Porting Win RT app using Crosslight for backend code to iOS/Android - is Xamarin.Forms viable?

jan.eeckhout@globis.be — Mon, 07 Mar 2016 21:38:34 GMT

At our company, we developed a WinRT app (Windows 8.1) that uses our main application as a backend. This code is written in C#, using Crosslight to access our internal SQLite database (for offline usage), for IoC and as a base for the ViewModels (and thus supporting navigation between the different ViewModels).

One of our customers is asking for a version for iPad and/or Android devices. We are willing to develop a port of this app, but are wondering if we could do this with the use of Xamarin.Forms, as we would like to have a minimum of code differences between the different platforms.

Can we re-use the currently existing backend code (IoC, Database layer, ...) and the viewmodels using Crosslight, and have the frontend built with Xamarin.Forms?

Using Sqlite in WinRT App

Jeankie — Tue, 02 Sep 2014 10:13:01 GMT

Hi all,

I've recently started a trial of crosslight mobile studio for a proof of concept.

What i'm trying to do is creating a simple Windows 8.1 app with local database access using SQLite. But i'm having some trouble with the SQLite part :)

I have 2 projects, "App.Core" and "App.WinRT".

In the core project I've made a reference with the following assemblies:

.NET
Intersoft.AppFramework
Intersoft.Crosslight
Intersoft.Crosslight.Data
Intersoft.Crosslight.Data.ComponentModel
Intersoft.Crosslight.Data.SQLite
Several Nuget packages to get this project to build (Some Microsoft Bcl packages.

In the WinRT project I've made references to same intersoft assemblies. I also made a reference to the Intersoft.Crosslight.Data.SQLite.WinRT assembly (which is the platform specific assembly) and an SDK extension package called SQLite for Windows Runtime (Windows 8.1)

In the AppService class constructor in the Core project I've added some Appsettings and a SQLiteService.

AppSettings settings = new AppSettings();

settings.RequiresInternetConnection = false;

settings.LocalDatabaseName = "database.db3";

settings.LocalDatabaseLocation = LocalFolderKind.Data;

settings.DataSynchronizationMode = DataSynchronizationMode.LoadPartial;

this.GetService<ITypeResolverService>().Register(typeof(CrosslightAppAppService).Assembly);

//Container.Current.RegisterInstance(settings);

Container.Current.Register<IEntityContainer>("Default", c => new EntityContainer()).WithLifetimeManager(new ContainerLifetime());

ServiceProvider.AddService<ISQLiteService, SQLiteService>();

In the OnStart method i've added the following lines.

ISQLiteService service = ServiceProvider.GetService<ISQLiteService>();

ISQLiteAsyncConnection connection = service.OpenConnection("database.db3");

These lines throws the following error:

System.Exception: The SQLite platform service is not initialized. Please make sure the Intersoft.Crosslight.Data.SQLite.[platform] is referenced in your project.

at Intersoft.AppFramework.Services.SQLiteService.OpenConnection(String dbName)

at CrosslightApp2.Infrastructure.CrosslightAppAppService.OnStart(StartParameter parameter)

at Intersoft.Crosslight.ApplicationServiceBase.Intersoft.Crosslight.IApplicationService.OnStart(StartParameter parameter)

at Intersoft.Crosslight.WinRT.Application.

I've added a sample solution to this thread. Can someone please tell me what to do in order to create a local SQLite database and access it from the windows RT app.

Thanks!

Kind regards,

Jan

Intersoft Community - WinRT

Porting Win RT app using Crosslight for backend code to iOS/Android - is Xamarin.Forms viable?

Using Sqlite in WinRT App