InsertIt is a simple Dependency Injection library for Windows Phone.

How to install InsertIt?
InsertIt is a nuget package (https://www.nuget.org/packages/InsertIt/), so You can simply type following command in a Package Manager Console:

Install-Package InsertIt

What You can do? Register simple Dependency:

_container = new Container(x =>
        {
            x.Record<IInterface>().As<ClassToResolve>();
        });

Register dependency with dependency inside:

_container = new Container(x =>
        {
            x.Record<Dependency>().As<Dependency>();
            x.Record<IInterface>().As<ClassWithDependency>();
        });

Register dependency with value for constructor arguments:

_container = new Container(x =>
        {
            x.Record<IInterface>().As<ClassWithCtorWithArgs>().Ctor("test");
        });

It is also possible to register dependency with ctor value based on reflection (ctor arg name) instead of ctor arg type as above.

_container = new Container(x =>
        {
            x.Record<IInterface>().As<ClassWithCtorWithArgs>().Ctor("ctorArgName", new Test());
        });

How to get resolved dependecy?

var resolve = _container.Resolve<IInterface>();

How to make it works in Your windows phone app? Create static class:

public static class Registry
{
    private static Container _container;

    public static void Initialize()
    {
        _container = new Container(_ =>
        {
            _.Record<IInterface>().As<ClassToResolve>();
        });
    }

    public static TItem Get<TItem>()
    {
        return _container.Resolve<TItem>();
    }
}

And invoke Initialize method in OnLaunched method in App.xaml.cs

protected override void OnLaunched(LaunchActivatedEventArgs e)
{
    ...
    Registry.Initialize();
    ...
}