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YGOverflowScroll is not working with UIScrollView #940
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Apr 27, 2023
Summary: X-link: facebook/litho#940 Pull Request resolved: #1252 X-link: facebook/react-native#36993 Fabric relies on the private C++ internals of Yoga. This creates a conundrum in the open source build due to how header creation in Cocoapods works. 1. The default mechanism of specifying public headers needs to include the private headers for them to be made usable by fabric (by default) 2. Cocoapods will roll up all of the public headers when importing a module facebook/react-native#33381 fixed the Fabric Cocoapods build which ran into this. React Native relies on FlipperKit which relies on YogaKit, which in turn finally imports the Yoga podspec. Because YogaKit may use Swift, we can only expose the public Yoga C ABI. The first solution in that PR was to allow RN to access Yoga private headers, but this was changed to instead make all Yoga headers public, and to add ifdefs to all of them to no-op when included outside of a C++ environment. Talking to Kudo, we should be able to change back to the earlier approach in the PR, to instead expose the private headers to only RN. This lets us avoid exposing headers that we ideally wouldn't be, and lets us avoid the messy ifdefs in every Yoga header. Changelog: [Internal] Reviewed By: rshest Differential Revision: D45139075 fbshipit-source-id: 99152986a578f7aac8324dffe0e18c42a38cc6a5
Any Update ? I found that YGValueAuto is work out but YGPercentValue(100) does not . |
We are deprecating YogaKit as part of the Yoga 2.0 release. We are still going to release a new revision based on the current state of the repo, but won't be accepting new contributions, since we are going to be removing it from the repo after. |
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[self.view configureLayoutWithBlock:^(YGLayout * _Nonnull layout) {
layout.isEnabled = YES;
layout.flexDirection = YGFlexDirectionColumn;
}];
UIScrollView *scrollview = [[UIScrollView alloc] init];
[self.view addSubview:scrollview];
[scrollview configureLayoutWithBlock:^(YGLayout * _Nonnull layout) {
layout.isEnabled = YES;
layout.width = YGPercentValue(100);
layout.height = YGPercentValue(100);
layout.flexDirection = YGFlexDirectionColumn;
layout.overflow = YGOverflowScroll;
}];
UIView *view1 = [[UIView alloc] init];
[view1 setBackgroundColor:[UIColor redColor]];
[scrollview addSubview:view1];
[view1 configureLayoutWithBlock:^(YGLayout * _Nonnull layout) {
layout.isEnabled = YES;
layout.width = YGPercentValue(100);
layout.height = YGPercentValue(50);
}];
[self.view.yoga applyLayoutPreservingOrigin:NO];
After call ApplyLayout, scrollview contentSize not correct
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