Understand Android OS for both smartphone and tabletprogrammingThis fast-paced introduction to the newest release of Android OS gives aspiring mobile app developers what they need to know toprogram for today's hottest Android smartphones and tablets. Android 4 OS is, for the first time, a single solution for both smartphones and tablets, so if you master the information in this helpful guide, you'll be well on your way to successful development for both devices. From using activities and intents and creating rich user interfaces to working with SMS, messaging APIs, and the Android SDK, what you need is here.