EmpireWidget<T extends EmpireViewModel> class Null safety

Base class for any widget that needs to be updated when the state of your widget changes.

Requires a class that extends EmpireViewModel to be passed to the viewModel argument. The EmpireViewModel is responsible for notifying this widget when the UI needs to be updated.

Usage

class MyWidget extends EmpireWidget<MyViewModel> {

   const MyWidget({super.key, required super.viewModel});

   @override
   EmpireState<EmpireWidget<EmpireViewModel>, MyViewModel> createEmpire() => _MyWidgetState(viewModel);

}
Inheritance

Constructors

EmpireWidget({Key? key, required T viewModel, bool debugPrintStateChanges = false})
const

Properties

debugPrintStateChanges bool
final
hashCode int
The hash code for this object.
@nonVirtual, read-only, inherited
key Key?
Controls how one widget replaces another widget in the tree.
final, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
viewModel → T
final

Methods

createElement() StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createEmpire() EmpireState<EmpireWidget<EmpireViewModel>, T>
Create an instance of EmpireState for this widget.
createState() State<StatefulWidget>
Avoid overriding this function. createEmpire handles the creation of the widget state. Overriding this function can have unintended side affects. You've been warned.
@mustCallSuper, override
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
@protected, inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a non-existent 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.
@nonVirtual, inherited