Example of Material Drawer with CustomView.

TestCustomDrawerViewActivity

namespace Sample
{
  using Android.App;
  using Android.OS;
  using Android.Widget;
  using Mikepenz.MaterialDrawer;
  using Android.Support.V7.App;

  [Activity(MainLauncher = true, Label = "TestCustomDrawerViewActivity", Theme = "@style/MaterialDrawerTheme.Light.DarkToolbar.TranslucentStatus")]			
  public class TestCustomDrawerViewActivity : AppCompatActivity
  {
    protected override void OnCreate(Bundle savedInstanceState)
    {
      base.OnCreate(savedInstanceState);

      SetContentView(Resource.Layout.activity_sample_dark_toolbar);

      var toolbar = this.FindViewById<Android.Support.V7.Widget.Toolbar>(Resource.Id.toolbar);
      this.SetSupportActionBar(toolbar);

      var layout = new LinearLayout(this);
      layout.Orientation = Orientation.Vertical;

      var image = new ImageView(this);
      image.SetScaleType(ImageView.ScaleType.CenterInside);
      image.SetImageResource(Resource.Drawable.header);

      var textView = new TextView(this);
      textView.Text = "Custom Text";
      textView.Gravity = Android.Views.GravityFlags.CenterHorizontal;

      layout.AddView(image);
      layout.AddView(textView);

      var result = new DrawerBuilder()
        .WithActivity(this)
        .WithToolbar(toolbar)
        .WithCustomView(layout)
        .WithSavedInstance(savedInstanceState)
        .Build();
    }
  }
}