To demonstrate multi-touch, we’re going to build a simple image viewer application that lets you zoom in and scroll around an image. See Part 1 for a screenshot of the finished product. Begin by ...

Java is the official programming language of Android and it is the basis for many components of the OS itself, plus it is found at the core of Android’s SDK. Java ...

Older Android devices can be had for a song, and in many cases are still packing considerable computational power. With built in networking, a battery, and a big touch screen, they could easily take ...