Android Programming In Java: Starting with an App, 3rd Edition

Book Description

Programming an Android app is an attractive proposition. Android increasingly dominates the global smartphone market, meaning many potential users. The tools you need to create an app are free to download and use and you don’t need anyone’s permission to get started.  The only difficulty is that the Android is a tough system to master. It is easy enough to get started as Android Studio will build you a Hello World app in a few minutes, but what you do next is more difficult and to create a good app you need a feel for how the system works and its limitations.

Android Programming In Java: Starting With An App not only shows you how common tasks are done in Android Studio 3, but also explains why they are done in a particular way. Although Android development seems confusing at first, it has patterns which mean that having done something once you can generalize the approach to components you haven’t previously encountered.

There are plenty of examples in this book but they are deliberately simple, stripped down to let you see what is essential. It isn’t a complete treatment of everything Android.  Instead it focuses on the things you need to know to write an app, in particular creating the user interface (UI) because this is what you spend most of your time working on even if the app in question is sophisticated. In this book you will find out how to build an app with a single Activity and a UI, a good foundation for further Android programming.

中文：

书名：Java中的Android编程：从应用程序开始，第三版

编写Android应用程序 是一个很有吸引力的提议。安卓在全球智能手机市场日益占据主导地位，这意味着许多潜在用户。创建一款应用程序所需的工具都是免费下载和使用的，而且你不需要任何人的许可就可以开始使用。唯一的困难是，Android系统很难掌握。入门很容易，因为Android Studio会在几分钟内为你构建一个Hello World应用程序，但你接下来要做的就更难了，要创建一个好的应用程序，你需要了解系统的工作原理及其局限性。

Java中的Android编程：从App开始 不仅向你展示了Android Studio3中常见的任务是如何完成的，还解释了为什么它们会以一种特殊的方式完成。尽管Android开发乍一看似乎令人困惑，但它具有一些模式，这意味着一旦完成了某项工作，就可以将方法推广到您以前从未遇到过的组件。

这本书中有很多例子，但它们都刻意简单，只为了让你明白什么是关键。它并不是对所有Android系统的全面处理。相反，它专注于编写应用程序所需了解的事情，特别是创建用户界面(UI)，因为这是您花费大部分时间进行工作的地方，即使所讨论的应用程序是复杂的。在本书中，您将了解如何使用单一活动和用户界面构建应用程序，为进一步的Android编程奠定良好的基础。