Developers, build mobile Android apps using Android 4 The fast-growing popularity of Android smartphones and tabletscreates a huge opportunities for developers. If you're anexperienced developer, you can start creating robust mobile Androidapps right away with this professional guide to Android 4application development. Written by one of Google's lead Androiddeveloper advocates, this practical book walks you through a seriesof hands-on projects that illustrate the features of the AndroidSDK. That includes all the new APIs introduced in Android 3 and 4,including building for tablets, using the Action Bar, Wi-Fi Direct,NFC Beam, and more.Shows experienced developers how to create mobile applicationsfor Android smartphones and tabletsRevised and expanded to cover all the Android SDK releasesincluding Android 4.0 (Ice Cream Sandwich), including all updatedAPIs, and the latest changes to the Android platform.Explains new and enhanced features such as drag and drop,fragments, the action bar, enhanced multitouch support, newenvironmental sensor support, major improvements to the animationframework, and a range of new communications techniques includingNFC and Wi-Fi direct.Provides practical guidance on publishing and marketing yourapplications, best practices for user experience, and moreThis book helps you learn to master the design, lifecycle, andUI of an Android app through practical exercises, which you canthen use as a basis for developing your own Android apps.