Arcgis andoid开发之应用百度地图接口实现精准定位与显示

怀着激动、兴奋的心情，在这个漫天柳絮的季节写下了这片博文，为什么呢，因为困扰我很久的一个技术性的问题得到了解决，发次博文，供大家参观、学习，同时，也以慰藉我长期困扰的心情，好了，废话不再，言归正传，看看这到底是个什么东西？

 

首先，简单地介绍一下功能：1、离线地图的加载；2、GPS的定位与显示。文字比较模糊，看看实际的效果图：

功能其实很简单，下面解释一下实现思路：

1、布局

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >  

     <com.esri.android.map.MapView
        android:id="@+id/map"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent">
    </com.esri.android.map.MapView>
    <Button
        android:id="@+id/btnStartGps"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:layout_marginLeft="10dp"
        android:layout_marginTop="10dp"
        android:text="GPS定位" />
</RelativeLayout>

布局很简单，一个mapView，用来显示地图；一个button，用来触发GPS开始定位。

2、配置文件

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.esri.arcgis.android.samples.localtiledlayer"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="10" />

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

    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

    <application
        android:icon="@drawable/icon"
        android:label="@string/app_name" >
        <activity
            android:name="com.esri.arcgis.android.samples.localtiledlayer.LocalTiledLayer"
            android:configChanges="orientation"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <service
            android:name="com.baidu.location.f"
            android:enabled="true"
            android:process=":remote" >
        </service>
    </application>
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.USE_CREDENTIALS" />
    <uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
    <uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />

    <permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
    </permission>

    <uses-permission android:name="android.permission.BAIDU_LOCATION_SERVICE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="android.permission.INTERNET" >
    </uses-permission>
    <uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" >
    </uses-permission>
    <!-- <uses-permission android:name="android.permission.WRITE_APN_SETTINGS"></uses-permission> -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" >
    </uses-permission>
    <uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
    <uses-permission android:name="android.permission.WAKE_LOCK" >
    </uses-permission>
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
    <uses-permission android:name="android.permission.ACCESS_GPS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />
    <uses-permission android:name="android.permission.CALL_PHONE" />
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.SEND_SMS" />
    <!-- SDK1.5需要android.permission.GET_TASKS权限判断本程序是否为当前运行的应用? -->
    <uses-permission android:name="android.permission.GET_TASKS" />
    <uses-permission android:name="android.permission.CAMERA" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECORD_AUDIO" >
    </uses-permission>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" >
    </uses-permission>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
    <uses-permission android:name="android.permission.BROADCAST_STICKY" />
    <uses-permission android:name="android.permission.WRITE_SETTINGS" />
    <!-- 来电消音 -->
    <uses-permission android:name="android.permission.PROCESS_OUTGOING_CALLS" >
    </uses-permission>
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS" />

    <supports-screens
        android:anyDensity="true"
        android:largeScreens="true"
        android:normalScreens="false"
        android:resizeable="true"
        android:smallScreens="true" />
</manifest>

具体啥意思，自己去看看相关的资料吧，我在此不多做解释。

3、activity实现

?

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package com.esri.arcgis.android.samples.localtiledlayer;   import android.app.Activity; import android.graphics.Color; import android.os.Bundle; import android.util.Log; import android.view.View; import android.view.View.OnClickListener; import android.widget.Button; import android.widget.Toast;   import com.baidu.location.BDLocation; import com.baidu.location.BDLocationListener; import com.baidu.location.LocationClient; import com.baidu.location.LocationClientOption; import com.baidu.mapapi.BMapManager; import com.baidu.mapapi.MKGeneralListener; import com.baidu.mapapi.map.MKEvent; import com.esri.android.map.GraphicsLayer; import com.esri.android.map.MapView; import com.esri.android.map.ags.ArcGISLocalTiledLayer; import com.esri.core.geometry.GeometryEngine; import com.esri.core.geometry.Point; import com.esri.core.geometry.SpatialReference; import com.esri.core.map.Graphic; import com.esri.core.symbol.SimpleMarkerSymbol; import com.esri.core.symbol.SimpleMarkerSymbol.STYLE;   public class LocalTiledLayer extends Activity {     private MapView map = null;     private ArcGISLocalTiledLayer local;        //提示信息     private Toast toast;     /**      * GPS定位      */     private GraphicsLayer gLayerGps;     private Point wgspoint;     private Point mapPoint;     private Button btnGPS;           //定位SDK的核心类     private LocationClient mLocClient;     //是否手动触发请求定位        private boolean isRequest = true;     //是否首次定位     private boolean isFirstLoc = true;      //地图显示     private BMapManager mBMapMan = null;     private int requestTime=0;       /** Called when the activity is first created. */     @Override     public void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.main);         map = (MapView) findViewById(R.id.map);                   mLocClient = new LocationClient(getApplicationContext());               mLocClient.registerLocationListener(new BDLocationListenerImpl());//注册定位监听接口                                       /**           * LocationClientOption 该类用来设置定位SDK的定位方式。           */                    LocationClientOption option = new LocationClientOption();                   option.setOpenGps(true); //打开GPRS                   option.setAddrType("all");//返回的定位结果包含地址信息                   option.setCoorType("bd09ll");//返回的定位结果是百度经纬度,默认值gcj02                   option.setPriority(LocationClientOption.GpsFirst); // 设置GPS优先                   option.setScanSpan(1000); //设置发起定位请求的间隔时间为1s            option.disableCache(true);//启用缓存定位                  mLocClient.setLocOption(option);  //设置定位参数                   local = new ArcGISLocalTiledLayer("file:///storage/sdcard0/arcgis/base_map.tpk");         map.addLayer(local);                   gLayerGps = new GraphicsLayer();         map.addLayer(gLayerGps);                   //开始定位按钮         btnGPS=(Button)findViewById(R.id.btnStartGps);         btnGPS.setOnClickListener(new OnClickListener(){             @Override             public void onClick(View v) {                 mLocClient.start();//调用此方法开始定位                 requestLocation();             }                   });         }           public void requestLocation()     {         isRequest = true;               if(mLocClient != null && mLocClient.isStarted())         {             showToast("GPS正在定位……");             mLocClient.requestLocation();                   }         else         {             Log.d("log", "locClient is null or not started");         }     }           public class MKGeneralListenerImpl implements MKGeneralListener     {         /**          * 一些网络状态的错误处理回调函数          */         @Override         public void onGetNetworkState(int iError)         {             if (iError == MKEvent.ERROR_NETWORK_CONNECT)             {                 showToast("您的网络出错啦！");             }         }           /**          * 授权错误的时候调用的回调函数          */         @Override         public void onGetPermissionState(int iError)         {             if (iError ==  MKEvent.ERROR_PERMISSION_DENIED)             {                 showToast("API KEY错误, 请检查！");             }         }           }           private void showToast(String msg)     {          if(toast == null)         {              toast = Toast.makeText(this, msg, Toast.LENGTH_SHORT);          }         else         {              toast.setText(msg);              toast.setDuration(Toast.LENGTH_SHORT);         }          toast.show();      }     /**      * 将GPS点标注在地图上      * @param 纬度      * @param 经度      */     public void ShowGpsOnMap(double lon,double lat){         //清空定位图层         gLayerGps.removeAll();         //接收到的GPS的信号X(lat),Y(lon)         double locx = lon;         double locy = lat;         wgspoint = new Point(locx, locy);          mapPoint = (Point) GeometryEngine.project(wgspoint,SpatialReference.create(4326),map.getSpatialReference());         //图层的创建         Graphic graphic = new Graphic(mapPoint,new SimpleMarkerSymbol(Color.RED,18,STYLE.CIRCLE));         gLayerGps.addGraphic(graphic);     }     public class BDLocationListenerImpl implements BDLocationListener     {         /**          * 接收异步返回的定位结果，参数是BDLocation类型参数          */         @Override         public void onReceiveLocation(BDLocation location)         {                       if (location == null)             {                 return;             }                           StringBuffer sb = new StringBuffer(256);               sb.append("time : ");               sb.append(location.getTime());               sb.append("\nerror code : ");               sb.append(location.getLocType());               sb.append("\nlatitude : ");               sb.append(location.getLatitude());               sb.append("\nlontitude : ");               sb.append(location.getLongitude());               sb.append("\nradius : ");               sb.append(location.getRadius());               if (location.getLocType() == BDLocation.TypeGpsLocation)               {                   sb.append("\nspeed : ");                   sb.append(location.getSpeed());                   sb.append("\nsatellite : ");                   sb.append(location.getSatelliteNumber());                                    }               else if (location.getLocType() == BDLocation.TypeNetWorkLocation)               {                   sb.append("\naddr : ");                   sb.append(location.getAddrStr());                                 }                        Log.e("log", sb.toString());                                                   if(isFirstLoc || isRequest)             {                 isRequest = false;             }             isFirstLoc = false;               double lat=location.getLatitude();             double lon=location.getLongitude();             ShowGpsOnMap(lon,lat);         }           @Override         public void onReceivePoi(BDLocation arg0) {             // TODO Auto-generated method stub                       }     } }

　　相对来说，注释也是很清楚地，就不做多解释，思路大概是：

 

显示地图——》接收位置信息，获取经纬度——》将经纬度转换为点在地图上标绘