quitPlayer method crushes the entire application

[gianfrancopapa]

Hi! When trying to use the method quitPlayer on dispose the app crushes.

void onUnityCreated(controller) {
    this._unityWidgetController = controller;
    ...
}
@override
  void dispose() { 
    _unityWidgetController.quitPlayer();
    super.dispose();
}

I don't know if this is related to the library or is related to a bug in Unity.
In xcode I am getting these 2 errors before the crush, could it be something about onDestroy() method?

First error:

[XRInputSubsystem] A device disconnection with the id 0 has been reported but no device with that id was connected.
UnityEngine.SubsystemManager:DestroyInstance_Internal(IntPtr)
UnityEngine.IntegratedSubsystem:Destroy()
UnityEngine.XR.Management.XRLoaderHelper:DestroySubsystem()
UnityEngine.XR.ARKit.ARKitLoader:Deinitialize()
UnityEngine.XR.Management.XRManagerSettings:DeinitializeLoader()
UnityEngine.XR.Management.XRGeneralSettings:DeInitXRSDK()
UnityEngine.XR.Management.XRGeneralSettings:Quit()
System.Action:Invoke()
UnityEngine.Application:Internal_ApplicationQuit()

Second error: I think this error is more related to something done wrong in unity side but just in case.

Setting up 1 worker threads for Enlighten.
  Thread -> id: 16c707000 -> priority: 1 
Audio Missng System.NullReferenceException: Object reference not set to an instance of an object.
  at PortalTrigger.ChangeMaterials (System.Boolean _fullRender) [0x00000] in <00000000000000000000000000000000>:0 
  at PortalTrigger.OnDestroy () [0x00000] in <00000000000000000000000000000000>:0 
UnityEngine.DebugLogHandler:Internal_Log(LogType, LogOption, String, Object)
UnityEngine.DebugLogHandler:LogFormat(LogType, Object, String, Object[])
UnityEngine.Logger:Log(LogType, Object)
UnityEngine.Debug:Log(Object)
PortalTrigger:ChangeMaterials(Boolean)
PortalTrigger:OnDestroy()

[qiuguian]

I also got this problem, how to fit it.

[qiuguian]

@gianfrancopapa It works for me,but it can run again _:
@OverRide
void dispose() {
_unityWidgetController.pause();
_unityWidgetController.quitPlayer();
super.dispose();
}

[gianfrancopapa]

Hi @qiuguian, I tried pausing the player and quiting and it didn't crush. However I can't open again another instance of the unity player. I was reading the unity documentation and found out this:

So, I think this is suposed to happen once you call quitPlayer() method.

[qiuguian]

@gianfrancopapa This is indeed the case, and I currently do not have a good way to sort it out.

[qiuguian]

I tried to use unload instead of quitPlayer, and them post a message to tell unity to clean object,This is my current approach。Can't quit all unity.

[juicycleff]

@qiuguian yes there is a limitation to quitting the unity player as it also kills the main thread, which in turn kills the entire app. This is a limitation from unity but I heard might be fixed in the future. Best use unload. Albeit unload is not very functional for iOS as you can't recreate the player. I'm trying to fix this at the moment

[singno]

@qiuguian yes there is a limitation to quitting the unity player as it also kills the main thread, which in turn kills the entire app. This is a limitation from unity but I heard might be fixed in the future. Best use unload. Albeit unload is not very functional for iOS as you can't recreate the player. I'm trying to fix this at the moment

Hello, juicycleff. Has the unload function fixed? I find it works well in the official repo.

https://github.com/Unity-Technologies/uaal-example

[mathtasatlime]

Okay, I'm also stuck at the mom at the same prob.
I create an UnityView (game in unity) in my flutter App. After the games is finished the app continues in flutter by starting a different frame, but the unity is still running in the back. When I now try to start another game I dont know how to say to Unity to restart the game. What is the right trigger point to call the function restart() in my GameManager GameObject?
The only message I receive is when the unityviewcontroller is created but at that point I can not be sure that the GameManager already exists.

Do you have an idea or know a good timepoint when to trigger restart()?

[nominator]

This issue is closed in 3.0.0 according to the changelog, however when I tried, it still kills the app. Also the doc in the code says that the optional silent argument to quit function is supposed to prevent the kill but is WIP. So how come this bug is closed here? Can @juicycleff please provide some detail. I need the ability to leave a unity player instance and reload with a different state of the game. It would massively help if there is some way to do that. Thanks

[khal-it]

im still facing the same issue in the current version (3.0.2) ...

[tom-eg]

I'm using 3.0.0 unity script and current version 3.0.2, but problem's same here