IoCNew.cs

using System;
using Microsoft.Extensions.DependencyInjection;

namespace ViMobile.Utilities.DependencyInjection
{
    public static class IoCNew
    {
        private static readonly ServiceCollection ServiceCollection;

        static IoCNew()
        {
            ServiceCollection = new ServiceCollection();
        }

        public static ServiceProvider Container { get; }

        public static T Get<T>()
        {
            var container = ServiceCollection.BuildServiceProvider();
            return container.GetService<T>();
        }

        public static void Register<TInterface, TImplementation>(bool asSingleton = true)
            where TImplementation : class, TInterface where TInterface : class
        {
            if (asSingleton)
            {
                ServiceCollection.AddSingleton<TInterface, TImplementation>();
            }
            else
            {
                ServiceCollection.AddScoped<TInterface, TImplementation>();
            }
        }

        public static void Register<TImplementation>(bool asSingleton = true) where TImplementation : class
        {
            if (asSingleton)
            {
                ServiceCollection.AddSingleton<TImplementation>();
            }
            else
            {
                ServiceCollection.AddScoped<TImplementation>();
            }
        }

        public static void Register<TInterface>(TInterface instance) where TInterface : class
        {
            ServiceCollection.AddSingleton(instance);
        }

        public static void RegisterOpenType(Type interfaceType, Type implementationType)
        {
            ServiceCollection.AddSingleton(interfaceType, implementationType);
        }

    }
}