Google Wallet / Android Pay integration in Xamarin Forms - xamarin

I have Xamarin project targeting both Android and iOS platforms using Xamarin.Forms. I searched but I can't find an answer or any information about that.
Is there any way I can integrate Google Wallet / Android Pay in my project and what are my options.

can't you use Xamarin.InAppBillin
check this enter link description here

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Xamarin.Android Adyen Integration & Bindings Library .aar

Hello colleagues developers,
I'm currently developing a Xamarin Form app that requires the integration of a Payment Service Provider. My company requires that I use Adyen as the PSP.
Adyen itself doesn't provide any information on Xamarin integration. Information exist for Android and IOS but can't find anything for Xamarin forms / Xamarin.Android.
I've created a Bindings Library (android).
I've added the.aar file provided by Adyen into it.
Then I built it with the LibraryProjectZip property but after adding the reference to my Xamarin.android project, I can't use any methods that should be in it...
I've tried this process with another .aar and everything went fine...
Does any of you have already integrated Adyen in a Xamarin form / Xamarin.android app ?
Thanks in advance,
Noste

How to install Google Play Service in Xamarin Android Player

How to install Google Play Service in Xamarin Android Player. I have found the link https://university.xamarin.com/resources/how-to-install-google-play-on-android-emulator which does not work in windows. It does not allow me to drop the Google Play Services .zip file from www.teamandroid.com/gapps/ .Any suggestion or link please.
Thanks!
I would recommend to use the android emulator that ships with the current version of Android Studio (by now 2.1). Google did a good job and a major overhaul with that version. It now is as fast as Genymotion or the Xamarin Android Player. Plus it as Google services support build in.

GCM to FCM for Xamarin

Xamarin has the predefined support to GCM (Google Cloud Messaging) which was explained in https://developer.xamarin.com/guides/cross-platform/application_fundamentals/notifications/android/remote_notifications_in_android/
As currently Google migrated from GCM to FCM (Firebase Cloud Messaging) does it work with Xamarin with same instruction or there any other Docs for integrating FCM with Xamarin?
Does all features provided in Firebase can be used in Xamarin App?
does it work with Xamarin with same instruction?
No, it doesn't. But you can still work with GCM since Google hasn't announced that GCM support will stop just now. They just posted that FCM is the newest version of GCM.
there any other Docs for integrating FCM with Xamarin?
Not just yet, Xamarin doesn't have a guide about how to integrate FCM with your Xamarin.Android app.
Does all features provided in Firebase can be used in Xamarin App?
Yes, they can be used with Xamarin. But at this moment we have to wait until Xamarin provides us with official bindings(dlls) for FCM java libraries(jars) and probably they will post something in their blog about how to integrate this with our apps.
At this point, the best thing you can do while developing with Xamarin is use GCM. The other thing you can do, is create your own bindings with FCM java libraries and use Google's tutorial for android (in java)
While the last option will probably work, when the official Xamarin bindings come you will have to change a lot of code in order to make it work with upcoming updates from Google and Xamarin.
EDIT: as pointed out by #SørenBoisen Xamarin has started to rollout official(pre-release) bindings via nugget: https://www.nuget.org/packages/Xamarin.Firebase.Common/
More info at: Support for Google Firebase — Xamarin Forums
The Firebase bindings are now available for Xamarin Android as a nuget package here:

How can we Integrate Xamarin.Forms Application/Component with Xamarin native Application?

I have developed an app/component using Xamarin.Forms and as per the requirement I need to integrate that component with another app which is developed on Xamarin Native in Android as well as iOS.
Kindly help me with the suggestions or references
I've seen something like that on a sample called Native2Forms.
What it does, at least in Android, is to use a separete activity to integrate the Xamarin Forms PCL (FormsActivity).

Multi-platform database with parse.com

When starting a parse app, which SDK do you choose so that an app/website could share the same database between platforms (i.e. share the same usernames and passwords between a website, IOS app, and android app)?
The database can be viewed by any platform. You choose the SDK based on which platform you are developing for. If you're developing for iOS, then you'd use the iOS SDK. If you were making an Android app, then you'd use the Android SDK. Both of these SDKs can point to the same Parse database. You just need to set the correct keys.

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