fix(iOS): header snapshots not working #2393
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kkafar
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Oct 8, 2024
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Hey, I need you to confirm that this PR does not introduce regression on #2230.
You can test specifically on @tboba's reproduction: #2230 (comment)
If we don't have a regression I need you to explain what other change fixed the issue mentioned in #2230. Otherwise I'm a bit reluctant, cause it might be working only by accident.
kkafar
requested changes
Oct 15, 2024
ios/RNSScreen.h
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| @property (nonatomic) react::LayoutMetrics newLayoutMetrics; | ||
| @property (weak, nonatomic) RNSScreenStackHeaderConfig *config; | ||
| @property (nonatomic, readonly) BOOL hasHeaderConfig; | ||
| @property (nonatomic) BOOL isGoingToBeRemoved; |
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We don't need this in public API of Screen component
Suggested change
| @property (nonatomic) BOOL isGoingToBeRemoved; |
Co-authored-by: Kacper Kafara <kacper.kafara@swmansion.com>
kkafar
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Oct 25, 2024
The `updateViewControllerIfNeeded` call introduced by #2230 forces the view controller to rebuild the subviews with the recent config. When the screen is being unmounted it replaces the subviews with nil values as the `reactSubviews` are removed from the config one by one. Snapshots made earlier get discarded in the process. This PR adds a condition that prevents updating the view controller when the screen is being changed + stops unnecessary snapshots when the screen is not changed. - updated `Test556.tsx` repro - added `isGoingToBeRemoved` property to `RNSScreenView` - making snapshots / updating the view controller conditionally <!-- --> - Use `Test556.tsx` repro - [x] Included code example that can be used to test this change - [x] Ensured that CI passes --------- Co-authored-by: Kacper Kafara <kacper.kafara@swmansion.com> Co-authored-by: Kacper Kafara <kacperkafara@gmail.com> (cherry picked from commit e4333a1)
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Description
The
updateViewControllerIfNeededcall introduced by #2230 forces the view controller to rebuild the subviews with the recent config.When the screen is being unmounted it replaces the subviews with nil values as the
reactSubviewsare removed from the config one by one. Snapshots made earlier get discarded in the process.This PR adds a condition that prevents updating the view controller when the screen is being changed + stops unnecessary snapshots when the screen is not changed.
Changes
Test556.tsxreproisGoingToBeRemovedproperty toRNSScreenViewTest code and steps to reproduce
Test556.tsxreproChecklist