0.87 and below: Crash upon launch iOS 27
維護者通常 1 天內回覆
還沒有人認領這個 Issue。
評估
- 難度
- 4/5
- 預估耗時
- 3-5 天
- 新手友好度
- 35/100
- Issue 類型
- 缺陷
- 描述清晰度
- 需要釐清
- 活躍度
- 活躍
- 技術堆疊
- ios, react-native
- 領域
- mobile
研究方向
先建立一個新的 React Native 應用程式，並在 iOS 27 模擬器上啟動，以重現靜默崩潰。閱讀 issue 中參照的 AppDelegate、SceneDelegate、info.plist 和 pbxproject 變更，並與連結的 pull request 進行比較。當使用 React Native 0.87.1 或更低版本的應用程式能在 iOS 27 上成功啟動時，即表示完成。
由索引模型根據 Issue 內容生成。
描述
Description
Edited description:
In iOS 27, it’s required to handle Lifecycles with SceneDelegate. Failing to adhere to this will cause a crash upon app launch. There is a console output in the Xcode console regarding the SceneDelegate requirement but none that I know of in Metro / RN Dev Tools, I have not checked them.
The concerning part is that an app that does launch on an iOS 26 simulator/phone will fail to launch at all on iOS 27, even though compiling in Xcode 27 will be succesful. Crash with no error output, just silently (for the end user).
Since iOS support has been quite stable historically, at least in my limited experience, this can lead to a dev thinking iOS 26 support = iOS 27 support. However, that does seem to be the case as long as you are on Xcode 26 or below. I believe building and distributing through Xcode 27 is required for the app to crash on iOS 27.
In my case the app even passed App Store review and came all the way through.
Updates to AppDelegate, SceneDelegate, info.plist and pbxproject are needed. As far as I understand, The React Native team have yet to decide an official implementation. However, applying these linked fixes will work for 0.86 and 0.87 (and possible more versions):
Original description kept below:
Yesterday I tested a working copy of my app. When done, I upgraded to Golden Gate and Xcode 27.
This morning I used xcode 27 to distribute to Apple Store. I did not try to run the app before this. The app built fine. App Store deploy. Apple approved it. However, it does not ****** run. It crashes immedately. Since this SceneDelegate portion is missing and xcode 27 needs it.
So Apple has somehow approved an app that crashes immediately.
I'm stressed as hell right now. How do I make my RN 87.1 app support this new iOS 27 / macOS 27 SceneDelegate stuff?
Steps to reproduce
Create an app using React Native new-app. Launch on iOS 27 simulator and watch it crash.
React Native Version
0.87.1 and below
Affected Platforms
Runtime - iOS
Output of npx @react-native-community/cli info
System:
OS: macOS 27.0
CPU: (10) arm64 Apple M4
Memory: 68.91 MB / 16.00 GB
Shell:
version: "5.9"
path: /bin/zsh
Binaries:
Node:
version: 26.8.2
path: /opt/homebrew/bin/node
Yarn: Not Found
npm:
version: 11.19.1
path: /opt/homebrew/bin/npm
Watchman:
version: 2026.07.27.00
path: /opt/homebrew/bin/watchman
Managers:
CocoaPods:
version: 1.16.2
path: /Users/alexstrae/.rbenv/shims/pod
SDKs:
iOS SDK:
Platforms:
- DriverKit 27.0
- iOS 27.0
- macOS 27.0
- tvOS 27.0
- visionOS 27.0
- watchOS 27.0
Android SDK: Not Found
IDEs:
Android Studio: 2025.2 AI-252.27397.103.2522.14514259
Xcode:
version: 27.0/27A266a
path: /usr/bin/xcodebuild
Languages:
Java:
version: 17.0.15
path: /usr/bin/javac
Ruby:
version: 3.4.4
path: /Users/alexstrae/.rbenv/shims/ruby
npmPackages:
"@react-native-community/cli":
installed: 20.2.0
wanted: 20.2.0
react:
installed: 19.2.3
wanted: 19.2.3
react-native:
installed: 0.87.1
wanted: 0.87.1
react-native-macos: Not Found
npmGlobalPackages:
"*react-native*": Not Found
Android:
hermesEnabled: true
newArchEnabled: true
iOS:
hermesEnabled: true
newArchEnabled: true
Stacktrace or Logs
no
MANDATORY Reproducer
no
Screenshots and Videos
No response
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