AsyncValueBuilder<T> class
Widget that builds content based on an async value.
If there is data, the builder will be called. However, it may also be possible that the data is cached, and there could be an error or loading in progress. All data, error, as isLoading values will be passed to the builder accordingly, to allow for custom content states.
If there is no data,but there is an error, an error message will be shown. Otherwise, a circular progress indicator will be shown as fallback.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatelessWidget
- AsyncValueBuilder
Constructors
-
AsyncValueBuilder({Key? key, required AsyncValue<
T> value, required VoidCallback? onRetryButtonPress, AlignmentGeometry? alignment, required AsyncValueWidgetBuilder<T> builder}) -
const
Properties
- alignment → AlignmentGeometry?
-
final
-
builder
→ AsyncValueWidgetBuilder<
T> -
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- key → Key?
-
Controls how one widget replaces another widget in the tree.
finalinherited
- onRetryButtonPress → VoidCallback?
-
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
-
value
→ AsyncValue<
T> -
final
Methods
-
build(
BuildContext context) → Widget -
Describes the part of the user interface represented by this widget.
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.
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