ScreenData<S extends Screen> class abstract

Holds data shared across all ScreenLayouts of a Screen.

Subclass this to create custom data classes for your screen, then override Screen.createScreenData to return an instance.

class HomeData extends ScreenData<HomeScreen> {
  int counter = 0;

  void increment() => setState(() => counter++);
}

class HomeScreen extends Screen {
  @override
  HomeData createScreenData() => HomeData();

  // Access via screen.screenData in layouts — cast as needed:
  HomeData get data => screenData as HomeData;
}

Call setState to trigger a rebuild of whichever ScreenLayout is currently visible. Has no effect if no layout is mounted.

Implementers

Constructors

ScreenData()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
setState(VoidCallback fn) → void
Rebuilds the currently visible ScreenLayout.
toString() → String
A string representation of this object.
inherited

Operators

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