[转载]Android关于百度地图定位的使用

[转载]关于百度地图的使用 – 网络渔夫 – 博客园.

在Android手机上使用百度地图来定位的资料在网上很难找到，经过两天的折腾，终于搞出来了。下面的代码已经实现完整定位，需要注意的就是，如果你的 百度地图的底图未显示出来，请确保你手机能使用GPRS(以移动为例)或WIFI联网，要使用精确定位的话，也必须要打开GPS。下面我们直接上代码，代 码说明，百度里面有，一看就知道：

step1 AndroidManifest.xml文件

 <?xml version="1.0" encoding="utf-8"?>
  <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.studio.basf.mapdemo" android:versionCode="1"
     android:versionName="1.0">
     <application android:icon="@drawable/icon" android:label="@string/app_name"
         android:name="MapManagerApplication">
         <activity android:name=".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>
     </application>
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>    
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"></uses-permission>
     <uses-permission android:name="android.permission.INTERNET"></uses-permission>    
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>    
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>
     <uses-permission android:name="android.permission.READ_PHONE_STATE"></uses-permission>
     <supports-screens android:largeScreens="true"
         android:normalScreens="true" android:smallScreens="true"
         android:resizeable="true" android:anyDensity="true" />
     <uses-sdk android:minSdkVersion="4" />
 </manifest> 

step2 首先建立一个全局应用类，主要是创建一个BMapManager实例，为了方便管理

 package com.studio.basf.mapdemo;
 
 import android.app.Application;
 
 import com.baidu.mapapi.BMapManager;
 import com.baidu.mapapi.MKEvent;
 import com.baidu.mapapi.MKGeneralListener;
 
 public class MapManagerApplication extends Application {
     BMapManager bMapManager = null;
     
     static class MyGeneralListener implements MKGeneralListener {
 
         @Override
         public void onGetNetworkState(int iError) {
 
         }
 
         @Override
         public void onGetPermissionState(int iError) {
             if (iError ==  MKEvent.ERROR_PERMISSION_DENIED) {
                 
             }
         }
     }
 
     @Override
     public void onCreate() {
         // TODO Auto-generated method stub
         bMapManager = new BMapManager(this);
         bMapManager.init("你的key", new MyGeneralListener());
     }    
 }

step3 继承MapActivity，同时实现LocationListener接口

 package com.studio.basf.mapdemo;
 
 import android.location.Location;
 import android.os.Bundle;
 
 import com.baidu.mapapi.BMapManager;
 import com.baidu.mapapi.GeoPoint;
 import com.baidu.mapapi.LocationListener;
 import com.baidu.mapapi.MKLocationManager;
 import com.baidu.mapapi.MapActivity;
 import com.baidu.mapapi.MapController;
 import com.baidu.mapapi.MapView;
 import com.baidu.mapapi.MyLocationOverlay;
 
 public class MainActivity extends MapActivity implements LocationListener {
     private BMapManager mBMapMan = null;
     private MapView mMapView = null;
     private MapController mMapController = null;
     private MKLocationManager locationManager = null;
 
     /** Called when the activity is first created. */
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.main);
 
         mBMapMan = ((MapManagerApplication) getApplication()).bMapManager;
         if (mBMapMan == null) {
             ((MapManagerApplication) getApplication()).bMapManager = new BMapManager(
                     getApplication());
             ((MapManagerApplication) getApplication()).bMapManager.init(
                     "你的key",
                     new MapManagerApplication.MyGeneralListener());
             mBMapMan = ((MapManagerApplication) getApplication()).bMapManager;
         }
         super.initMapActivity(mBMapMan);
 
         locationManager = mBMapMan.getLocationManager();
         locationManager.requestLocationUpdates(this);
 
         mMapView = (MapView) findViewById(R.id.bmapsView);
         mMapView.setBuiltInZoomControls(true);// 设置启用默认的缩放控件
 
         mMapController = mMapView.getController();// 得到mMapView的控制权,可以用它控制和驱动平移和缩放
         mMapController.setZoom(12);// 设置地图zoom级别
 
         MyLocationOverlay mylocTest = new MyLocationOverlay(this, mMapView);
         mylocTest.enableMyLocation();
         mylocTest.enableCompass();
         mMapView.getOverlays().add(mylocTest);
     }
 
     @Override
     public void onLocationChanged(Location location) {
         // TODO Auto-generated method stub
 
         if (location != null) {
             mMapController.animateTo(new GeoPoint(
                     (int) (location.getLatitude() * 1E6), (int) (location
                             .getLongitude() * 1E6)));
         }
    }
 
     @Override
     protected void onDestroy() {
        // TODO Auto-generated method stub
         if (mBMapMan != null) {
             mBMapMan.destroy();
             ((MapManagerApplication) getApplication()).bMapManager = null;
             mBMapMan = null;
         }
         super.onDestroy();
     }
 
     @Override
     protected void onPause() {
        // TODO Auto-generated method stub
         if (mBMapMan != null) {
             mBMapMan.stop();
         }
         super.onPause();
     }
 
     @Override
     protected void onResume() {
         // TODO Auto-generated method stub
         if (mBMapMan != null) {
             mBMapMan.start();
         }
         super.onResume();
     }
 
     @Override
     protected boolean isRouteDisplayed() {
         // TODO Auto-generated method stub
         return false;
     }
 }

因为代码在需要在真机上运行才能看到效果，所以我这里就截图，上面的代码直接复制下来就可以使用。