Author Archives: Jesse Liberty

About Jesse Liberty

Jesse Liberty is an independent consultant and programmer with three decades of experience writing and delivering software projects. He is the author of 2 dozen books and multiple Pluralsight courses, and has been a Senior Technical Evangelist for Microsoft, a Distinguished Software Engineer for AT&T, a VP for Information Services for Citibank and a Software Architect for PBS. He is a Xamarin Certified Mobile Developer and a Xamarin MVP, Microsoft MVP and Telerik MVP.

52 Weeks of Xamarin – Week 8: Testing the View Model

Until now, our tests have focused on the model, Projects.  The point of MVVM, however, is to enable sufficient separation of concerns to allow testing of the program’s logic in the ViewModel. Today, we turn to ViewModel tests, using these tests … Continue reading

Posted in Testing, Xamarin | 1 Comment

52 Weeks of Xamarin: Week 7 – First Unit Tests

In the previous posting, I set up the ProjectTracker solution, including the xUnit testing folders.   We talk a lot about test-driven design, but the truth is that we (most of us?) start with an overall architecture in mind prior … Continue reading

Posted in Xamarin | 1 Comment

52 Weeks of Xamarin: Week 6 – Starting xUnit Testing

Last week we decided to start with test-first development using XUnit.  To get underway, let’s create a  new Xamarin.Forms application called BlogProjectTracker. Once the projects are created we’ll return to the solution and add a new .NET project of type Portable Library … Continue reading

Posted in Essentials, Xamarin | 1 Comment

Newest Pluralsight Course: Beginning Mobile Development with Xamarin

Incredibly excited to announce my latest Pluralsight Course:  Beginning Mobile Development with Xamarin. In this course, you will build a real-world application three times, using three different Xamarin platforms, giving you tremendous insight into how Xamarin programs are created and … Continue reading

Posted in Xamarin | Leave a comment

What Languages Have You Learned?

I started programming in 1971, but didn’t much like it and didn’t start professional programming until 1985.  I’d be very interested in when you started, and what languages you used since then (languages you used to write something meaningful)  Here is … Continue reading

Posted in Essentials | Leave a comment

52 Weeks of Xamarin: Week 5 – Diving in the deep end

For the past four weeks, we’ve been reviewing the fundamentals of Xamarin.  Let’s stop for a bit and talk about how we really code, and how we should. In my Pluralsight courses, I take you through each skill, step by … Continue reading

Posted in Essentials | 3 Comments

52 Weeks of Xamarin: Week 4 – Creating the Model and Saving

This week we’ll save the Tasks in memory, in coming weeks we’ll review databinding and we’ll review the tasks in a bound list. NB: We’re moving very quickly through the preliminaries, so please do use the comments to ask questions … Continue reading

Posted in Xamarin | 1 Comment

FalafelCon with TWO Free Workshops??

Zero hype.  Free means free. Sign up for FalafelCon (Monterey, September 14-17)  and you not only get full admission to all of FalafelCon and all of TechIntersection, but under this special deal you get the IOT workshop by Doug Seven ( all … Continue reading

Posted in Essentials | Leave a comment

Yet Another Podcast #141: Greg Shackles on Xamarin

This week, Greg Shackles: mobile expert and Xamarin MVP; host of Gone Mobile Podcast. NYC Mobile .NET Developers Gone Mobile Olo Xamarin Evolve 2014: Using Continuous Integration with Xamarin Apps MvvmCross fastlane xUnit   Listen | Yet Another Podcast  

Posted in Essentials, Xamarin | Tagged | 2 Comments

52 Weeks of Xamarin: Week 3- Events in Xamarin.Forms

In this, week 3 of 52 Weeks of Xamarin, we’re going to pick up where we left off last week, and add event handling to our buttons There is much to do to make this a working program, and starting … Continue reading

Posted in Essentials | 2 Comments

Yet Another Podcast – Show 140: J. Tower

This week we have J Tower,  Telerik Expert, Community Organizer, Itinerant Consultant J’s web site Community Organizing 48 State Project   Listen | Yet Another Podcast

Posted in Essentials | Tagged | Leave a comment

52 Weeks of Xamarin: Week 2 – Starting the project

 This is the second week of 52 weeks of Xamarin.  To make this all more interesting and practical, we’ll start on building a quasi-real-world application; the iconic To Do List.   The application shown in this and future columns is … Continue reading

Posted in Essentials | 1 Comment