package com.moral.mapcoordinatesapp;
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import android.support.v7.app.AppCompatActivity;
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import android.os.Bundle;
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import android.view.View;
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import android.widget.ImageView;
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import android.widget.TextView;
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import com.baidu.location.BDLocation;
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import com.baidu.location.BDLocationListener;
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import com.baidu.location.LocationClient;
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import com.baidu.location.LocationClientOption;
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import com.baidu.mapapi.map.BaiduMap;
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import com.baidu.mapapi.map.BitmapDescriptorFactory;
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import com.baidu.mapapi.map.MapPoi;
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import com.baidu.mapapi.map.MapStatus;
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import com.baidu.mapapi.map.MapStatusUpdate;
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import com.baidu.mapapi.map.MapStatusUpdateFactory;
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import com.baidu.mapapi.map.MapView;
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import com.baidu.mapapi.map.MarkerOptions;
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import com.baidu.mapapi.map.MyLocationConfiguration;
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import com.baidu.mapapi.map.MyLocationData;
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import com.baidu.mapapi.model.LatLng;
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import com.baidu.mapapi.search.core.SearchResult;
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import com.baidu.mapapi.search.geocode.GeoCodeResult;
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import com.baidu.mapapi.search.geocode.GeoCoder;
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import com.baidu.mapapi.search.geocode.OnGetGeoCoderResultListener;
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import com.baidu.mapapi.search.geocode.ReverseGeoCodeOption;
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import com.baidu.mapapi.search.geocode.ReverseGeoCodeResult;
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public class MainActivity extends AppCompatActivity implements OnGetGeoCoderResultListener {
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private TextView tv_location,tv_coordinates;
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private ImageView bt_change;
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/**
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* MapView 是地图主控件
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*/
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private MapView mMapView;
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private BaiduMap mBaiduMap;
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/**
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* 当前地点击点
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*/
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private LatLng currentPt;
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/**
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* 定位相关
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*/
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LocationClient mLocClient;
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public MyLocationListenner myListener = new MyLocationListenner();
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private MyLocationConfiguration.LocationMode mCurrentMode;
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boolean isFirstLoc = true; // 是否首次定位
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/**
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* 地理位置编码
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*/
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GeoCoder mSearch = null;
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boolean isMap = true; // 是普通地图
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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tv_location = (TextView) findViewById(R.id.tv_location);
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tv_coordinates = (TextView) findViewById(R.id.tv_coordinates);
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bt_change = (ImageView) findViewById(R.id.bt_change);
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bt_change.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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if(isMap){
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mBaiduMap.setMapType(BaiduMap.MAP_TYPE_SATELLITE);
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}else{
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mBaiduMap.setMapType(BaiduMap.MAP_TYPE_NORMAL);
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}
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isMap = !isMap;
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}
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});
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mMapView = (MapView) findViewById(R.id.bmapView);
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mBaiduMap = mMapView.getMap();
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mCurrentMode = MyLocationConfiguration.LocationMode.NORMAL;
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// 开启定位图层
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mBaiduMap.setMyLocationEnabled(true);
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// 定位初始化
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mLocClient = new LocationClient(this);
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mLocClient.registerLocationListener(myListener);
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LocationClientOption option = new LocationClientOption();
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option.setOpenGps(true); // 打开gps
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option.setCoorType("bd09ll"); // 设置坐标类型
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option.setIsNeedAddress(true);
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option.setScanSpan(60000);
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mLocClient.setLocOption(option);
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mLocClient.start();
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/**
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* 初始化搜索模块，注册事件监听
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*/
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mSearch = GeoCoder.newInstance();
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mSearch.setOnGetGeoCodeResultListener(this);
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/**
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* 地图单击监听
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*/
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mBaiduMap.setOnMapClickListener(new BaiduMap.OnMapClickListener() {
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//获取当前单击点的坐标
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@Override
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public void onMapClick(LatLng latLng) {
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currentPt = latLng;
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// 反Geo搜索
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mSearch.reverseGeoCode(new ReverseGeoCodeOption()
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.location(currentPt));
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String info = String.format("当前经度： %f\n当前纬度：%f",
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currentPt.longitude, currentPt.latitude);
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tv_coordinates.setText(info);
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}
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@Override
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public boolean onMapPoiClick(MapPoi mapPoi) {
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return false;
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}
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});
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LatLng mapCenter = new LatLng(31.430616, 120.988327);
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MapStatus mMapStatus = new MapStatus.Builder().target(mapCenter).zoom(21).build();
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MapStatusUpdate mMapStatusUpdate = MapStatusUpdateFactory.newMapStatus(mMapStatus);
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mBaiduMap.setMapStatus(mMapStatusUpdate);
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}
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/**
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* 位置转坐标
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* @param geoCodeResult
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*/
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@Override
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public void onGetGeoCodeResult(GeoCodeResult geoCodeResult) {
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}
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/**
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* 坐标转位置
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* @param reverseGeoCodeResult
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*/
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@Override
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public void onGetReverseGeoCodeResult(ReverseGeoCodeResult reverseGeoCodeResult) {
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if (reverseGeoCodeResult == null || reverseGeoCodeResult.error != SearchResult.ERRORNO.NO_ERROR) {
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tv_location.setText("抱歉，未能找到结果");
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return;
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}
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mBaiduMap.clear();
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mBaiduMap.addOverlay(new MarkerOptions().position(reverseGeoCodeResult.getLocation())
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.icon(BitmapDescriptorFactory
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.fromResource(R.mipmap.location)));
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mBaiduMap.setMapStatus(MapStatusUpdateFactory.newLatLng(reverseGeoCodeResult
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.getLocation()));
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tv_location.setText(reverseGeoCodeResult.getAddress());
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}
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/**
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* 定位SDK监听函数
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*/
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public class MyLocationListenner implements BDLocationListener {
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@Override
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public void onReceiveLocation(BDLocation location) {
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// map view 销毁后不在处理新接收的位置
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if (location == null || mMapView == null) {
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return;
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}
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MyLocationData locData = new MyLocationData.Builder()
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.accuracy(30)//定位半径误差
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// 此处设置开发者获取到的方向信息，顺时针0-360
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.direction(100).latitude(location.getLatitude())
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.longitude(location.getLongitude()).build();
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mBaiduMap.setMyLocationData(locData);
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String info = String.format("当前经度： %f\n当前纬度：%f",
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location.getLongitude(), location.getLatitude());
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tv_location.setText(location.getAddrStr());
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tv_coordinates.setText(info);
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if (isFirstLoc) {
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isFirstLoc = false;
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LatLng ll = new LatLng(location.getLatitude(),
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location.getLongitude());
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MapStatus.Builder builder = new MapStatus.Builder();
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builder.target(ll).zoom(18.0f);
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mBaiduMap.animateMapStatus(MapStatusUpdateFactory.newMapStatus(builder.build()));
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}
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}
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public void onReceivePoi(BDLocation poiLocation) {
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}
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}
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@Override
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protected void onPause() {
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// MapView的生命周期与Activity同步，当activity挂起时需调用MapView.onPause()
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mMapView.onPause();
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super.onPause();
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}
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@Override
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protected void onResume() {
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// MapView的生命周期与Activity同步，当activity恢复时需调用MapView.onResume()
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mMapView.onResume();
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super.onResume();
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}
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@Override
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protected void onDestroy() {
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// MapView的生命周期与Activity同步，当activity销毁时需调用MapView.destroy()
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// 退出时销毁定位
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mLocClient.stop();
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// 关闭定位图层
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mBaiduMap.setMyLocationEnabled(false);
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mMapView.onDestroy();
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super.onDestroy();
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}
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}
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