package baidumapsdk.demo;
import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;
import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BaiduMap.OnMapLoadedCallback;
import com.baidu.mapapi.map.BaiduMap.OnMapStatusChangeListener;
import com.baidu.mapapi.map.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MapView;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.search.geocode.GeoCodeResult;
import com.baidu.mapapi.search.geocode.GeoCoder;
import com.baidu.mapapi.search.geocode.OnGetGeoCoderResultListener;
import com.baidu.mapapi.search.geocode.ReverseGeoCodeOption;
import com.baidu.mapapi.search.geocode.ReverseGeoCodeResult;
public class CenterDemo extends Activity implements OnMapLoadedCallback,
OnMapStatusChangeListener, OnGetGeoCoderResultListener {
private MapView mMapView;
private BaiduMap mBaiduMap;
// 定位相关
LocationClient mLocClient;
public MyLocationListenner myListener = new MyLocationListenner();
//
GeoCoder mSearch = null; // 搜索模块,也可去掉地图模块独立使用
boolean isFirstLoc = true;// 是否首次定位
private TextView tvLongitude, tvLatitude, tvAddress;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_center);
init();
}
private void init() {
initView();
setListener();
}
private void initView() {
mMapView = (MapView) findViewById(R.id.mapview);
mBaiduMap = mMapView.getMap();
// 开启定位图层
mBaiduMap.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);
option.setIsNeedAddress(true);
mLocClient.setLocOption(option);
mLocClient.start();
// 初始化搜索模块,注册事件监听
mSearch = GeoCoder.newInstance();
mSearch.setOnGetGeoCodeResultListener(this);
//
tvLongitude = (TextView) findViewById(R.id.longitude);
tvLatitude = (TextView) findViewById(R.id.latitude);
tvAddress = (TextView) findViewById(R.id.address);
}
private void setListener() {
mBaiduMap.setOnMapLoadedCallback(this);
mBaiduMap.setOnMapStatusChangeListener(this);
}
public class MyLocationListenner implements BDLocationListener {
@Override
public void onReceiveLocation(BDLocation location) {
// map view 销毁后不在处理新接收的位置
if (location == null || mMapView == null)
return;
MyLocationData locData = new MyLocationData.Builder().accuracy(0)
// 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();
mBaiduMap.setMyLocationData(locData);
if (isFirstLoc) {
isFirstLoc = false;
LatLng ll = new LatLng(location.getLatitude(),
location.getLongitude());
MapStatusUpdate u = MapStatusUpdateFactory.newLatLng(ll);
mBaiduMap.animateMapStatus(u);
}
}
public void onReceivePoi(BDLocation poiLocation) {
}
}
@Override
public void onMapStatusChange(MapStatus arg0) {
}
@Override
public void onMapStatusChangeFinish(MapStatus arg0) {
LatLng ptCenter = arg0.target;
tvLongitude.setText("经度:" + ptCenter.longitude);
tvLatitude.setText("纬度:" + ptCenter.latitude);
// 反Geo搜索
mSearch.reverseGeoCode(new ReverseGeoCodeOption().location(ptCenter));
}
@Override
public void onMapStatusChangeStart(MapStatus arg0) {
}
@Override
public void onMapLoaded() {// 地图加载完成
}
@Override
public void onGetGeoCodeResult(GeoCodeResult arg0) {
}
@Override
public void onGetReverseGeoCodeResult(ReverseGeoCodeResult arg0) {
tvAddress.setText("地址:" + arg0.getAddress());
}
@Override
protected void onPause() {
mMapView.onPause();
super.onPause();
}
@Override
protected void onResume() {
mMapView.onResume();
super.onResume();
}
@Override
protected void onDestroy() {
// 退出时销毁定位
mLocClient.stop();
// 关闭定位图层
mBaiduMap.setMyLocationEnabled(false);
mMapView.onDestroy();
mMapView = null;
super.onDestroy();
}
}