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fix: guard scroll operations against infinite extents

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This commit is contained in:
edde746
2026-03-28 13:51:39 +01:00
parent 46ebda944a
commit 53d50dbc3b
3 changed files with 16 additions and 3 deletions
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lib/utils/scroll_utils.dart
+6 -2
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@@ -23,7 +23,9 @@ void scrollToCurrentItem(ScrollController controller, GlobalKey firstItemKey, in
if (!controller.hasClients) return;
final itemHeight = (firstItemKey.currentContext?.findRenderObject() as RenderBox?)?.size.height;
if (itemHeight == null) return;
final target = (currentIndex * itemHeight).clamp(0.0, controller.position.maxScrollExtent);
final maxExtent = controller.position.maxScrollExtent;
if (!maxExtent.isFinite) return;
final target = (currentIndex * itemHeight).clamp(0.0, maxExtent);
controller.jumpTo(target);
});
}
@@ -42,8 +44,10 @@ void scrollListToIndex(
if (controller.positions.length != 1 || itemExtent <= 0) return;
final viewport = controller.position.viewportDimension;
final maxExtent = controller.position.maxScrollExtent;
if (!viewport.isFinite || !maxExtent.isFinite) return;
final targetCenter = leadingPadding + (index * itemExtent) + (itemExtent / 2);
final desiredOffset = (targetCenter - (viewport / 2)).clamp(0.0, controller.position.maxScrollExtent);
final desiredOffset = (targetCenter - (viewport / 2)).clamp(0.0, maxExtent);
if (animate) {
controller.animateTo(desiredOffset, duration: const Duration(milliseconds: 150), curve: Curves.easeOut);