Google android dominates the mobile marketand by targeting android, your apps can run on most of the phones and tablets in the world. This new fourth edition of the 1 book for learning android covers all modern android versions from android 4.1 through android 5.0. Freshly added material covers new android features such as fragments and google play services. Android is a platform you cant afford not to learnand this book gets you started. Android is a software toolkit for mobile phones and tablets, created by google. Its inside more than a billion devices, making android the number one platform for application developers. Your own app could be running on all those devices. Getting started developing with android is easy. You dont even need access to an android phone, just a computer where you can install the android sdk and the emulator that comes with it. Within minutes, helloandroid gets you creating your first working application - androids version of hello, world. From there, youll build up a more substantial example - an ultimate tic-tac-toe game. By gradually adding features to the game, youll learn about many aspects of android programming, such as creating animated user interfaces, playing music and sound effects, building location-based services including gps and cell-tower triangulation and accessing web services. Youll also learn how to publish your applications to the google play store. This fourth edition of the bestselling android classic has been revised for android 4.1-4.3 jelly bean , 4.4 kitkat and android 5.0 lollipop . Topics have been streamlined and simplified based on reader feedbackand every page and example has been reviewed and updated for compatibility with the latest versions of android. If youd rather be coding than reading about coding, this book is for you