Professional Android(安卓)2 Development - 5 - android

Hello, Android

WHAT ’S IN THIS CHAPTER?

A background to mobile application development
What Android is (and what it isn ’t)
An introduction to the Android SDK features
What devices Android runs on
Why develop for mobile and Android?
An introduction to the SDK and the Android development framework

本章内容：

移动应用开发背景
Android 是与不是
介绍Android SDK 特性
Android 运行在什么设备上
为什么为手机和Android 开发？
介绍SDK 和Android 开发框架

Whether you’re an experienced mobile engineer, a desktop or web developer, or a complete
programming novice , Android represents an exciting new opportunity to write innovative applications for mobile devices.

无论你是否是一个老练的手机工程师，一个桌面或Web 程序员，或一个彻底的编程菜鸟，Android 代表的是一个激动人心的为手机设备开发新应用的崭新机会。

Despite the name, Android will not help you create an unstoppable army of emotionless robot
warriors on a relentless quest to cleanse the earth of the scourge of humanity.

别管这个名字，Android 不会帮你创造一直永不停息的没有感情的机器人战士军队来无情地消灭地球上的人类。

Instead, Android is an open-source software stack that includes the operating system, middleware, and key mobile applications along with a set of API libraries for writing mobile applications that can shape the look, feel, and function of mobile handsets.

相反，Android 是一个开源软件包括了操作系统，中间件和关键的手机应用及一组用于开发视觉、感官和功能都符合手机硬件的手机应用移动的API 库。

Small, stylish , and versatile , modern mobile devices have become powerful tools that incorporate cameras, media players, GPS systems, and touchscreens. As technology has evolved , mobile phones have become about more than simply making calls, but their software and development platforms have struggled to keep pace .

小巧，时髦，功能种多，现代手机设备变为强大的工具，吸纳了照相机，多媒体，GSP 系统和触摸屏。随着技术的发展，手机变得不仅仅能打电话，但是他们的软件和开发平台的努力依旧缓步不前。

Until recently, mobile phones were largely closed environments built on highly fragmented, proprietary operating systems that required proprietary development tools.

直到最近，手机厂商很大程度上封闭地构造在高度分裂的环境上，操作系统和开发工具都是私有的。

The phones themselves often prioritized native applications over those written by third parties. This has introduced an artificial barrier for developers hoping to build on increasingly powerful mobile hardware.

手机厂商自己经常优先照顾自己的应用而非第三方应用。这种行为对开发者希望在手机硬件上构造强大的应用造成了一种人为的障碍。

Professional Android(安卓)2 Development - 5

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