Android Versions

This book teaches Android development for all widely used versions of Android. As of this writing, that is Android 4.4 (KitKat) - Android 7.1 (Nougat). While there is a small amount of market-share on older versions of Android, we find that for most developers the amount of effort required to support those versions is not worth the reward. For more info on the support of versions of Android earlier than 4.4, see earlier editions of this book. The second edition targeted Android 4.1 and up, and the first edition targeted Android 2.3 and up.

As Android releases new versions, the techniques you learn in this book will continue to work thanks to Android’s backward compatibility support (see Chapter 6 for details). We will keep track of changes at forums.bignerdranch.com and offer notes on using this book with the latest version.

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