PagedListViewFetcher<T, P> class
A widget that fetch a paginated list of data, page by page.
Handle all states (loading, errors, onSuccess).
Initially just fetch first page, then fetch next page when user scrolls.
T is the type of the data.
P is the type of the pageId (usually String or int).
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- PagedListViewFetcher
Constructors
-
PagedListViewFetcher({Key? key, FetchBuilderController<
PagedData< ? controller, required ParameterizedAsyncTask<T, P> >P, PagedData< task, Widget? separator, required DataWidgetBuilder<T, P> >T> itemBuilder, Widget? emptyWidget, EdgeInsetsGeometry? padding, double? itemExtent, bool reverse = false, ScrollPhysics? physics}) -
const
Properties
-
controller
→ FetchBuilderController<
PagedData< ?T, P> > -
A controller used to manually refresh data.
final
- emptyWidget → Widget?
-
A widget to display when there is no data.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
-
itemBuilder
→ DataWidgetBuilder<
T> -
A builder that builds the widget for each item.
final
- itemExtent → double?
-
The extent the item will have.
Only work if separator is null.
final
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- padding → EdgeInsetsGeometry?
-
The padding around the list.
final
- physics → ScrollPhysics?
-
The scroll physics to use for the list.
Use AlwaysScrollableScrollPhysics to allow pull-to-refresh even when the list doesn't fill the screen.
final
- reverse → bool
-
If true, the list will be reversed.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- separator → Widget?
-
A widget to display between each item.
final
-
task
→ ParameterizedAsyncTask<
P, PagedData< T, P> > -
Task that fetch and return the data, with pageId as parameter.
Return the page directly (not a Future) when it's already available, to skip the loader: see FetchBuilder.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → State< PagedListViewFetcher< T, P> > -
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, 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