Google Maps API v2 Demo Tutorial

申请API KEY

https://code.google.com/apis/console/?noredirect

1. 创建项目，名称随意，只是为了区分

2. 开启Google Maps Android API v2服务

3. 申请API KEY，使用证书的SHA1值和package name

注：Create an OAuth 2.0 client ID...这个东西不用去管它

设置Google Play Service

1. 使用Android包管理下载，Extras->Google Play Service

2. 同时下载对应Android版本的Google APIs

3. 导入Google_Play_Serviecs_Lib，勾选Copy Projects into Workspace，路径是<android-sdk>/extras/google/google_play_services/libproject/google-play-services_lib/

参考：http://developer.android.com/google/play-services/setup.html

创建新的App Project

1. 创建Android Application Project，Compile With不需要选择Google APIs也可以

2. 引用Google_Play_Services_Lib，Project->Properties->Android，新增引用

3. 在AndroidManifest.xml中增加Google Play services version

<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />

4. 在AndroidManifest.xml中增加API Key

<meta-data
android:name="com.google.android.maps.v2.API_KEY"
android:value="API_KEY"/>

5. 在AndroidManifest.xml中增加Permissions

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<!-- The following two permissions are not required to use
Google Maps Android API v2, but are recommended. -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>

6. 在AndroidManifest.xml中增加OpenGL ES version 2

<uses-feature
android:glEsVersion="0x00020000"
android:required="true"/>

7. 在activity-main.xml中增加Map的Fragment

8. MainActivity.java的代码不用做修改

参考：https://developers.google.com/maps/documentation/android/start?hl=zh-cN