No virtual method getCamera() - Xamarin.AndroidX.Camera

Question

Hi,

I need help in solving this issue.

I was using the CameraX sample from https://github.com/venetasoft/Xamarin.CameraX., and this repo is using older Xamarin.AndroidX.Camera.Core and other dependencies.

I had updated all AndroidX.Camera packages to the latest versions(1.0.2.1), and getting the below error.
I need to set the custom ISO, custom exposure and white balance.
There is no option of setting the exposure etc in the older versions of the AndroidX.Camera packages, so I endedup in upgrading the packages.

Since then, am getting the below issue and no clue to fix this exception:

[MonoDroid] java.lang.NoSuchMethodError: No virtual method getCamera()Landroidx/camera/core/Camera; in class Landroidx/camera/core/SurfaceRequest; or its super classes (declaration of 'androidx.camera.core.SurfaceRequest' appears in /data/app/~~x4sngehli4tT62zv5UDu1g==/com.companyname.camerax-tb0zodG0-w9uEdnnsbO9AA==/base.apk)
[MonoDroid] at androidx.camera.view.PreviewView.lambda$createSurfaceProvider$1$PreviewView(PreviewView.java:205)
[MonoDroid] at androidx.camera.view.-$$Lambda$PreviewView$n1PRP3s6fDboGjmt9Yty7nYrFM0.onSurfaceRequested(Unknown Source:2)
[MonoDroid] at androidx.camera.core.Preview.lambda$sendSurfaceRequestIfReady$1(Preview.java:390)
[MonoDroid] at androidx.camera.core.-$$Lambda$Preview$cQQSNpTD_vzDR540rq5dmfARJz4.run(Unknown Source:4)
[MonoDroid] at android.os.Handler.handleCallback(Handler.java:938)
[MonoDroid] at android.os.Handler.dispatchMessage(Handler.java:99)
[MonoDroid] at android.os.Looper.loop(Looper.java:246)
[MonoDroid] at android.app.ActivityThread.main(ActivityThread.java:8633)
[MonoDroid] at java.lang.reflect.Method.invoke(Native Method)
[MonoDroid] at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:602)
[MonoDroid] at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1130)

Any idea of how to solve this?

Answer 1

Hello,​

Welcome to our Microsoft Q&A platform!

I try to download this simple, then I update all AndroidX.Camera packages to the latest versions(1.0.2.1), And I run it in my android 9.0 and android 11 emulator, both of them are running normally without this exception. You can download my simple from this thread:

https://github.com/microsoft/CSSClientAppsXamarinSampleCode/tree/main/Xamarin.CameraX1

Best Regards,

Leon Lu

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