百度地图定位
package com.baidu.riako10;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.SDKInitializer;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MarkerOptions;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.model.LatLng;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.widget.Toast;
public class MainActivity extends Activity {
private MapView mapView;
private BaiduMap baiduMap;
private LocationClient mLocClient;
private BDLocationListener myListener=new myListener();
boolean isFirstLoc = true; // 是否首次定位
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// 在使用SDK各组件之前初始化context信息,传入ApplicationContext
// 注意该方法要再setContentView方法之前实现
SDKInitializer.initialize(getApplicationContext());
setContentView(R.layout.activity_main);
//找到相应的控件
mapView = (MapView) findViewById(R.id.bmapView);
baiduMap = mapView.getMap();
// 开启定位图层
baiduMap.setMyLocationEnabled(true);
// 定位初始化
mLocClient = new LocationClient(this);
mLocClient.registerLocationListener(myListener);
LocationClientOption option = new LocationClientOption();
option.setOpenGps(true); // 打开gps
option.setCoorType("bd09ll"); // 设置坐标类型
option.setScanSpan(1000);//扫描时间
mLocClient.setLocOption(option);
mLocClient.start();
//定义Maker坐标点
LatLng point = new LatLng(39.963175, 116.400244);
//构建Marker图标
BitmapDescriptor bitmap = BitmapDescriptorFactory
.fromResource(R.drawable.icon_marka);
//构建MarkerOption,用于在地图上添加Marker
OverlayOptions option2 = new MarkerOptions()
.position(point)
.icon(bitmap);
//在地图上添加Marker,并显示
baiduMap.addOverlay(option2);
}
class myListener implements BDLocationListener{
@Override
public void onReceiveLocation(BDLocation location) {
//定义Maker坐标点
LatLng point = new LatLng(location.getLatitude(), location.getLongitude());
//构建Marker图标
BitmapDescriptor bitmap = BitmapDescriptorFactory
.fromResource(R.drawable.icon_marka);
//构建MarkerOption,用于在地图上添加Marker
OverlayOptions option2 = new MarkerOptions()
.position(point)
.icon(bitmap);
//在地图上添加Marker,并显示
baiduMap.addOverlay(option2);
// map view 销毁后不在处理新接收的位置
if (location == null || mapView == null) {
return;
}
MyLocationData locData = new MyLocationData.Builder()
.accuracy(location.getRadius())//得到定位区域的半径
// 此处设置开发者获取到的方向信息,顺时针0-360
.direction(100).latitude(location.getLatitude())
.longitude(location.getLongitude()).build();
baiduMap.setMyLocationData(locData);
if (isFirstLoc) {
isFirstLoc = false;
LatLng ll = new LatLng(location.getLatitude(),
location.getLongitude());
MapStatus.Builder builder = new MapStatus.Builder();
builder.target(ll).zoom(18.0f);
baiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));
}
}
}
@Override
protected void onPause() {
mapView.onPause();
super.onPause();
}
@Override
protected void onResume() {
mapView.onResume();
super.onResume();
}
@Override
protected void onDestroy() {
// 退出时销毁定位
mLocClient.stop();
// 关闭定位图层
baiduMap.setMyLocationEnabled(false);
mapView.onDestroy();
mapView = null;
super.onDestroy();
}
}
//////////////////////////////////权限///////////////////////////////////////////////////////////////////////////
<uses-permission android:name="com.android.launcher.permission.READ_SETTINGS" />
<!-- 这个权限用于进行网络定位 -->
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<!-- 这个权限用于访问GPS定位 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<!-- 用于访问wifi网络信息,wifi信息会用于进行网络定位 -->
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<!-- 获取运营商信息,用于支持提供运营商信息相关的接口 -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<!-- 用于读取手机当前的状态 -->
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<!-- 写入扩展存储,向扩展卡写入数据,用于写入离线定位数据 -->
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<!-- 访问网络,网络定位需要上网 -->
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<meta-data
android:name="com.baidu.lbsapi.API_KEY"
android:value="WH0Rsu939XtMGGeABQYpPZSwvDWkKvnV" />
<service
android:name="com.baidu.location.f"
android:enabled="true"
android:process=":remote" >
</service>