Azure Spatial Anchors Android NDK lib fails to load when minify enabled

Question

Hello, I noticed the Android app was crashing when building in release mode for production.
Apparently Android NDK lib failed to load when minify is enabled (default for release).
To reproduce change "minifyEnabled false" to "minifyEnabled true" or just remove it in Android/NDK/app/build.gradle
https://github.com/Azure/azure-spatial-anchors-samples/blob/master/Android/NDK/app/build.gradle
I don't know enough about that minify option to say whether it's a bug or not. But it did take a lot of time to figure out just before the release.
As a result I had to disable minify for entire app which is not ideal.

Stack trace
2022-07-20 13:50:39.872 4221-4221/? E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.microsoft.samplenativeandroid, PID: 4221
java.lang.UnsatisfiedLinkError: JNI_ERR returned from JNI_OnLoad in "/data/app/~~CxvJgphZ1hj94zORN567XA==/com.microsoft.samplenativeandroid-_PyNcM0eTlb3amOcba7qPA==/base.apk!/lib/arm64-v8a/libazurespatialanchorsapplication.so"
at java.lang.Runtime.loadLibrary0(Runtime.java:1077)
at java.lang.Runtime.loadLibrary0(Runtime.java:998)
at java.lang.System.loadLibrary(System.java:1656)
at com.microsoft.samplenativeandroid.JniInterface.<clinit>(Unknown Source:2)
at com.microsoft.samplenativeandroid.JniInterface.onCreate(Native Method)
at com.microsoft.samplenativeandroid.MainActivity.onCreate(Unknown Source:19)
...

Answer 1

@Sergii Romanov - Can you add the following to the proguard-rules.pro

-keep class com.microsoft.spatialservices.internal.AzureSpatialAnchorsCloudClientHelpers {  
 *;  
}  
-keep class com.microsoft.mixedreality.**  
{  
*;  
}  
-keep class com.xbox.httpclient.**  
{  
*;  
}