Samsung Galaxy A54 5G sample app crash on launch due to ZoomVideoSDKVideoHelper.rotateMyVideo(int)' on a null object reference

Video SDK React Native
1

Description
Samsung Galaxy A54 5G sample app crash on launch due to:
ZoomVideoSDKVideoHelper.rotateMyVideo(int)’ on a null object reference

commenting out (in Android studio) this line
protected void refreshRotation() {
int displayRotation = display.getRotation();
// boolean ret = ZoomVideoSDK.getInstance().getVideoHelper().rotateMyVideo(displayRotation);
}
temporary resolve the crash and the app work as expected

Errors
FATAL EXCEPTION: main
Process: com.ekaansh.zoomexpo, PID: 28549
java.lang.NullPointerException: Attempt to invoke interface method ‘boolean us.zoom.sdk.ZoomVideoSDKVideoHelper.rotateMyVideo(int)’ on a null object reference
at com.reactnativezoom.videosdk.RNZoomViewManager.refreshRotation(RNZoomViewManager.java:230)
at com.reactnativezoom.videosdk.RNZoomViewManager$1.onDisplayChanged(RNZoomViewManager.java:220)
at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate.handleMessage(DisplayManagerGlobal.java:1774)
at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate.lambda$sendDisplayEvent$0(DisplayManagerGlobal.java:1742)
at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate.$r8$lambda$aO0d1U2yv7-42_0MvY8uEf7AtpE(Unknown Source:0)
at android.hardware.display.DisplayManagerGlobal$DisplayListenerDelegate$$ExternalSyntheticLambda0.run(Unknown Source:6)
at android.os.Handler.handleCallback(Handler.java:958)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:230)
at android.os.Looper.loop(Looper.java:319)
at android.app.ActivityThread.main(ActivityThread.java:8919)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:578)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1103)
2025-04-09 16:26:06.560 772-772 Layer surfaceflinger

Which React Native Video SDK version?
“@zoom/react-native-videosdk”: “^1.13.10”, (from sample app)
Trying to upgrade to
“@zoom/react-native-videosdk”: “^1.13.12”, or even
“@zoom/react-native-videosdk”: “^2.1.10”,
did not fix the issue

Video SDK Code Snippets
Just running the sample app and launching the app on Samsung Galaxy A54 5G
videosdk-reactnative-quickstart

To Reproduce(If applicable)
Steps to reproduce the behavior:

  1. Clone videosdk-reactnative-quickstart
  2. run yarn
  3. run npx expo start
  4. run npx expo run:android --device
  5. App is build and installed on Samsung Galaxy A54 5G
  6. Open the app - app crash
  7. check logcat error -ZoomVideoSDKVideoHelper.rotateMyVideo(int) on a null object reference

Screenshots
N/A

Troubleshooting Routes

This is happening on the videosdk-reactnative-quickstart
Commenting out the related code with Android studio temporary avoid the crash

Smartphone (please complete the following information):

  • Device: Samsung Galaxy A54 5G
  • OS: Android version 14 , One UI version 6.1

Additional context
N/A

2

HI @Yohay,

Thanks for detailing the issue you’re facing and walking through it with me during developer office hours. After looking into it a bit more, this issue might be due to Android’s DisplayManager triggering onDisplayChanged before the Zoom session has started. This would cause the error-causing method to happen too soon and lead to the crash. Adding a null check could possibly help prevent this.

@ekaansh.zoom @ticorrian.heard could you either of you speak more to this issue and provide a fix? The developer is running into this issue when attempting to build the app from this blog.

Best,
Rehema

3

Hi @Yohay are you seeing the same error with the latest version of the SDK (v2.1.10)? I updated the GitHub repo to use the latest release here.

4

Hi,
Yes just pulled the last version with
“@zoom/react-native-videosdk”: “^2.1.10”, and the app still crash on Android as soon as app open with the same error I also had to change

minSdkVersion = Integer.parseInt(findProperty(‘android.minSdkVersion’) ?: ‘24’) to minSdkVersion = Integer.parseInt(findProperty(‘android.minSdkVersion’) ?: ‘26’) Otherwise npx expo run:android --device failed

1 Like
5

Hey @Yohay, I put together a repro for using rotateMyVideo here: feat: repro rotate · EkaanshArora/vsdk-rn-rotate-repro@24ba089 · GitHub.
This is working as expected for me on @zoom/react-native-videosdk v2.1.10

const [rotation, setRotation] = useState(false);
  const onPressVideo = async () => {
    !rotation ? await zoom.videoHelper.rotateMyVideo(90) : await zoom.videoHelper.rotateMyVideo(0);
    setRotation(!rotation);
  };

Screenshot_1744891535
Screenshot_17448915351080×2400 63.1 KB
Screenshot_1744891538
Screenshot_17448915381080×2400 59.2 KB

The minSdkVersion is a good callout, I’ll check with the team if we can avoid having the user change this manually, thanks!

6

Hi Ekaansh,

Thanks for the update,
However my issue that the sample app crash on Android immediately when app open, I don’t even try to rotate the camera it just crashes soon as the app open
This is a Native Android crash - it may only happen on my test device (Samsung Galaxy A54 5G) or may be a larger issue with Samsung devices in general
If you don’t have access to this or similar device you can try Samsung free to try remote-test-lab service

I pinpoint the crash to native Android code in the SDK:

protected void refreshRotation() {
int displayRotation = display.getRotation();
->> boolean ret = ZoomVideoSDK.getInstance().getVideoHelper().rotateMyVideo(displayRotation);
}

I’m going to use a local patch by commenting out this line to temporary override the crash but will appreciate if Zoom team can investigate and fix this native crash

7

I’ll work with engineering to investigate if this is a device specific bug, thanks for your help on this!

8

Can confirm that this also happens to non-samsung devices

  • RMP2204 (SP1A.210812.016)
  • Android 13

First encountered in "@zoom/react-native-videosdk": "1.13.10"

Tried to update to 2.1.10, same error
Tried 1.13.12, same error

Attempt to invoke interface method 'boolean us.zoom.sdk.ZoomVideoSDKVideoHelper.rotateMyVideo(int)' on a null object reference

I can provide a sentry log if that would help narrow it down.

9

@Yohay @Ray_Arvin We have a 2.2.0 release that fixes this issue, can you please try and let us know if it works? Thank you!

1 Like