query instance.

Properties

builder → Widget Function(BuildContext context, QueryResponse<T> response)
Updates the widget subtree by providing a latest QueryResponse object to the children.
final
cacheKey → dynamic
Identifier used for storing the data in cache.
final
future → Future<T> Function()
Async function which result will be stored in cache
final
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

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _QueryState<T>
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}) → 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