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#Xamarin.Forms Basics This Repository aims to cover most of Xamarin.Forms basic features and some tips that will help you avoid some common problems

###Navigation

1. Hierarchal Navigation

Pushing the Next Page

Navigation.PushAsync(**YOURPAGECLASS**);

Popping back to previous page

Navigation.PopAsync(**YourPAGeClass**);

######Basic Custom Renderer Layout (Ex. Creating a Custom Entry for the iOS platform)

using Xamarin.Forms.Platform.iOS;

[assembly: ExportRenderer (typeof(MyEntry), typeof(MyEntryRenderer))]
namespace CustomRenderer.iOS
{
    public class MyEntryRenderer : EntryRenderer
    {
        protected override void OnElementChanged (ElementChangedEventArgs<Entry> e)
        {
            base.OnElementChanged (e);

            if (Control != null) {
                // do whatever you want to the UITextField here!
                Control.BackgroundColor = UIColor.FromRGB (204, 153, 255);
                Control.BorderStyle = UITextBorderStyle.Line;
            }
        }
    }
}

This Custom Renderer renders an entry with a custom background color in iOS.

######Important Properties of a Custom renderer

1. Control - references native control (this is what you customize)
2. Element - references Xamarin.Forms control
3. Here you can access almost any native library from every platform
4. [assembly: ExportRenderer (typeof(MyEntry), typeof(MyEntryRenderer))] - this line is important for the assembly to pick up this renderer at runtime