Problems with binding Google's TapAndPay SDK on .NET MAUI

Question

Has anyone had any luck integrating Google's TapAndPay SDK with .NET MAUI? I'm looking to support in-app card provisioning from my MAUI app to Google Pay

Following the standard project setup does not map the methods correctly. I've tried mapping the methods needed via Transforms/Metadata.xml with no luck.

The library provided by Google appears to be obfuscated so disassembling to inspect the internals is difficult.

I'm developing on a Mac -- pasted my env below

Architecture: Arm64

Microsoft.macOS.Sdk 13.1.1007; git-rev-head:8afca776a0a96613dfb7200e0917bb57f9ed5583; git-branch:release/7.0.1xx-xcode14.2

Roslyn (Language Service)

4.6.0-3.23180.6+99e956e42697a6dd886d1e12478ea2b27cceacfa

NuGet

Version: 6.4.0.117

.NET SDK (Arm64)

SDK: /usr/local/share/dotnet/sdk/8.0.204/Sdks

SDK Versions:

8.0.204

8.0.100

7.0.315

7.0.314

7.0.313

6.0.421

6.0.420

6.0.419

MSBuild SDKs: /Applications/Visual Studio.app/Contents/MonoBundle/MSBuild/Current/bin/Sdks

.NET Runtime (Arm64)

Runtime: /usr/local/share/dotnet/dotnet

Runtime Versions:

9.0.0-preview.6.24327.7

8.0.4

8.0.0

7.0.18

7.0.17

7.0.16

6.0.29

6.0.28

6.0.27

Xamarin.Profiler

Version: 1.8.0.49

Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler

Updater

Version: 11

Xamarin.Android

Version: 13.2.2.0 (Visual Studio Community)

Commit: xamarin-android/d17-5/45b0e14

Android SDK: /Users/jaysidri/Documents/Dev/toolchains/android-sdk

Supported Android versions:

	12.1 (API level 32)

	10.0 (API level 29)

	13.0 (API level 33)

SDK Command-line Tools Version: 7.0

SDK Platform Tools Version: 35.0.1

SDK Build Tools Version: 34.0.0

Build Information:

Mono: d9a6e87

Java.Interop: xamarin/java.interop/d17-5@149d70fe

SQLite: xamarin/sqlite/3.40.1@68c69d8

Xamarin.Android Tools: xamarin/xamarin-android-tools/d17-5@ca1552d

Microsoft Build of OpenJDK

Java SDK: /Library/Java/JavaVirtualMachines/microsoft-11.jdk

11.0.16.1

Android Designer EPL code available here:

https://github.com/xamarin/AndroidDesigner.EPL

Eclipse Temurin JDK

Java SDK: /Library/Java/JavaVirtualMachines/temurin-8.jdk

1.8.0.302

Android Designer EPL code available here:

https://github.com/xamarin/AndroidDesigner.EPL

Android SDK Manager

Version: 17.6.0.50

Hash: a715dca

Branch: HEAD

Build date: 2024-04-05 09:48:29 UTC

Android Device Manager

Version: 0.0.0.1309

Hash: 06e3e77

Branch: HEAD

Build date: 2024-04-05 09:48:29 UTC

Xamarin Designer

Version: 17.6.3.9

Hash: 2648399ae8

Branch: remotes/origin/d17-6

Build date: 2024-04-05 09:48:23 UTC

Apple Developer Tools

Xcode: 15.2 22503

Build: 15C500b

Xamarin.Mac

Not Installed

Xamarin.iOS

Version: 16.4.0.23 Visual Studio Community

Hash: 9defd91b3

Branch: xcode14.3

Build date: 2023-10-23 16:15:00-0400

Build Information

Release ID: 1706110400

Git revision: 5d3d895c30788d39f3fb9931002e2961d22b60fd

Build date: 2024-04-05 09:46:37+00

Build branch: release-17.6

Build lane: release-17.6

Operating System

Mac OS X 14.4.1

Darwin 23.4.0 Darwin Kernel Version 23.4.0

Fri Mar 15 00:12:49 PDT 2024

root:xnu-10063.101.17~1/RELEASE_ARM64_T6020 arm64