《創建你的第一個應用》
Welcome to Android application development!
歡迎加入Android應用程序開發！
This class teaches you how to build your first Android app. You’ll learn how to create an Android project and run a debuggable version of the app. You'll also learn some fundamentals of Android app design, including how to build a simple user interface and handle user input.
本課程主要講怎樣創建你的第一個應用程序。你會學到怎樣創建一個Android項目，怎樣編譯你的程序的一個可調式版本。你還會學到一些Android應用設計的基礎：包括一個簡單的用戶界面和一個簡單的用戶輸入交互。
Before you start this class, be sure you have your development environment set up. You need to:
在你開始學習本課程之前，請確定你已經把開發環境創建好了。你需要：
- Download the Android SDK.
- Install the ADT plugin for Eclipse (if you’ll use the Eclipse IDE).
- Download the latest SDK tools and platforms using the SDK Manager.
- 下載 Android SDK。
- 安裝 Eclipse IDE 的ADT插件。
- 用SDK Manager 下載最新版本的SDK平臺和SDK工具。
If you haven't already done these tasks, start by downloading the Android SDK and following the install steps. Once you've finished the setup, you're ready to begin this class.
如果你還沒有完成以上步驟，請開始下載Android SDK並進行後續步驟，一旦完成了這些步驟，你就可以開始本課程了。
This class uses a tutorial format that incrementally builds a small Android app that teaches you some fundamental concepts about Android development, so it's important that you follow each step.
本課程是以教程形式通過一步步創建一個小應用來教你一些Android開發的基本概念，所以以下的步驟對你十分重要。