StateXonErrorMixin<T extends StatefulWidget> mixin

Supply an 'error handler' routine if something goes wrong. It need not be implemented, but it's their for your consideration.

Superclass constraints
  • StateX<T>
Mixin applications

Properties

context → BuildContext
The location in the tree where this widget builds.
no setterinherited
controller → StateXController?
Provide the 'main' controller to this 'State View.' If _controller == null, get the 'first assigned' controller if any.
no setterinherited
dataObject ↔ Object?
This is of type Object allowing you to propagate any class object you wish down the widget tree.
getter/setter pairinherited
deactivated ↔ bool
State object's deactivated() was called.
getter/setter pairinherited
detached ↔ bool
State object was in 'paused' state
getter/setter pairinherited
disposed ↔ bool
Flag indicating this State object is disposed. Will be garbage collected. property, mounted, is then set to false.
getter/setter pairinherited
endState → State<StatefulWidget>?
Return the 'latest' State object
no setterinherited
errorMsg → String
Simply display the exception.
no setterinherited
hadSystemEvent → bool
State object experienced a system event
no setterinherited
hasError → bool
Indicate if an exception had occurred.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
identifier → String
The unique identifier for this State object.
no setterinherited
inactive ↔ bool
State object was in 'inactive' state
getter/setter pairinherited
inDebugMode → bool
Determines if running in an IDE or in production. Returns true if the App is under in the Debugger and not production.
no setterinherited
isEndState → bool
This is the 'latest' State being viewed by the App.
no setterinherited
lastContext → BuildContext?
Returns the 'latest' context in the App.
no setterinherited
mounted → bool
Whether this State object is currently in a tree.
no setterinherited
paused ↔ bool
State object was in 'paused' state
getter/setter pairinherited
resumed ↔ bool
State object was in 'resumed' state
getter/setter pairinherited
rootCon → StateXController?
Returns 'the first' StateXController associated with this StateX object. Returns null if empty.
no setterinherited
rootState → AppStateX<StatefulWidget>?
Returns the 'first' StateX object in the App
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
stackTrace → StackTrace?
The StackTrace
no setterinherited
startState → State<StatefulWidget>?
Return the first State object
no setterinherited
widget → T
You need to be able access the widget.
no setterinherited

Methods

activate() → void
Called when this object is reinserted into the tree after having been removed via deactivate.
inherited
add(StateXController? controller) → String
Add a specific StateXController to this View. Returns the StateXController's unique String identifier.
inherited
addList(List<StateXController>? list) → List<String>
Add a list of 'Controllers' to be associated with this StatX object.
inherited
build(BuildContext context) → Widget
Implement the build() function if you wish Implemented in mixin FutureBuilderStateMixin Explicitly implemented here to highlight the override.
inherited
buildF(BuildContext context) → Widget
Implement this function instead of the build() function so to utilize a built-in FutureBuilder Widget and InheritedWidget. Not, it's already implemented in mixin FutureBuilderStateMixin
inherited
contains(StateXController con) → bool
Returns true if found.
inherited
controllerById(String? id) → StateXController?
Retrieve a StateXController by its a unique String identifier.
inherited
controllerByType<U extends StateXController>() → U?
Retrieve a StateXController by type.
inherited
copy([StateX<StatefulWidget>? state]) → void
Copy particular properties from another StateX
inherited
deactivate() → void
The framework calls this method whenever it removes this State object from the tree.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
dependOnInheritedWidget(BuildContext? context) → bool
Link a widget to the InheritedWidget
inherited
detachedLifecycleState() → void
Either be in the progress of attaching when the engine is first initializing or after the view being destroyed due to a Navigator pop.
inherited
didChangeAccessibilityFeatures() → void
Called when the system changes the set of currently active accessibility features.
inherited
didChangeAppLifecycleState(AppLifecycleState state) → void
Called when the system puts the app in the background or returns the app to the foreground.
inherited
didChangeDependencies() → void
This method is also called immediately after initState. Otherwise called only if this State object's Widget is a dependency of InheritedWidget. When a InheritedWidget's build() function is called the dependent widget's build() function is also called but not before their didChangeDependencies() function. Subclasses rarely use this method.
inherited
didChangeLocales(List<Locale>? locales) → void
Called when the system tells the app that the user's locale has changed. For example, if the user changes the system language settings.
inherited
didChangeMetrics() → void
Called when the application's dimensions change. For example, when a phone is rotated.
inherited
didChangePlatformBrightness() → void
Called when the platform brightness changes.
inherited
didChangeTextScaleFactor() → void
Called when the platform's text scale factor changes.
inherited
didChangeViewFocus(ViewFocusEvent event) → void
Called whenever the PlatformDispatcher receives a notification that the focus state on a view has changed.
inherited
didHaveMemoryPressure() → void
Called when the system is running low on memory.
inherited
didPop() → void
Called when this route has been popped off.
inherited
didPopNext() → void
The top route has been popped off, and this route shows up.
inherited
didPopRoute() → Future<bool>
Called when the system tells the app to pop the current route. For example, on Android, this is called when the user presses the back button. Observers are notified in registration order until one returns true. If none return true, the application quits.
inherited
didPush() → void
Called when this route has been pushed.
inherited
didPushNext() → void
New route has been pushed, and this route is no longer visible.
inherited
didPushRoute(String route) → Future<bool>
Called when the host tells the app to push a new route onto the navigator.
inherited
didPushRouteInformation(RouteInformation routeInformation) → Future<bool>
Called when the host tells the application to push a new RouteInformation and a restoration state onto the router.
inherited
didRequestAppExit() → Future<AppExitResponse>
Called when a request is received from the system to exit the application.
inherited
didUpdateWidget(covariant StatefulWidget oldWidget) → void
Override this method to respond when its StatefulWidget is re-created. The framework always calls build after calling didUpdateWidget, which means any calls to setState in didUpdateWidget are redundant.
inherited
dispose() → void
The framework calls this method when this StateX object will never build again and will be disposed of with garbage collection.
inherited
forEach(void func(StateXController con), {bool? reversed}) → bool
To externally 'process' through the controllers. Invokes func on each StateXController possessed by this StateX object. With an option to process in reversed chronological order
inherited
forEachState(void func(StateX<StatefulWidget> state), {bool? reversed}) → bool
To externally 'process' through the State objects. Invokes func on each StateX possessed by this StateX object. With an option to process in reversed chronological order
inherited
handleCancelBackGesture() → void
Called when a predictive back gesture is canceled, indicating that no navigation should occur.
inherited
handleCommitBackGesture() → void
Called when a predictive back gesture is finished successfully, indicating that the current route should be popped.
inherited
handleStartBackGesture(PredictiveBackEvent backEvent) → bool
Called at the start of a predictive back gesture.
inherited
handleUpdateBackGestureProgress(PredictiveBackEvent backEvent) → void
Called when a predictive back gesture moves.
inherited
inactiveLifecycleState() → void
Apps in this state should assume that they may be pausedLifecycleState at any time.
inherited
initAsync() → Future<bool>
Asynchronous operations must complete successfully.
inherited
initState() → void
The framework will call this method exactly once. Only when the StateX object is first created.
inherited
listControllers(List<String?>? ids) → List<StateXController?>
Returns the list of 'Controllers' but you must know their keys.
inherited
listStates(List<String> keys) → List<StateX<StatefulWidget>>
Returns a List of StateX objects using unique String identifiers.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notifyClients() → void
In harmony with Flutter's own API Rebuild the InheritedWidget of the 'closes' InheritedStateX object if any.
inherited
onAsyncError(FlutterErrorDetails details) → void
Supply an 'error handler' routine if something goes wrong in the corresponding runAsync() routine.
inherited
onError(FlutterErrorDetails details) → void
This is called within the framework.
pausedLifecycleState() → void
The application is not currently visible to the user, not responding to user input, and running in the background.
inherited
reassemble() → void
During development, if a hot reload occurs, the reassemble method is called. This provides an opportunity to reinitialize any data that was prepared in the initState method.
inherited
recordException([Object? error, StackTrace? stack]) → Exception?
Return the 'last' error if any.
inherited
remove(StateXController? controller) → bool
Remove a specific StateXController to this View. Returns the StateXController's unique String identifier.
inherited
removeByKey(String? id) → bool
Remove a specific 'StateXController' by its unique 'key' identifier.
inherited
resumedLifecycleState() → void
The application is visible and responding to user input.
inherited
runAsync() → Future<bool>
Run the StateX object's initAsync() function
inherited
setRootStateX(StateX<StatefulWidget> state) → void
Important to record the 'root' StateX object. Its InheritedWidget!
inherited
setState(VoidCallback fn) → void
Allows 'external' routines can call this function.
inherited
stateById(String? id) → StateX<StatefulWidget>?
Returns a StateView object using a unique String identifier.
inherited
stateByType<T extends StateX<StatefulWidget>>() → T?
Retrieve the State object by type Returns null if not found
inherited
statesById(List<String> ids) → Map<String, StateX<StatefulWidget>>
Returns a Map of StateView objects using unique String identifiers.
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
updateNewStateX(covariant StateX<StatefulWidget> oldState) → void
Update the 'new' StateX object from the 'old' StateX object. Returning to this app from another app will re-create the State object You 'update' the current State object using this function.
inherited

Operators

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