How to construct custom views in xamarin

Question

Is there any tutorial which will enable me to design custom views in xamarin?I want to build pinch zoom functionality for my android app using xamarin.

I have tried

Answer 1

Here is the skeleton of how to create a custom view in xamarin.android

http://xandroid4net.blogspot.com/2014/09/custom-view.html

Then take Emmanuel Touzery answer and add it to the skeleton

android pinch zoom