在地图上显示当前的位置

  1 package com.aihunqin.crazy;

  2 

  3 import android.app.Activity;

  4 import android.os.Bundle;

  5 import android.view.View;

  6 import android.view.View.OnClickListener;

  7 import android.widget.TextView;

  8 

  9 import com.baidu.location.BDLocation;

 10 import com.baidu.location.BDLocationListener;

 11 import com.baidu.location.LocationClient;

 12 import com.baidu.location.LocationClientOption;

 13 import com.baidu.location.LocationClientOption.LocationMode;

 14 import com.baidu.mapapi.SDKInitializer;

 15 import com.baidu.mapapi.map.BaiduMap;

 16 import com.baidu.mapapi.map.BitmapDescriptor;

 17 import com.baidu.mapapi.map.BitmapDescriptorFactory;

 18 import com.baidu.mapapi.map.MapStatusUpdate;

 19 import com.baidu.mapapi.map.MapStatusUpdateFactory;

 20 import com.baidu.mapapi.map.MapView;

 21 import com.baidu.mapapi.map.MarkerOptions;

 22 import com.baidu.mapapi.map.OverlayOptions;

 23 import com.baidu.mapapi.model.LatLng;

 24 import com.baidu.mapapi.search.route.DrivingRoutePlanOption;

 25 import com.baidu.mapapi.search.route.DrivingRouteResult;

 26 import com.baidu.mapapi.search.route.OnGetRoutePlanResultListener;

 27 import com.baidu.mapapi.search.route.PlanNode;

 28 import com.baidu.mapapi.search.route.RoutePlanSearch;

 29 import com.baidu.mapapi.search.route.TransitRouteResult;

 30 import com.baidu.mapapi.search.route.WalkingRouteResult;

 31 import com.example.aihunqin.R;

 32 

 33 public class WenhongLocation extends Activity {

 34     BaiduMap mBaiduMap = null;

 35     MapView mMapView = null;

 36     public LocationClient mLocationClient;

 37     public MyLocationListener mMyLocationListener;

 38     public TextView mLocationResult, back;

 39 

 40     @Override

 41     protected void onCreate(Bundle savedInstanceState) {

 42 

 43         super.onCreate(savedInstanceState);

 44         SDKInitializer.initialize(getApplicationContext());

 45         setContentView(R.layout.layout_wenhonglocation);

 46 

 47         back = (TextView) findViewById(R.id.back);

 48         back.setVisibility(View.VISIBLE);

 49         back.setOnClickListener(new OnClickListener() {

 50 

 51             @Override

 52             public void onClick(View v) {

 53                 finish();

 54             }

 55         });

 56 

 57         mMapView = (MapView) findViewById(R.id.bmapView);

 58         mBaiduMap = mMapView.getMap();

 59 

 60         mLocationClient = new LocationClient(getApplicationContext());

 61         mMyLocationListener = new MyLocationListener();

 62         mLocationClient.registerLocationListener(mMyLocationListener);

 63         InitLocation();

 64         mLocationClient.start();

 65 

 66     }

 67 

 68     /**

 69      * 实现定位回调监听

 70      * 

 71      * @author Alex

 72      * 

 73      */

 74     public class MyLocationListener implements BDLocationListener {

 75 

 76         @Override

 77         public void onReceiveLocation(BDLocation location) {

 78             // Receive Location

 79             StringBuffer sb = new StringBuffer(256);

 80             sb.append("time:");

 81             sb.append(location.getTime());

 82             sb.append("\nerror code:");

 83             sb.append(location.getLocType());

 84             sb.append("\nlatitude:");

 85             sb.append(location.getLatitude());

 86             sb.append("\nlontitude:");

 87             sb.append(location.getLongitude());

 88             sb.append("\nradius:");

 89             sb.append(location.getRadius());

 90             if (location.getLocType() == BDLocation.TypeNetWorkLocation) {

 91                 sb.append("\naddr:");

 92                 sb.append(location.getAddrStr());

 93                 // 运营商信息

 94                 sb.append("\noperationers:");

 95                 sb.append(location.getOperators());

 96             }

 97 

 98             setMarker(location.getLatitude(), location.getLongitude());

 99             // logMsg(sb.toString());

100         }

101     }

102 

103     void setMarker(double lat, double lng) {

104         // 定义Markker坐标点

105         LatLng point = new LatLng(lat, lng);

106         // 构建Marker图标

107         BitmapDescriptor bitmap = BitmapDescriptorFactory

108                 .fromResource(R.drawable.startpoint);

109         // 构建MarkerOption,用于在地图上添加Marker

110         OverlayOptions option = new MarkerOptions().position(point)

111                 .icon(bitmap);

112         // 在地图上添加Marker,并显示

113         mBaiduMap.addOverlay(option);

114 

115         MapStatusUpdate mapstatusupdate = MapStatusUpdateFactory

116                 .newLatLng(point);

117 

118         mBaiduMap.setMapStatus(mapstatusupdate);

119 

120         // setRoutePlan(point);

121     }

122 

123     void setRoutePlan(LatLng point) {

124         // 驾车线路规划

125         RoutePlanSearch mSearch = RoutePlanSearch.newInstance();

126         OnGetRoutePlanResultListener listener = new OnGetRoutePlanResultListener() {

127 

128             @Override

129             public void onGetWalkingRouteResult(WalkingRouteResult arg0) {

130                 // 获取步行路线规划结果

131             }

132 

133             @Override

134             public void onGetTransitRouteResult(TransitRouteResult arg0) {

135                 // 获取公交换乘路径规划结果

136             }

137 

138             @Override

139             public void onGetDrivingRouteResult(DrivingRouteResult arg0) {

140                 // 获取驾车路线规划结果

141             }

142         };

143         // 设置驾车线路规划检索监听者

144         mSearch.setOnGetRoutePlanResultListener(listener);

145         // 准备检索起、终点信息

146         PlanNode stNode = PlanNode.withLocation(point);

147         LatLng endpoint = new LatLng(121.473605, 31.232176);

148         PlanNode enNode = PlanNode.withLocation(endpoint);

149         mSearch.drivingSearch((new DrivingRoutePlanOption()).from(stNode).to(

150                 enNode));

151     }

152 

153     /**

154      * 显示请求你字符串

155      * 

156      * @param str

157      */

158     public void logMsg(String str) {

159         try {

160             if (mLocationResult != null)

161                 mLocationResult.setText(str);

162         } catch (Exception e) {

163             e.printStackTrace();

164         }

165     }

166 

167     private void InitLocation() {

168         LocationClientOption option = new LocationClientOption();

169         option.setLocationMode(LocationMode.Battery_Saving);// 设置定位模式

170         option.setCoorType("bd09ll");

171         option.setIsNeedAddress(true);

172         mLocationClient.setLocOption(option);

173     }

174 }

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