Android toolbar icon not showing up

Android toolbar icon not visible in root Navigation Page. I am able to display the toolbar icons in the remaining Pages(Called as Push-model) which comes after the root view.

            ToolbarItem logout = new ToolbarItem("Sign Out", "logout.png", async () =>
            {
               await  this.Navigation.PushModalAsync(new UserLoginView());

            }, 0, 0);

            ToolbarItems.Add(logout);

My Toolbar is left totally blank. Even the Page Title is not being displayed for the first time.
In iOS i am getting the Toolbar icon as required
Am i missing something ?