[Android] Inverted FlatList + Text Input causing ANR on android 13

[hannojg]

Description

When having a FlatList and a TextInput in one view and the FlatList has the inverted={true} prop set and the android device is on API 33 (Android 13) the app will freeze/die in an ANR.

Screen.Recording.2022-11-15.at.12.52.22.mov

Version

0.70.5

Output of npx react-native info

info Fetching system and libraries information...
System:
 OS: macOS 12.6
 CPU: (8) arm64 Apple M1 Pro
 Memory: 96.63 MB / 16.00 GB
 Shell: 5.8.1 - /bin/zsh
 Binaries:
 Node: 16.15.1 - ~/.nvm/versions/node/v16.15.1/bin/node
 Yarn: 1.22.19 - ~/.yarn/bin/yarn
 npm: 8.11.0 - ~/.nvm/versions/node/v16.15.1/bin/npm
 Watchman: Not Found
 Managers:
 CocoaPods: Not Found
 SDKs:
 iOS SDK:
 Platforms: DriverKit 21.4, iOS 16.0, macOS 12.3, tvOS 16.0, watchOS 9.0
 Android SDK:
 API Levels: 28, 29, 30, 31, 32, 33
 Build Tools: 29.0.2, 30.0.2, 30.0.3, 31.0.0, 32.0.0, 32.1.0, 33.0.0
 System Images: android-32 | Google APIs ARM 64 v8a, android-32 | Google APIs Intel x86 Atom_64, android-32 | Google Play ARM 64 v8a, android-33 | Google APIs ARM 64 v8a, android-33 | Google Play ARM 64 v8a
 Android NDK: 21.4.7075529
 IDEs:
 Android Studio: Chipmunk 2021.2.1 Patch 1 Chipmunk 2021.2.1 Patch 1
 Xcode: 14.0.1/14A400 - /usr/bin/xcodebuild
 Languages:
 Java: 17.0.5 - /Users/hannogodecke/.jenv/shims/javac
 npmPackages:
 @react-native-community/cli: Not Found
 react: 18.1.0 => 18.1.0 
 react-native: 0.70.5 => 0.70.5 
 react-native-macos: Not Found
 npmGlobalPackages:
 *react-native*: Not Found

Steps to reproduce

• Clone this repository
• Run yarn
• Run yarn start
• Run yarn android, make sure the app launches on a device with android API 33 (Android 13)
• Open the app
• Open the developer tools and enable the performance monitor
• Focus the text input
• Run the following in your terminal:

adb shell input text "Lorem\ ipsum\ dolor\ sit\ amet,\ consetetur\ sadipscing\ elitr,\ sed\ diam\ nonumy\ eirmod\ tempor\ invidunt\ ut\ labore\ et\ dolore\ magna\ aliquyam\ erat,\ sed\ diam\ voluptua.\ At\ vero\ eos\ et\ accusam\ et\ justo\ duo\ dolores\ et\ ea\ rebum.\ Stet\ clita\ kasd\ gubergren,\ no\ sea\ takimata\ sanctus\ est\ Lorem\ ipsum\ dolor\ sit\ amet.\ Lorem\ ipsum\ dolor\ sit\ amet,\ consetetur\ sadipscing\ elitr,\ sed\ diam\ nonumy\ eirmod\ tempor\ invidunt\ ut\ labore\ et\ dolore\ magna\ aliquyam\ erat,\ sed\ diam\ voluptua.\ At\ vero\ eos\ et\ accusam\ et\ justo\ duo\ dolores\ et\ ea\ rebum.\ Stet\ clita\ kasd\ gubergren,\ no\ sea\ takimata\ sanctus\ est\ Lorem\ ipsum\ dolor\ sit\ amet."

• Run it repeatedly until the app freezes (for me it takes ~ 3 repetitions until the ANR happens. On a real Pixel 4 of a colleague the app almost freezes immediately).

Snack, code example, screenshot, or link to a repository

https://github.com/hannojg/RN-AndroidAPI33-TextInput-ANR

[rudenick0309]

#35155
The similar problem seems to occur even with only 'TextInput'

[hannojg]

Interestingly the TextInput works for me on the device but stops working once it's next to an inverted FlatList. So I am not entirely sure if it's related, but I will test the reproduction of the issue you mentioned as well!

[hannojg]

Observations I made:

• I just put a plain android EditText view instead of RN's TextInput and the issue still happens (so I assume it isn't the TextInput implementation)
• I tried it with VirtualizedList and the following styles (to re-create the inverted effect), but the ANR still happens:

style={{
 transform: [{scaleY: -1}],
}}
contentContainerStyle={{
 transform: [{scaleY: -1}],
}}

• I tried it with ScrollView (used by VirtualizedList) using the styles above, and the issue keeps happening as well
• If I don't do the inverted styling (its the same way VirtualizedList does it) the ANR doesn't happen

Still looking for the place that's causing the issue 🔍

[JuanAlejandro]

@hannojg we had the same problem with our app. We are using the inverted FlatList in our chat screen. One time I wasn't typing, I was just receiving messages and the app froze. So I'm not 100% sure the TextInput is needed to repro. The workaround we implemented was to invert the list with styles instead of the prop. You can check the solution in this Github issue.

Ah! And also this issue was happening only for Pixel devices with Android 13. Since the first family of devices to get Android 13 was the Pixel, maybe that's why we only saw this issue in Pixel devices.

[hannojg]

Wow thx for sharing this information, will give it a try!

What I found is, that you don't even need a list. You just need two views that have scaleY: 1 set:

 <View
 style={{
 flex: 1,
 backgroundColor: 'red',
 transform: [{scaleY: -1}],
 }}>
 <View
 style={{
 transform: [{scaleY: -1}],
 }}>
 {/* Some more children inside here that got inverted */}

However, I still need to input text constantly into a TextInput to cause the ANR 😅

[hannojg]

Okay, the issue doesn't happen anymore if I also add scaleX: -1 👀 :

 <View
 style={{
 flex: 1,
 backgroundColor: 'red',
 transform: [{scaleX: -1}, {scaleY: -1}],
 }}>
 <View
 style={{
 transform: [{scaleX: -1}, {scaleY: -1}],
 }}>

Going to dig into the native code to see where the issue happens, maybe also a bug with yoga?

[rudenick0309]

@hannojg @JuanAlejandro sorry for telling this, this problem was occured at real device of galaxy22 with google play system version - 22.07.01, but, after updating google play system version to '22.10.01'. the problem was disappeared. ( i could not test my local, that device is our customer. )
so, i am looking for other galaxy22 for verifying. after results are out, i will write down.

[hannojg]

I just found the offending line that's causing the issue. If I remove the view.setRotationX line the issue stops happening.
At this point I am not sure whether this is a react native or an android bug. Will dig deeper:

https://github.com/facebook/react-native/blob/e504141583fc2b695fb42a1037edf92c89ae552a/ReactAndroid/src/main/java/com/facebook/react/uimanager/BaseViewManager.java#L441-L483