PersistedAppState class
Add to your widget hierarchy to add app-wide state persistence.
- Inheritance
-
- Object
- DiagnosticableTree
- Widget
- StatefulWidget
- PersistedAppState
Constructors
- PersistedAppState({Key? key, PersistedStateStorage storage = const JsonFileStorage(), Duration saveTimeout = const Duration(milliseconds: 500), required Widget child})
-
const
Properties
- child → Widget
-
Child Widget
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
- saveTimeout → Duration
-
When this timeout period expires the changed state is saved.
This stops calling save on many minor changes.
final
- storage → PersistedStateStorage
-
Storage mechanism used to load/save app state.
final
Methods
-
createElement(
) → StatefulElement -
Creates a StatefulElement to manage this widget's location in the tree.
inherited
-
createState(
) → _PersistedAppState -
Creates the mutable state for this widget at a given location in the tree.
override
-
debugDescribeChildren(
) → List< DiagnosticsNode> -
Returns a list of
DiagnosticsNodeobjects 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
Static Methods
-
of(
BuildContext context) → PersistedData? - Used to fetch persisted data anywhere across the app. Results in null if data is not yet loaded.
-
snapshot(
BuildContext context) → AsyncSnapshot< PersistedData> ? - Used to fetch the AsyncSnapshot of the persisted data. This allows you to monitor the progress of the loading data.