This is a complete tutorial, discussing how to build a simple calculator app for Android. Check it out, and implement some of the recommended improvements.

It’s a neat demonstration project — but also a potentially useful one. The Windows Calculator has a bunch of built-in features that aren’t present in the stock Android calculator, for example.

[Click on image for larger view.] Uno Calculator (source: Uno Platform). Enabling the same C# and XAML code to run on Web, mobile and desktop is "what we do," the team said in a June 25 blog post ...