[Android] A random exception occurred while updating prop xxx

[solartcc]

Description

I embed two ReactFragment into ViewPager of a Activity, each ReactFragment loads a different bundle file at the same time. Then we have come across a random crash as the log below, probability is about 60-70%. According to the information, it seems that ReactNative has some problem on dealing with multi ReactFragment loaded at the same time in a same Activity.

The bundle file works well with ReactActivity or single ReactFragment.

Exception log

04-02 16:51:52.102 8996-10354/? E/unknown:ViewManager: Error while updating prop left
java.lang.IllegalArgumentException: method com.facebook.react.uimanager.LayoutShadowNode.setPositionValues argument 1 has type int, got null
at java.lang.reflect.Method.invoke(Native Method)
at com.facebook.react.uimanager.ViewManagersPropertyCache$PropSetter.updateShadowNodeProp(ViewManagersPropertyCache.java:104)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater$FallbackShadowNodeSetter.setProperty(ViewManagerPropertyUpdater.java:148)
at com.facebook.react.uimanager.ViewManagerPropertyUpdater.updateProps(ViewManagerPropertyUpdater.java:52)
at com.facebook.react.uimanager.ReactShadowNode.updateProperties(ReactShadowNode.java:258)
at com.facebook.react.uimanager.UIImplementation.createView(UIImplementation.java:184)
at com.facebook.react.uimanager.UIManagerModule.createView(UIManagerModule.java:235)
at java.lang.reflect.Method.invoke(Native Method)
at com.facebook.react.bridge.BaseJavaModule$JavaMethod.invoke(BaseJavaModule.java:319)
at com.facebook.react.cxxbridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:158)
at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
at android.os.Handler.handleCallback(Handler.java:743)
at android.os.Handler.dispatchMessage(Handler.java:95)
at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:31)
at android.os.Looper.loop(Looper.java:150)
at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:196)
at java.lang.Thread.run(Thread.java:833)

others, for example:

04-02 17:03:59.075 8996-10826/? E/unknown:ViewManager: Error while updating prop marginRight
...
04-02 17:05:08.362 8996-11119/? E/unknown:ViewManager: Error while updating prop position
...
04-02 17:06:07.946 8996-11424/? E/unknown:ViewManager: Error while updating prop height
...
04-02 17:07:24.751 8996-11885/? E/unknown:ViewManager: Error while updating prop bottom
...
04-02 17:10:18.569 8996-12535/? E/unknown:ViewManager: Error while updating prop flexDirection
...
04-02 17:13:05.374 8996-13067/? E/unknown:ViewManager: Error while updating prop right
...

or other random props.

Solution

I did't find a very correct solution. However, I found that when the exception caught by NativeModuleCallExceptionHandler I through invoke the XReactInstanceManagerImpl::recreateReactContextInBackgroundFromBundleLoader to reload the bundle file, in this way it can be normal rendering again.

I expect to find a real solution. Thanks!

Additional Information

• React Native version: 0.41.0
• Platform: Android
• Development Operating System: MacOS
• Dev tools: Android Studio 2.2, Android SDK 16+

[hramos]

Closing as the issue did not provide a list of repro steps as required by the template.

[wuguokai]

@solartcc hi,could you have solve the problem?I got same exception!