page_controller_listenable

Description:

page controller listenable

Page Controller Listenable #
A listenable that wraps around the PageController.
This listenable extends ValueListenable<double> and can be quickly passed into animations, where the type check would fail against the PageController.
Example #
class ExampleWidgetState extends State<ExampleWidget> {
late PageController _pageController;
late PageControllerListenable _pageControllerListenable;

@override
void initState() {
_pageController = PageController();
_pageControllerListenable = PageControllerListenable(_pageController);
super.initState();
}

@override
void dispose() {
_pageControllerListenable.dispose();
_pageController.dispose();
super.dispose();
}

@override
Widget build(BuildContext context) {
return WidgetWithSomeAnimation(
animation: _pageControllerListenable,
child: ...
);
}
}
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There's a hook included too.
Hook example #
class ExampleWidget extends HookWidget {
@override
Widget build(BuildContext context) {
final pageController = usePageController();
final pageControllerListenable = usePageControllerListenable(pageController);

return WidgetWithSomeAnimation(
animation: pageControllerListenable,
child: ...
);
}
}
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