SettingsWidgetBaseState<T, W extends SettingsWidgetBase<T>> class abstract

The base state class for SettingsWidgetBase

This takes care of persisting the value via shared_preferences You can subclass this to support more complex data types than supported by shared_preferences. When subclassing for complex types, implement serialize and deserialize. Please see the included example.

Inheritance

Constructors

SettingsWidgetBaseState()

Properties

context → BuildContext
The location in the tree where this widget builds.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
mounted → bool
Whether this State object is currently in a tree.
no setterinherited
prefs ↔ SharedPreferences
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
value ↔ T?
getter/setter pair
widget → W
The current configuration.
no setterinherited

Methods

activate() → void
Called when this object is reinserted into the tree after having been removed via deactivate.
inherited
build(BuildContext context) → Widget
Describes the part of the user interface represented by this widget.
inherited
deactivate() → void
Called when this object is removed from the tree.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
deserialize(String? data) → T?
override this for more complex data types than the ones supported by shared_preferences.
didChangeDependencies() → void
Called when a dependency of this State object changes.
inherited
didUpdateWidget(covariant W oldWidget) → void
Called whenever the widget configuration changes.
inherited
dispose() → void
Called when this object is removed from the tree permanently.
inherited
init() → void
initState() → void
Called when this object is inserted into the tree.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
onChanged(T? newValue) → void
This method is called by subclasses when the value changes. Here, the new value is only set and SettingsWidgetBase.onChanged is only called when the value actually changes
persist() → void
Here the actual storing takes place
reassemble() → void
Called whenever the application is reassembled during debugging, for example during hot reload.
inherited
serialize() → String?
override this for more complex data types than the ones supported by shared_preferences.
setState(VoidCallback fn) → void
Notify the framework that the internal state of this object has changed.
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
toStringShort() → String
A brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited