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Use PageStorage to store state

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nyne
2024-12-09 19:56:43 +08:00
parent 1104d28f14
commit 72b146a9bf
5 changed files with 188 additions and 79 deletions
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13
lib/components/appbar.dart
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@@ -281,7 +281,9 @@ class _FilledTabBarState extends State<FilledTabBar> {
_IndicatorPainter? painter;
var scrollController = ScrollController();
var scrollController = ScrollController(
keepScrollOffset: false
);
var tabBarKey = GlobalKey();
@@ -298,12 +300,20 @@ class _FilledTabBarState extends State<FilledTabBar> {
super.dispose();
}
PageStorageBucket get bucket => PageStorage.of(context);
@override
void didChangeDependencies() {
_controller = widget.controller ?? DefaultTabController.of(context);
_controller.animation!.addListener(onTabChanged);
initPainter();
super.didChangeDependencies();
var prevIndex = bucket.readState(context) as int?;
if (prevIndex != null && prevIndex != _controller.index) {
Future.microtask(() {
_controller.index = prevIndex;
});
}
}
@override
@@ -387,6 +397,7 @@ class _FilledTabBarState extends State<FilledTabBar> {
}
updateScrollOffset(i);
previousIndex = i;
bucket.writeState(context, i);
}
void updateScrollOffset(int i) {