The app cannot detect window size changes

J_N · May 18, 2025, 6:54am

I can confirm this issue. Also, the left-most sidebar can’t be collapsed with the hamburger button, and scaling doesn’t work well when resizing the window with Stage Manager:

craftzdog · May 19, 2025, 6:28am

Hi @J_N

Thanks for reporting.
These recent regressions are mostly from migrating to the new architecture of the React Native framework

I found a bug in the framework and reported:

github.com/facebook/react-native

`RCTKeyWindowValuesProxy::startObservingWindowSizeIfNecessary` not working

opened 06:03AM - 19 May 25 UTC

craftzdog

Needs: Triage

### Description When the app is starting, it tries to observe the frame changes… of the main window here: ```objc RCTUnsafeExecuteOnMainQueueSync(^{ [RCTKeyWindow() addObserver:self forKeyPath:kFrameKeyPath options:NSKeyValueObservingOptionNew context:nil]; }); ``` However, `RCTKeyWindow()` returns `nil`, so the window size can't be updated. ### Steps to reproduce 1. Create a new project 2. Run it on iPad 3. Resize the window 4. Check `Dimension.get('window')` not updated ### React Native Version 0.79.2 ### Affected Platforms Runtime - iOS ### Output of `npx @react-native-community/cli info` ```text ❯ npx @react-native-community/cli info npm info using npm@11.3.0 npm info using node@v23.6.1 npm warn Unknown user config "arch". This will stop working in the next major version of npm. npm warn Unknown user config "node-linker". This will stop working in the next major version of npm. info Fetching system and libraries information... System: OS: macOS 15.4.1 CPU: (16) arm64 Apple M3 Max Memory: 174.86 MB / 64.00 GB Shell: version: 4.0.1 path: /opt/homebrew/bin/fish Binaries: Node: version: 23.6.1 path: ~/.local/share/mise/installs/node/23.6.1/bin/node Yarn: version: 3.6.4 path: /opt/homebrew/bin/yarn npm: version: 11.3.0 path: ~/.local/share/mise/installs/node/23.6.1/bin/npm Watchman: version: 2025.04.14.00 path: /opt/homebrew/bin/watchman Managers: CocoaPods: version: 1.16.2 path: /opt/homebrew/bin/pod SDKs: iOS SDK: Platforms: - DriverKit 24.4 - iOS 18.4 - macOS 15.4 - tvOS 18.4 - visionOS 2.4 - watchOS 11.4 Android SDK: API Levels: - "29" - "30" - "31" - "32" - "33" - "34" - "35" Build Tools: - 30.0.2 - 30.0.3 - 31.0.0 - 32.0.0 - 33.0.0 - 34.0.0 - 35.0.0 - 35.0.0 - 36.0.0 System Images: - android-32 | Google APIs ARM 64 v8a - android-34 | Google Play ARM 64 v8a - android-36 | Google Play ARM 64 v8a Android NDK: Not Found IDEs: Android Studio: 2024.2 AI-242.23726.103.2422.12816248 Xcode: version: 16.3/16E140 path: /usr/bin/xcodebuild Languages: Java: version: 17.0.1 path: /usr/bin/javac Ruby: version: 3.4.1 path: /Users/nora/.local/share/mise/installs/ruby/3.4.1/bin/ruby npmPackages: "@react-native-community/cli": installed: 18.0.0 wanted: 18.0.0 react: installed: 19.0.0 wanted: 19.0.0 react-native: installed: 0.79.2 wanted: 0.79.2 react-native-macos: Not Found npmGlobalPackages: "*react-native*": Not Found Android: hermesEnabled: true newArchEnabled: true iOS: hermesEnabled: true newArchEnabled: true ``` ### Stacktrace or Logs ```text Thread 1 Queue : com.apple.main-thread (serial) #0 0x000000010838bec4 in RCTKeyWindow at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/RCTUtils.m:595 #1 0x000000010830bcb4 in __62-[RCTKeyWindowValuesProxy startObservingWindowSizeIfNecessary]_block_invoke at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/UIKitProxies/RCTKeyWindowValuesProxy.mm:62 #2 0x000000010838b3ac in RCTUnsafeExecuteOnMainQueueSync at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/RCTUtils.m:292 #3 0x000000010830bba8 in -[RCTKeyWindowValuesProxy startObservingWindowSizeIfNecessary] at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/UIKitProxies/RCTKeyWindowValuesProxy.mm:61 #4 0x00000001082f6758 in invocation function for block in RCTInitializeUIKitProxies() at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/UIKitProxies/RCTInitializeUIKitProxies.mm:21 #5 0x00000001024e9798 in _dispatch_client_callout () #6 0x00000001024d2d00 in _dispatch_once_callout () #7 0x00000001082f6658 in RCTInitializeUIKitProxies [inlined] _dispatch_once(long*, void () block_pointer) [inlined] at /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator18.4.sdk/usr/include/dispatch/once.h:85 #8 0x00000001082f6638 in RCTInitializeUIKitProxies at /Developments/inkdrop/mobile/node_modules/react-native/React/Base/UIKitProxies/RCTInitializeUIKitProxies.mm:17 #9 0x000000010894d9fc in -[RCTHost createSurfaceWithModuleName:mode:initialProperties:] at /Developments/inkdrop/mobile/node_modules/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm:252 #10 0x000000010894dce8 in -[RCTHost createSurfaceWithModuleName:initialProperties:] at /Developments/inkdrop/mobile/node_modules/react-native/ReactCommon/react/runtime/platform/ios/ReactCommon/RCTHost.mm:267 #11 0x0000000108767cac in -[RCTRootViewFactory viewWithModuleName:initialProperties:launchOptions:] at /Developments/inkdrop/mobile/node_modules/react-native/Libraries/AppDelegate/RCTRootViewFactory.mm:147 #12 0x0000000108763590 in -[RCTReactNativeFactory startReactNativeWithModuleName:inWindow:initialProperties:launchOptions:] at /Developments/inkdrop/mobile/node_modules/react-native/Libraries/AppDelegate/RCTReactNativeFactory.mm:83 #13 0x000000010876347c in -[RCTReactNativeFactory startReactNativeWithModuleName:inWindow:launchOptions:] at /Developments/inkdrop/mobile/node_modules/react-native/Libraries/AppDelegate/RCTReactNativeFactory.mm:75 #14 0x0000000107ded7b8 in AppDelegate.application(_:didFinishLaunchingWithOptions:) at /Developments/inkdrop/mobile/ios/Inkdrop/AppDelegate.swift:29 #15 0x0000000107dedf1c in @objc AppDelegate.application(_:didFinishLaunchingWithOptions:) () #16 0x0000000185bcb5f4 in -[UIApplication _handleDelegateCallbacksWithOptions:isSuspended:restoreState:] () #17 0x0000000185bccab8 in -[UIApplication _callInitializationDelegatesWithActions:forCanvas:payload:fromOriginatingProcess:] () #18 0x0000000185bd1e30 in -[UIApplication _runWithMainScene:transitionContext:completion:] () #19 0x00000001851d4360 in -[_UISceneLifecycleMultiplexer completeApplicationLaunchWithFBSScene:transitionContext:] () #20 0x000000018577962c in _UIScenePerformActionsWithLifecycleActionMask () #21 0x00000001851d4c6c in __101-[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:]_block_invoke () #22 0x00000001851d47c8 in -[_UISceneLifecycleMultiplexer _performBlock:withApplicationOfDeactivationReasons:fromReasons:] () #23 0x00000001851d4aa0 in -[_UISceneLifecycleMultiplexer _evalTransitionToSettings:fromSettings:forceExit:withTransitionStore:] () #24 0x00000001851d44b8 in -[_UISceneLifecycleMultiplexer uiScene:transitionedFromState:withTransitionContext:] () #25 0x00000001851df3e4 in __186-[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:]_block_invoke () #26 0x00000001856688c8 in +[BSAnimationSettings(UIKit) tryAnimatingWithSettings:fromCurrentState:actions:completion:] () #27 0x0000000185791c2c in _UISceneSettingsDiffActionPerformChangesWithTransitionContextAndCompletion () #28 0x00000001851df0f0 in -[_UIWindowSceneFBSSceneTransitionContextDrivenLifecycleSettingsDiffAction _performActionsForUIScene:withUpdatedFBSScene:settingsDiff:fromSettings:transitionContext:lifecycleActionType:] () #29 0x000000018500f3bc in __64-[UIScene scene:didUpdateWithDiff:transitionContext:completion:]_block_invoke.201 () #30 0x000000018500e160 in -[UIScene _emitSceneSettingsUpdateResponseForCompletion:afterSceneUpdateWork:] () #31 0x000000018500f03c in -[UIScene scene:didUpdateWithDiff:transitionContext:completion:] () #32 0x0000000185bd0a38 in -[UIApplication workspace:didCreateScene:withTransitionContext:completion:] () #33 0x00000001856922ec in -[UIApplicationSceneClientAgent scene:didInitializeWithEvent:completion:] () #34 0x0000000187bfb03c in __95-[FBSScene _callOutQueue_didCreateWithTransitionContext:alternativeCreationCallout:completion:]_block_invoke () #35 0x0000000187bfb3fc in -[FBSScene _callOutQueue_coalesceClientSettingsUpdates:] () #36 0x0000000187bfaebc in -[FBSScene _callOutQueue_didCreateWithTransitionContext:alternativeCreationCallout:completion:] () #37 0x0000000187c22318 in __93-[FBSWorkspaceScenesClient _callOutQueue_sendDidCreateForScene:transitionContext:completion:]_block_invoke.156 () #38 0x0000000187c06c18 in -[FBSWorkspace _calloutQueue_executeCalloutFromSource:withBlock:] () #39 0x0000000187c20944 in -[FBSWorkspaceScenesClient _callOutQueue_sendDidCreateForScene:transitionContext:completion:] () #40 0x00000001024e9798 in _dispatch_client_callout () #41 0x00000001024d3d0c in _dispatch_block_invoke_direct () #42 0x0000000187c3dfb8 in __FBSSERIALQUEUE_IS_CALLING_OUT_TO_A_BLOCK__ () #43 0x0000000187c3de94 in -[FBSMainRunLoopSerialQueue _targetQueue_performNextIfPossible] () #44 0x0000000187c692ac in -[FBSMainRunLoopSerialQueue _performNextFromRunLoopSource] () #45 0x00000001804284b8 in __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ () #46 0x0000000180428400 in __CFRunLoopDoSource0 () #47 0x0000000180427be4 in __CFRunLoopDoSources0 () #48 0x0000000180422584 in __CFRunLoopRun () #49 0x0000000180421e3c in CFRunLoopRunSpecific () #50 0x0000000190f62d00 in GSEventRunModal () #51 0x0000000185bcec98 in -[UIApplication _run] () #52 0x0000000185bd3064 in UIApplicationMain () #53 0x0000000184f9ad6c in UIKit.UIApplicationMain(Swift.Int32, Swift.Optional<Swift.UnsafeMutablePointer<Swift.UnsafeMutablePointer<Swift.Int8>>>, Swift.Optional<Swift.String>, Swift.Optional<Swift.String>) -> Swift.Int32 () #54 0x0000000107def15c in static UIApplicationDelegate.main() () #55 0x0000000107def0cc in static AppDelegate.$main() () #56 0x0000000107defcbc in main () #57 0x00000001025cd3d8 in start_sim () #58 0x0000000102826b4c in start () ``` ### MANDATORY Reproducer https://github.com/craftzdog/rn79-bugreport ### Screenshots and Videos ![Image](https://github.com/user-attachments/assets/feec0edd-d801-4cb3-9e02-af023192d752)

I hope they will fix it soon!

craftzdog · May 28, 2025, 1:43am

Found a workaround that can avoid the framework bug mentioned above.

Released v5.6.5:

Thanks again for reporting!

J_N · May 28, 2025, 8:23am

Cool. Works as expected. There seems to be a flicker when changing notes: it’s like the old note remains on screen for a split second before the selected one appears, and it looks like it’s designed that way; the old note seems to sweep upwards to reveal the selected one. Anyway, a minor thing, the main thing is that it works now

craftzdog · May 30, 2025, 6:18am

Yeah, the layout transition may have a flicker at the moment, which is hard to solve.
Thanks for the feedback!