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Unity Android Toast Msg and Download Manager

scopevcsscopevcs Posts: 10 Oculus Start Member
edited January 2016 in Oculus Go Development
Hey there,

I'm trying to notify the user in our Unity GearVR app about the current Download Status.

I've build a simple java plugin and can start the native download manager in the background when the user hits the download button.

But I do not know how to render android Toast Messages in the GearVR.
In a Unity 2D project the toast messages appear, but not in the GearVR project.

What is the best way to show android notifications in unity for VR?
Do I have to call the JavaClass functions on a specific thread, like the VR Thread? Because I try this at the moment:
activityContext.Call("runOnUiThread", new AndroidJavaRunnable(() => {
                        toastExample.Call("showMessage", "This is a Toast message");

But no message appears.

Unfortunately I find nothing about Unity and Android Notifcations or Download Managers for VR...
Doesn't have the OVR Unity plugin support for something like that because I find lot of android java functions in some of the SDK files but I do not know how to call them from unity...

Is there anyone who can help with this?



  • kilogoldkilogold Posts: 32
    Brain Burst
    Do you REALLY need to use the Java api to display a notification?
    It seems like having to invoke such lower-level implementation is more trouble than it is worth, considering you can slap a uGUI label in your game to display the status of your download method/coroutine.
    For example (pseudo-code):
     var scene: String;
     var path: String;
     var download: WWW;    
     function Start () 
             download = WWW.LoadFromCacheOrDownload (path);
             yield download;
             // Handle error
             if (download.error != null)
             var bundle = download.assetBundle;           
     function Update () 

    Why go through the low level trouble for such a menial task?
  • I ran into the same problem with toasts as did the OP; they work in a regular android build, but not in VR mode. I never dug much deeper than that (as its easy enough to replicate the behavior from within Unity, as kilogold suggests), but I'd be curious to know if anyone has a solution, or at the very least an explanation of what the underlying issue is.
  • infinite360vrinfinite360vr Posts: 25
    Brain Burst
    Sonar-360 said:
    I've build a simple java plugin and can start the native download manager in the background when the user hits the download button.
    How did you implement the plugin. I am trying to do the same. Any pointers?
  • infinite360vrinfinite360vr Posts: 25
    Brain Burst
    Thanks a lot @gconvergen :)
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