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tabbar: check before scroll

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Signed-off-by: 21pages <pages21@163.com>
This commit is contained in:
21pages 2022-08-30 14:43:57 +08:00
parent 7fce02e688
commit 839be76b8f
1 changed files with 11 additions and 2 deletions
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13
flutter/lib/desktop/widgets/tabbar_widget.dart
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@ -64,6 +64,7 @@ class DesktopTabController {
state.update((val) { state.update((val) {
val!.tabs.add(tab); val!.tabs.add(tab);
}); });
state.value.scrollController.itemCount = state.value.tabs.length;
toIndex = state.value.tabs.length - 1; toIndex = state.value.tabs.length - 1;
assert(toIndex >= 0); assert(toIndex >= 0);
} }
@ -96,8 +97,16 @@ class DesktopTabController {
void jumpTo(int index) { void jumpTo(int index) {
state.update((val) { state.update((val) {
val!.selected = index; val!.selected = index;
val.pageController.jumpToPage(index); Future.delayed(Duration.zero, (() {
val.scrollController.scrollToItem(index, center: true, animate: true); if (val.pageController.hasClients) {
val.pageController.jumpToPage(index);
}
if (val.scrollController.hasClients &&
val.scrollController.canScroll &&
val.scrollController.itemCount >= index) {
val.scrollController.scrollToItem(index, center: true, animate: true);
}
}));
}); });
onSelected?.call(index); onSelected?.call(index);
} }