watchos 2 app development essentials: developing watchkit apps for the apple watch (english edition)  intended for readers with some existing experience of ios development, watchos 2 app development essentials has been fully updated for watchos 2, swift 2 and xcode 7.<br><br>beginning with the basics, this book provides an introduction to watchkit apps and the watchos 2 app development architecture before covering topics such as tables, navigation, user input handling, maps, menus, working with images and videos and the recording and playback of audio. <br><br>more advanced topics are also covered throughout the book, including communication and data sharing between a watchkit app and the parent ios app using the watchconnectivity framework, working with custom fonts, user interface animation, clock face complications and the design and implementation of custom notifications.<br><br>as with all the books in the “development essentials” series, watchos 2 app development essentials takes a modular approach to the subject of app development for the apple watch, with each chapter covering a self-contained topic area consisting of detailed explanations, examples and step-by-step tutorials. this makes the book both an easy to follow learning aid and an excellent reference resource.<br>