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correct scrollable position when hiding top bar

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Signed-off-by: dom <githubaccount56556@proton.me>
This commit is contained in:
dom
2026-03-07 10:06:37 +08:00
parent fefb5c837b
commit db08af6ca5
3 changed files with 29 additions and 3 deletions
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27
lib/pages/common/common_page.dart
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@@ -11,6 +11,8 @@ abstract class CommonPageState<T extends StatefulWidget> extends State<T> {
RxBool? _showBottomBar;
final _mainController = Get.find<MainController>();
bool get needsCorrection => false;
@override
void initState() {
super.initState();
@@ -63,11 +65,32 @@ abstract class CommonPageState<T extends StatefulWidget> extends State<T> {
bool onNotificationType2(ScrollNotification notification) {
if (!_mainController.useBottomNav) return false;
if (notification.metrics.axis == .horizontal) return false;
final metrics = notification.metrics;
if (metrics.axis == .horizontal) return false;
if (notification is ScrollUpdateNotification) {
if (notification.dragDetails == null) return false;
_updateOffset(notification.scrollDelta ?? 0.0);
final pixel = metrics.pixels;
final scrollDelta = notification.scrollDelta ?? 0;
if (pixel < 0.0 && scrollDelta > 0) return false;
if (needsCorrection) {
final value = _barOffset!.value;
final newValue = clampDouble(
value + scrollDelta,
0.0,
StyleString.topBarHeight,
);
final offset = newValue - value;
if (offset != 0) {
_barOffset!.value = newValue;
if (pixel < 0.0 && scrollDelta < 0.0 && value > 0.0) {
return false;
}
Scrollable.of(notification.context!).position.correctBy(-offset);
}
} else {
_updateOffset(scrollDelta);
}
return false;
}