Learn to code a simple Android widget that can be updated automatically (after a time period), or in response to user action. Full source code included.

Get started with <code>GraphLib</code>, an open source library for graphing mathematical functions, plotting points, and drawing line graphs in Android.

If you followed along in Part 2, you’ve already loaded your source code and resource files into your Android Studio project. Now you’re ready to build the app for the first time.

Beloved by Linux users since its original release in 1996, GIMP is one of the most famous and best-maintained open source software tools out there. This software is about as close to image editing ...