Bind "androidx.wear.watchface.watchface"

[pierre-galaup]

Description

Hello,

I open a new issue to ask for the binding of WatchFace packages for WearOS.
Packages are available here: https://maven.google.com/web/index.html?q=watchface#androidx.wear.watchface

Following the discussion on this issue: #671 (comment)
There was an old groupId (androidx.wear) where the WatchFace packages were.
Now it is available, in stable version, on a new groupId (androidx.watch.watchface).

---

I tried myself to do the binding but without success.
I share on my github my test, you can find it here if needed: https://github.com/pierre-galaup/xamarin-androidx-watchface-binding

The binding compiles, but when we select the WatchFace, I have an error in the constructor of the class "CanvasRenderer2":

android.runtime.JavaProxyThrowable: System.ArgumentException: Cannot bind to the target method because its signature is not compatible with that of the delegate type.
   at System.Delegate.CreateDelegate(Type type, Type target, String method, Boolean ignoreCase, Boolean throwOnBindFailure)
   at System.Delegate.CreateDelegate(Type type, Type target, String method)
   at Android.Runtime.AndroidTypeManager.RegisterNativeMembers(JniType nativeClass, Type type, ReadOnlySpan`1 methods)
--- End of stack trace from previous location ---
   at Java.Interop.JniEnvironment.Object.AllocObject(JniObjectReference type)
   at Java.Interop.JniType.AllocObject()
   at Java.Interop.JniPeerMembers.JniInstanceMethods.StartCreateInstance(String constructorSignature, Type declaringType, JniArgumentValue* parameters)
   at Androidx.Wear.Watchface.Renderer.CanvasRenderer2..ctor(ISurfaceHolder surfaceHolder, CurrentUserStyleRepository currentUserStyleRepository, WatchState watchState, Int32 canvasType, Int64 interactiveDrawModeUpdateDelayMillis, Boolean clearWithBackgroundTintBeforeRenderingHighlightLayer)
   at Sample.WearOS.CustomCanvasRenderer..ctor(ISurfaceHolder surfaceHolder, CurrentUserStyleRepository currentUserStyleRepository, WatchState watchState, Int32 canvasType)
   at Sample.WearOS.MyWatchFaceService.CreateWatchFace(ISurfaceHolder surfaceHolder, WatchState watchState, ComplicationSlotsManager complicationSlotsManager, CurrentUserStyleRepository currentUserStyleRepository, IContinuation p4)
   at Androidx.Wear.Watchface.WatchFaceService.n_CreateWatchFace_Landroid_view_SurfaceHolder_Landroidx_wear_watchface_WatchState_Landroidx_wear_watchface_ComplicationSlotsManager_Landroidx_wear_watchface_style_CurrentUserStyleRepository_Lkotlin_coroutines_Continuation_(IntPtr jnienv, IntPtr native__this, IntPtr native_surfaceHolder, IntPtr native_watchState, IntPtr native_complicationSlotsManager, IntPtr native_currentUserStyleRepository, IntPtr native_p4)
   at Android.Runtime.DynamicMethodNameCounter.1(IntPtr , IntPtr , IntPtr , IntPtr , IntPtr , IntPtr , IntPtr )
	at crc645526c0bb8eafc12f.MyWatchFaceService.n_createWatchFace(Native Method)
	at crc645526c0bb8eafc12f.MyWatchFaceService.createWatchFace(MyWatchFaceService.java:30)
	at androidx.wear.watchface.WatchFaceService$EngineWrapper$createWatchFaceInternal$1.invokeSuspend(WatchFaceService.kt:1918)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:106)
	at android.os.Handler.handleCallback(Handler.java:938)
	at android.os.Handler.dispatchMessage(Handler.java:99)
	at android.os.Looper.loop(Looper.java:246)
	at android.os.HandlerThread.run(HandlerThread.java:67)
	Suppressed: kotlinx.coroutines.DiagnosticCoroutineContextException: [StandaloneCoroutine{Cancelling}@81dab8d, Handler (android.os.Handler) {af53142}.immediate]

Thanks a lot!

[pierre-galaup]

Hello @moljac,

I see that the Pull Request is in progress, that's great! Thank you.

I just have a question, is the binding of version 1.0.0 normal? I saw that the last stable version is 1.1.1. (https://maven.google.com/web/index.html?q=watchface#androidx.wear.watchface:watchface:1.1.1)

Or it will have to be done afterwards? (if I have to open another issue after the merge, don't hesitate)

Thanks again and have a nice day/evening!
Pierre

[moljac]

@pierre-galaup

Thanks for the feedback.

Short answers.

Hello @moljac,

I see that the Pull Request is in progress, that's great! Thank you.

You're welcome.

I just have a question, is the binding of version 1.0.0 normal?

Bindings are "problematic" 1st time when done. Subsequent (iterative) updates are usually no-brainer, so updates will follow within few weeks. The reason I bind reasonably "older" versions is that sometimes package can be pinned/fixed/locked as a dependency od some other package i.e. some package could have [1.0.0] version pinned and this cannot predicted.

I could have bind 1.0.1 instead 1.0.0 (I might bump it now), but due to the plan to jump to 1.1.1 (not 1.1.0) within week or two I was OK with 1.0.0.

I hope this answers your question.

I saw that the last stable version is 1.1.1. (https://maven.google.com/web/index.html?q=watchface#androidx.wear.watchface:watchface:1.1.1)

Or it will have to be done afterwards? (if I have to open another issue after the merge, don't hesitate)

No need to open issue. Update will follow soon.

Thanks again and have a nice day/evening! Pierre

You re welcome.
cheers