ActivityBase.cs

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//-----------------------------------------------------------------------
// <copyright file="ActivityBase.cs" company="Marimer LLC">
//     Copyright (c) Marimer LLC. All rights reserved.
//     Website: https://cslanet.com
// </copyright>
// <summary>CSLA helper to be used in place of the normal Xamarin Android activity that contains a reference to a CSLA ViewModel and a BindingManager</summary>
//-----------------------------------------------------------------------
 
using Android.App;
using Android.OS;
using Csla.Axml.Binding;
using Csla.Serialization;
using Csla.Serialization.Mobile;
 
namespace Csla.Axml
{
  public abstract class ActivityBase<T, Z> : Activity where T : ViewModel<Z>
  {
    private ApplicationContext CslaApplicationContext { get; set; }
 
    protected ActivityBase(ApplicationContext applicationContext)
    {
      CslaApplicationContext = applicationContext ?? throw new System.ArgumentNullException(nameof(applicationContext));
    }
 
    protected T viewModel = null;
 
    protected BindingManager Bindings = null;
 
    protected override void OnCreate(Bundle bundle)
    {
      base.OnCreate(bundle);
      Bindings = new BindingManager(this);
    }
 
    protected byte[] SerializeModelForParameter()
    {
      return this.SerializeModelForParameter(this.viewModel.Model);
    }
 
    protected byte[] SerializeModelForParameter(object model)
    {
      return SerializationFormatterFactory.GetFormatter(CslaApplicationContext).Serialize(model);
    }
 
    protected object DeserializeFromParameter(byte[] parameter)
    {
      return SerializationFormatterFactory.GetFormatter(CslaApplicationContext).Deserialize(parameter);
    }
  }
}