Why can’t I use the “dynamic” C# keyword in Xamarin.iOS?

Occasionally I see this question pop up in various forms; usually an app developer has written some fairly clever code that relies on the dynamic keyword in C#. Their code runs swimmingly on every other platform—and it also compiles just fine for iOS. But when they run the app on a physical iPhone or iPad…

Apple Launches CareKit, a Platform for Building Healthcare Apps

Apple held its ‘Loop You In’ town hall in Cupertino today, and amid the often-inane product announcements (Apple Watch now comes with nylon bands!) was a tidbit developers may find interesting. The company is launching a new platform for building healthcare apps, called CareKit. The open-source platform, available in April,  will allow developers to take…

Creating a Secondary (bottom) iOS Toolbar in Xamarin Forms

Xamarin Forms is a really great platform for mobile app development – we have used it on several apps now and had much better results than when trying to use the native SDK’s directly. Every now and then though you run up against a roadblock with the default renderer implementations where some feature (perhaps a…

Wintellect’s Jeff Prosise Interviewed on Twit.tv!

Wintellect Co-Founder Jeff Prosise was recently a guest on the latest episode of Coding 101 on Twit.tv.  Father Robert Ballecer who calls himself the “Digital Jesuit” interviewed Jeff with Lou Maresca from Microsoft and they covered many topics starting with how Jeff got started with computer science having come from an engineering background before getting caught up…

Microsoft Details Bridges to Windows Universal Apps

The rather lackluster Day 2 keynote from Build 2015 was short on big announcements as they looked to drive home the message of the power of the Windows Universal Platform including a few more details on the bridges they are building for Web, Android, and iOS developers to move their apps to Windows. Day 2…

Microsoft Continues Push To Win Over Developers at Build 2015

Microsoft’s CEO Satya Nadella took the stage at Build 2015 today and with a little help from his Microsoft colleagues made the strongest pitch yet for why all developers should build apps for Windows 10. Build 2015 kicked off with a bang today as the three hour long keynote showcased Microsoft’s continued emphasis on empowering…

Which Mobile OS Do You Trust?

With recent revelations from the RSA Security Conference highlighting gaping security holes in iOS8 as well as pointing out that many Android apps don’t perform proper SSL validation, one has to wonder is their mobile data safe anywhere? Amit Yoran, President of the RSA kicked off their company’s annual conference with a scathing commentary on…

Responding to Orientation Changes in Xamarin Forms

Last week, I published the first in a series of articles on building cross-platform mobile apps with Visual Studio 2015 and Xamarin Forms. In it, I presented an RPN calculator app that works on Windows Phone, Android, and iOS. One subject I didn’t address in that article was how to respond to orientation changes in…

Microsoft’s Most Popular Mobile Apps Aren’t Necessarily on Windows Phone

You may have heard that Microsoft has released mobile versions of their Office apps for Android and iOS, but that’s only scratching the surface of what they’ve published.  What’s more some of their apps are more popular on Android and iOS than Windows Phone. Microsoft’s recent move to open up the Office platform to Android…

A Quick View Into Apple WatchKit

Get a tour of the basics of Apple Watch development! Apple released their much awaited Apple Watch SDK called WatchKit this week.  Through the WatchKit we start to get an idea of just what the Apple Watch is capable of and also what it’s not.  Here are some of the things to know to help get…

.NET Framework goes Open Source and Cross Platform

Microsoft is holding a virtual conference today called Connect() and it’s keynote is chock full of new announcements.  Chief among many is that Microsoft is going to make the entire .NET core stack open source with its next release as well as offering server side .NET implementations for Linux and OSX.  They are also furthering…

Try Out Apache Cordova in Visual Studio

Microsoft’s Visual Studio Team makes learning more about Apache Cordova easier with a new fully loaded Azure VM Interested in building hybrid mobile apps without leaving the comfort of Visual Studio?  Not sure what a hybrid mobile app is?  Now you can experiment to your heart’s content without installing a single SDK.  Microsoft’s Visual Studio team…