android google map v2的小例子 美洲地图的显示

步骤：1,.如果没有google账号，就申请一个1.到该网站申请google map v2的key    ------->>https://developers.google.com/maps/documentation/android/start?hl=en    2.进入google APIS  console  控制台3.点击services     ,打开  google maps  android API v2服务4.点击API Access,进入申请页面，点击create new   android key      写SHA1 certificate fingerprint and package，  下面就应该是用keytool生成MD5，SHA1 certificate指纹的过程了。运行cmd,进入到keytool的目录下，输入 keytool -list -keystore debug.keystore(只有已经将debug.store拷贝到同目录下时可用)，否则的话应该这样 keytool -list -alias androiddebugkey -keystore " 路径/debug.keystore " - storepass android -keypass android，注意要有双引号。执行结果不出意外的话应该是这样的：androiddebugkey, May 4, 2009, PrivateKeyEntry,Certificate fingerprint (MD5): XX:XX:XX:XX:XX:XX:XX:XX.............按下回车键它要我输入keystore的密码，这时按Enter。如果失败的活，就输入android6.、安装Google Play services SDK：     如果是使用Eclipse开发工具，则可以点击窗口—Android SDK Manage – Extras – Google Play service，install packages...安装。7.导入Google Play services类库：1）在Eclipse里面选择：File > Import > Android > Existing Android Code Into Workspace然后点击Next.　　之后Browse..., 找到路径下的<android-sdk-folder>/extras/google/google_play_services/libproject/google-play-services_lib, 然后选择Finish。2）添加对这个库的引用：    在自己的项目上右键，选Properties，左边选Android，然后在下面的Library里面Add刚才的google-play-services_lib。8.将申请的key用在下面的代码中activity_main.xml文件<?xml version="1.0" encoding="utf-8"?><fragment xmlns:android="http://schemas.android.com/apk/res/android"              android:id="@+id/map"              android:layout_width="match_parent"               android:layout_height="match_parent"              class="com.google.android.gms.maps.SupportMapFragment"/>AndroidManifest.xml文件<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"    package="com.maptest"    android:versionCode="1"    android:versionName="1.0" >    <uses-sdk        android:minSdkVersion="10"        android:targetSdkVersion="16" /> <permission  android:name="com.maptest.permission.MAPS_RECEIVE"       //使用地图需要的权限           android:protectionLevel="signature"/> <uses-permission android:name="com.maptest.permission.MAPS_RECEIVE"/> <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"/>  <uses-feature    android:glEsVersion="0x00020000"  android:required="true"/>    <application        android:allowBackup="true"        android:icon="@drawable/ic_launcher"        android:label="@string/app_name"        android:theme="@style/AppTheme" >        <activity            android:name="com.maptest.MainActivity"            android:label="@string/app_name" >            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>        <meta-data    android:name="com.google.android.maps.v2.API_KEY"                android:value="AIzaSyCBYAFGHEl_rwYR9rkAIX7yL8_h05csBWw"/>    </application></manifest>MainActivity.java文件：package com.maptest;import com.maptest.R;import com.google.android.maps.GeoPoint;import com.google.android.maps.MapController;import com.google.android.maps.MapView;import android.os.Bundle;import android.support.v4.app.FragmentActivity;public class MainActivity extends FragmentActivity {// private GeoPoint mGeoPoint;// private MapController mMapController;// private MapView mMapView; @Override protected void onCreate(Bundle savedInstanceState) {  super.onCreate(savedInstanceState);  setContentView(R.layout.activity_main);//  mMapView=(MapView)findViewById(R.id.map);//  //  mMapController=mMapView.getController();//  //  mMapView.setEnabled(true);//  mMapView.setClickable(true);//  //  mMapView.setBuiltInZoomControls(true);//设置地图是否支持放缩//  mGeoPoint=new GeoPoint((int)(33.353473),(int)(120.157471));//设置起点为成都 //  mMapController.animateTo(mGeoPoint);//定位到成都//  mMapController.setZoom(12);//设置倍数 }}再将参考网址 ：https://developers.google.com/maps/documentation/javascript/tutorial