As I've mentioned on my blog before, I like to use Xamarin's UITest library (and Calabash, by extension) to help automate the generation of app screenshots. This allows me to reuse my existing UI testing code as well, making it incredibly easy to create the generation scripts. Earlier this year I ran into an issue where the screenshots being generated for the iPhone 6 and 6 Plus were coming out at a lower resolution than expected,…

I gave a talk tonight at the NYC Mobile .NET Developers Group on automated UI testing and monitoring for apps. For anyone interested, here are my slides: I don't have any specific sample code available from this talk since all of my demos were entirely live coded, but if you're looking to get started then Xamarin's documentation is a great place to start, or I'm happy to try and answer any specific questions anyone might have…

Earlier this week we found ourselves looking into a strange databinding problem, where things were working as expected on devices but not in the simulator. Differences between simulators and devices is certainly not uncommon, but I'm not sure I can recall a time where it was on the device that things were binding correctly, and the simulator that was showing problems. The usual suspect of being a linker issue was off the table, so we had…

Apple's new wearable is finally making it out to users, which means now is the time to start building apps for it! First, let's take a look at the different pieces that make up a watch app. Watch App: While you might think that this is where most of your app logic will live, watch apps actually offload all real work to their parent apps. The watch app itself effectively contains just the user interface and…

Back in 2013 I blogged about a library I published called JVFloatSharp that provides a slick floating placeholder on iOS after you start typing into a text input: Outside of a few small bugfixes and upgrading to the unified API a few months back I really haven't needed to mess with it much, and have been successfully using it in many apps in the meantime. I'd always intended to make it available on NuGet, but I…