如何在Xamarin窗体中使用构造函数注入

public interface ISomeService
{
    void DoSomething();
}

public class SomeService : ISomeService
{
    public void DoSomething()
    {
        // 实现具体的逻辑
    }
}

public partial class MainPage : ContentPage
{
    private readonly ISomeService _someService;

    public MainPage(ISomeService someService)
    {
        InitializeComponent();
        _someService = someService;
    }
}

public App()
{
    InitializeComponent();

    var builder = new ContainerBuilder();
    builder.RegisterType<SomeService>().As<ISomeService>();

    MainPage = new MainPage(builder.Resolve<ISomeService>());
}