Camera Kit Unity Sample - Crash on Android version 11 and 14

Pico Alta

Hello there,

I am very happy to see that the camera-kit-unity-sample repository was released, because it takes a lot of guesswork out of making a Unity app with Camera kit.

I managed to get the Android code working on a Galaxy A52 (Android version 13), but on the same Android studio project the same build crashes on my Pixel Pro 8 (Android version 14) and my old OnePlus 6 (Android version 11).

I will post the crash message below this post

I am using the following setup:

Unity version 2022.1.23f1
Android Studio Flamingo 2022.1.1 Patch 2
When opening the project, I selected use embedded Android SDK (so the Unity's Android SDK version is targeted)

Steps:
In Unity:
I followed the steps in the readme.

In Android studio:
Performed steps in readme, and then

• Clicked file -> sync project with gradle files
• Clicked Build -> Clean project
• Clicked Build -> Rebuild project
• Attach Galaxy A52, select device and press play, notice that project runs fine
• Attach Oneplus 6, select device and press play, notice that project crashes on launch.

Crash output:

FATAL EXCEPTION: main
Process: com.snap.camerakitsamples.unity.android, PID: 14679
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.snap.camerakitsamples.unity.android/com.snap.camerakitsamples.unity.android.MainUnityActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3616)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3780)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2251)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:233)
at android.app.ActivityThread.main(ActivityThread.java:8068)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)
Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String android.os.Bundle.getString(java.lang.String)' on a null object reference
at com.snap.camerakitsamples.unity.android.MainUnityActivity.onCreate(MainUnityActivity.kt:55)
at android.app.Activity.performCreate(Activity.java:8006)
at android.app.Activity.performCreate(Activity.java:7990)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1329)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3589)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3780)
at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85)
at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2251)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:233)
at android.app.ActivityThread.main(ActivityThread.java:8068)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978)

Pico Alta

This works for me

In MainUnityActivity, change the following before camkitApiToken:

val context = applicationContext
val ai = context!!.packageManager.getApplicationInfo( context.packageName, PackageManager.GET_META_DATA)
val metadata = ai.metaData!!
val camkitApiToken = metadata.getString("com.snap.camerakit.api.token")

stevenxu

@Pico Alta Glad to hear this Unity sample is useful for you! Confirming I've created a ticket for our eng to look into this. Hang tight!