Nowadays chatbots are the most common tool to interact with some functions, like guide, suggest, act as FaQ or more complex capabilities like incorporate employees to intern apps on a certain company, so let's get into Bot Composer
If you need to implement Unit Testing for your developments and you want a clear way to do that keep reading aboud AAA pattern .
DataTemplateSelector is a class that lets you change the data template you want to use, mostly used on List Controls as CollectionView or ListView.
Do you want to embed Real Time Communication on your apps? Watch this article about that.
There's no matter about your experience with Xamarin, you must use some of this exiting tools.