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Fix scroll bar divisions not appearing

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This commit is contained in:
ashilkn
2025-07-16 11:14:29 +05:30
parent 30f8162ee4
commit 7340e5a100
1 changed files with 12 additions and 10 deletions
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22
mobile/apps/photos/lib/ui/viewer/gallery/scrollbar/custom_scroll_bar_2.dart
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@@ -57,7 +57,7 @@ class _CustomScrollBar2State extends State<CustomScrollBar2> {
static const _bottomPadding = 92.0;
double? heightOfScrollbarDivider;
double? heightOfScrollTrack;
late final bool _showScrollbarDivisions;
late bool _showScrollbarDivisions;
// Scrollbar's heigh is not fixed by default. If the scrollable is short
// enough, the scrollbar's height can go above the minimum length.
@@ -69,6 +69,17 @@ class _CustomScrollBar2State extends State<CustomScrollBar2> {
@override
void initState() {
super.initState();
_init();
}
@override
void didUpdateWidget(covariant CustomScrollBar2 oldWidget) {
super.didUpdateWidget(oldWidget);
_init();
}
void _init() {
_logger.info("Initializing CustomScrollBar2");
if (widget.galleryGroups.groupLayouts.last.maxOffset >
widget.heighOfViewport * 5) {
_showScrollbarDivisions = true;
@@ -94,16 +105,7 @@ class _CustomScrollBar2State extends State<CustomScrollBar2> {
}
}
@override
void didUpdateWidget(covariant CustomScrollBar2 oldWidget) {
super.didUpdateWidget(oldWidget);
if (_showScrollbarDivisions) {
_computePositionToTitleMap();
}
}
Future<void> _computePositionToTitleMap() async {
_logger.info("computing postition to title map");
final result = <({double position, String title})>[];
heightOfScrollTrack = await _getHeightOfScrollTrack();
final maxScrollExtent = widget.scrollController.position.maxScrollExtent;