下载安装Android Studio

Android Studio 中文社区

1.Install Android Studio

Download Android Studio and Launch the downloaded EXE file.

Needs JDK 6 or greater.

安装JDK：

JAVA_HOME指明JDK安装路径，就是刚才安装时的路径C:\Program Files\Java\jdk1.8.0_05，此路径下包括lib，bin，jre等文件夹（此变量最好设置，因为以后运行tomcat，eclipse，ant 等都需要使用此变量）PATH

Path使得系统可以在任何路径下识别java命令，设为：

%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin

CLASSPATH

CLASSPATH为java加载类(class or lib)路径，只有类在classpath中，java命令才能识别，设为：

.;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar

(要加.表示当前路径)
%JAVA_HOME%就是引用前面指定的JAVA_HOME。

>javac -version

2.Adding SDK Packages

Android SDK Manger:Tools>Android>SDK Manager(From Android Studio)

3.Recommended Packages:

1)SDK Tools(Required): Keep this up to date.

2)SDK Platform-tools(Required): Must install this package when first install the SDK.

3)SDK Platform(Required): Recommend use the latest version as your build target. To run your app on older version, you must build against the latest version in order.

Get to know minSDKversion vs. Build Target, refer to uses-sdk-element <uses-sdk>

What API level should I target?

4)System Image(Recommended):Using the Emulator

It is recommended to download system p_w_picpaths of all versions of Andorid your app supports and test your app running on them with the emulator.

5)Android Support(Recommended): Includes a static library that supports older versions.

6)SDK Samples(Recommended): The source code you can use to learn about Android or reuse in your own app. One sample package for one Android platform version.

Tip:For easy access to the SDK tools from a command line, add the location of the SDK'stools/andplatform-toolsto yourPATHenvironment variable.

附：

A Problems connecting to the SDK repository

使用SDK Manager下载packages遇到connection problem，可以使用http代替https。

With the Android SDK Manager window open, select "Settings" in the left pane.

On the right, in the "Misc" section, check the checkbox labeled "Force https://... sources to be fetched using http://..."

ClickSave & Apply.

B Adding New Sites

在第三方设备制造商的Android设备使用提供的第三方API库，安装他们的Android SDK add-on。如果SDK add-on repository 在他们的网站上，则在SDK Manager上添加他们的site：

SelectAvailable Packagesin the left panel.

ClickAdd Add-on Siteand enter the URL of therepository.xmlfile. ClickOK.

Any SDK packages available from the site will now be listed under a new item namedUser Add-ons.


Building Your First App

1.Creating an Android Project