Navigation between shared code project and cross platform application - xamarin

I am working on a cross-platform application, I have already code for my universal windows platform application in the universal windows platform project and rest of the development I want to perform in the shared code. The case is I want to start my application(Solution) from the universal windows platform project and then on some button click, it will navigate to shared code project of the solution. So is there any way to navigate from the universal windows platform, project to the shared code project in the same solution???

You can use MessagingCenter to trigger shared code when clicking the native button. You need to subscribe a message on shared project and send it after clicking the button on native project. You can find details in here:
Messaging Center Docs

Related

Xamarin or Xamarin.Forms for Android and classic Windows?

Is there a way to create a Xamarin or Xamarin.Forms solution that targets Android and classic Windows to produce a Windows 7,8,8.1,10 executable (exe)?
I am not interested in UWP.
Xamarin.Forms will support WPF in the future so you will be able to deploy an EXE file to those platforms. Read more about it here on the blog.
Also, you can always share the business logic, data and other layers with any other .NET application so having an Android app, Windows app and a core project that doesn't depend on Xamarin is perfectly fine.
You can already take a look at the WPF branch of the Xamarin.Forms project on GitHub.

Is it possible to develop a desktop application, which will be supported in both Mac and Windows, using Xamarin in Visual Studio?

Our team would like to develop an application in Visual studio and Xamarin. The app needs to be supported in both Mac and Windows. We prefer Xamarin because the back end code can be shared. If possible, how to build and publish it so that it can be only installed in the machines. We are not planning to submit this app to the corresponding app stores.
You can write and Windows Application with C# using WinForms, WPF, WinRT (Windows Store apps).
Also you can write Mac application with C# using Xamarin.Mac.
To share the code between Windows App and Mac App, you just need to split your code into shareable Business Logic (part) and specific UI part.
To share the code, just use PCL libraries.
Yes.
The core business logic can be written in shared code usable on both platforms.
You have a couple of choices of how to develop the UI. You can use native or Xamarin Forms.
If you use native then I would suggest using the MVVM pattern with a framework like MvvmCross. You can then write the bulk of your app in shared code and just write the UI in platform-specific code, with the windows UI written as a standard windows WPF or UWP app, and the Mac app written using Xamarin.Mac using the native Mac API.
If you want to use Forms then you may have to compile the binaries yourself to get Mac support as it won't be available till roughly May 2017, but you could get started building a Forms app for UWP/Windows now and add the Mac project once it is available.

Can we use xamarin.android code in xamarin.ios?

I have an app developed in xamarin.android. Now I want to develop same app in xamarin.ios. So can I use any code (classes, methods written by me) that is written for xamarin.android app in xamarin.ios app.
Yes. Code that is not platform dependent (domain, models, services, data, etc) can be placed into a PCL or shared project and used by both apps. Code that is platform dependent (UI, other device interaction) will need to be written for each platform.

Xamarin: Can I do in a cross platform project the "Android part" and do IOS when the rest is finish?

I have a project in Android Studio (on a pc), and as far as I know now Microsoft owns Xamarin and its free once you have a Visual Studio license, then you can develop apps using C#(Already know that I have to port the JAVA code) and then compile in a MAC the IOS app.
My 2 concerns are:
When you can't compile, will the IDE show the IOS related errors?
There is a clear implementation of "cross platform code" vs "specific code"?
How Xamarin manage it?
In addition, our plan is to finish the app for Android which is our primary target and then manage the IOS, besides the other questions, what I need to know is if that is possible.
Yes, the VS IDE will show you build errors from the iOS build server.
Yes, you can build an Android app using Xamarin and later extend it to build an iOS app also. This is easiest if you use Xamarin Forms, but it also possible with native Android/iOS UI, but will be much more dependent on how you architect your applications.

Xamarin Windows Phone Store Package

I' am in a bit of truble at the moment.
I try to build my Xamarin Windows Store App for publishing, but the Create App Packages Wizard, wont open I tried many solutions from the web, like unloading and reloading the project, or making a new project. But the wizard does not open with my solution i treid a normal Windows Phone app(no Silverlight), that worked but i could not Port my xamarin project to a standard Windows Phone App.
Has someone encountered a similar issue with Xamarin and Windows Phone,
or can anyone help to get my app into the Appstore?
Thanks.
I would have asked in the Xamarin Forum, but I cant reach them siche this morning.
And sorry for the engrish.
To submit package to the windows phone store you'll need to build your project (for ARM in Release mode to avoid warnings). Then on developer site when there is button to upload package you have to attach *.xap file from your project's bin\release folder (or bin folder you have specified). Then you can go through the next windows phone store app submitting steps.

Resources