Android Apps: programming step-by-stepnnThe Android operating system is increasingly seen on smartphones and tablet computers.nLikewise, new user applications or apps for short are released every day that allownthe phone or tablet to be personalized to match their owners preferences. The increasingnspeed and computing power of these portable devices now allow applications to be runnthat required a desktop PC or custom designed hardware only a few years ago. Meanwhile,nany smartphone can determine your exact geographic position, shoot videos andnmuch more.nnWhen it comes to personalizing your smartphone you should not feel limited to off the shelfnapplications because creating your own apps and programming Android devices is easiernthan you think.nnThis book is an introduction to programming apps for Android devices. The operation ofnthe Android system is explained in a step by step way, aiming to show how personal applicationsncan be programmed.nnA wide variety of applications is presented based on a solid number of hands-on examples,ncovering anything from simple math programs, reading sensors and GPS data, right up tonprogramming for advanced Internet applications. Besides writing applications in the Javanprogramming language, this book also explains how apps can be programmed usingnJavascript or PHP scripts.