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feat(ios): add direction to ListView scrolling #14130

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Merged
merged 6 commits into from
Oct 5, 2024
Merged

feat(ios): add direction to ListView scrolling #14130

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a7ac1d4
feat(ios): add direction to ListView scrolling
m1ga Oct 3, 2024
6f7e07c
Update iphone/Classes/TiUIListView.m
m1ga Oct 5, 2024
24acf7e
fix: fix “direction” event attribute default
hansemannn Oct 5, 2024
d109bb5
fix: fix incorrect type
hansemannn Oct 5, 2024
e50586b
chore: align “unknown” value with Android, update docs
hansemannn Oct 5, 2024
1551e8d
Merge branch 'master' into iosScrollingDirection
m1ga Oct 5, 2024
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12 changes: 12 additions & 0 deletions iphone/Classes/TiUIListView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ @interface TiUIListView ()
@property (nonatomic, readonly) TiUIListViewProxy *listViewProxy;
@property (nonatomic, copy, readwrite) NSString *searchString;
@property (nonatomic, copy, readwrite) NSString *searchedString;
@property (nonatomic, assign) CGFloat lastContentOffset;
@end

static TiViewProxy *FindViewProxyWithBindIdContainingPoint(UIView *view, CGPoint point);
Expand Down Expand Up @@ -2011,6 +2012,15 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView
TiUIListSectionProxy *section;
CGFloat topSpacing = scrollView.contentOffset.y + scrollView.adjustedContentInset.top;

NSString *direction = [NSNull null];

if (self.lastContentOffset > scrollView.contentOffset.y) {
direction = @"down";
} else if (self.lastContentOffset < scrollView.contentOffset.y) {
direction = @"up";
}
self.lastContentOffset = scrollView.contentOffset.y;

if ([indexPaths count] > 0) {
NSIndexPath *indexPath = [self pathForSearchPath:[indexPaths objectAtIndex:0]];
NSUInteger visibleItemCount = [indexPaths count];
Expand All @@ -2022,6 +2032,7 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView
[eventArgs setValue:section forKey:@"firstVisibleSection"];
[eventArgs setValue:[section itemAtIndex:[indexPath row]] forKey:@"firstVisibleItem"];
[eventArgs setValue:NUMINTEGER(topSpacing) forKey:@"top"];
[eventArgs setValue:direction forKey:@"direction"];

if (lastVisibleItem != [indexPath row] || lastVisibleSection != [indexPath section] || forceUpdates) {
// only log if the item changes or forced
Expand All @@ -2038,6 +2049,7 @@ - (void)scrollViewDidScroll:(UIScrollView *)scrollView
[eventArgs setValue:section forKey:@"firstVisibleSection"];
[eventArgs setValue:NUMINTEGER(-1) forKey:@"firstVisibleItem"];
[eventArgs setValue:NUMINTEGER(topSpacing) forKey:@"top"];
[eventArgs setValue:direction forKey:@"direction"];
}
});
}
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