GenericReactionListCore<A, Ob, T, Or> class

The generic version of ReactionListCore

ReactionListCore is a core class that allows fetching a list of reactions while exposing UI builders.

Usage

class ReactionListView extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: ReactionListCore(
        errorBuilder: (context, error) => Center(
            child: Text('An error has occurred'),
        ),
        emptyBuilder: (context) => Center(
            child: Text('Nothing here...'),
        ),
        loadingBuilder: (context) => Center(
            child: CircularProgressIndicator(),
        ),
        feedBuilder: (context, reactions) {
          return Text('Your ListView/GridView of reactions');
        }
      ),
    );
  }
}

Make sure to have a FeedProvider ancestor in order to provide the information about the reactions.

Usually what you want is the convenient ReactionListCore that already has the default parameters defined for you suitable to most use cases. But if you need a more advanced use case use GenericReactionListCore instead The generic parameters can be of the following type:

  • A : actor can be an User, or a String
  • Ob : object can a String, or a CollectionEntry
  • T : target can be a String or an Activity
  • Or : origin can be a String or a Reaction or an User

To avoid potential runtime errors make sure they are the same across the app if you go the route of using Generic* classes

Inheritance
Implementers

Constructors

GenericReactionListCore({Key? key, required ReactionsBuilder reactionsBuilder, required String lookupValue, required WidgetBuilder loadingBuilder, required WidgetBuilder emptyBuilder, required ErrorBuilder errorBuilder, LookupAttribute lookupAttr = LookupAttribute.activityId, Filter? filter, EnrichmentFlags? flags, String? kind, int? limit, ScrollPhysics? scrollPhysics})
ReactionListCore is a core class that allows fetching a list of reactions while exposing UI builders.
const

Properties

emptyBuilder → WidgetBuilder
Function used to build an empty widget
final
errorBuilder → ErrorBuilder
Callback triggered when an error occurs while performing the given request.
final
filter → Filter?
Note: passing both id_lteandid_gte is not supported.
final
flags → EnrichmentFlags?
Flags to indicate the API to enrich activities with additional info like user reactions and count
final
hashCode → int
The hash code for this object.
no setterinherited
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
kind → String?
The kind of reaction, usually i.e 'comment', 'like', 'reaction' etc
final
limit → int?
The limit of activities to fetch
final
loadingBuilder → WidgetBuilder
Function used to build a loading widget
final
lookupAttr → LookupAttribute
final
lookupValue → String
final
reactionsBuilder → ReactionsBuilder
A builder that allows building a ListView of Reaction based Widgets
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scrollPhysics → ScrollPhysics?
final

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _GenericReactionListCoreState<A, Ob, T, Or>
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.
override
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