uu-android/WeiChat/src/main/java/com/xzjmyk/pm/activity/util/BaiduMapUtil.java

package com.xzjmyk.pm.activity.util;

import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;

import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
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.MarkerOptions;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;
import com.baidu.mapapi.search.poi.PoiDetailResult;
import com.baidu.mapapi.search.poi.PoiIndoorResult;
import com.baidu.mapapi.search.poi.PoiNearbySearchOption;
import com.baidu.mapapi.search.poi.PoiResult;
import com.baidu.mapapi.search.poi.PoiSearch;
import com.baidu.mapapi.search.poi.PoiSortType;
import com.baidu.mapapi.utils.DistanceUtil;
import com.xzjmyk.pm.activity.R;

import java.text.DecimalFormat;

/**
 * 百度地图工具类（重复代码过多，放在工具类中）
 * Created by gongpm on 2016/7/15.
 */
public class BaiduMapUtil implements OnGetPoiSearchResultListener {
    private static BaiduMapUtil instence = null;
    private Handler handler;
    private PoiNearbySearchOption option;
    public static int NEAR_WHAT = 0x22;
    private int what = -1;

    private BaiduMapUtil() {
    }

    public static BaiduMapUtil getInstence() {
        if (instence == null) {
            synchronized (BaiduMapUtil.class) {
                instence = new BaiduMapUtil();
            }
        }
        return instence;
    }

    public void setMapViewPoint(MapView mapView, LatLng point) {
        setMapViewPoint(mapView, point, false);
    }

    //计算距离
    public String getDistance(LatLng a, LatLng b) {
        double distance = Math.abs(DistanceUtil.getDistance(a, b));
        DecimalFormat df = new DecimalFormat(".##");
        return df.format(distance);
    }

    //计算距离
    public double getDistanceD(LatLng a, LatLng b) {
        double distance = DistanceUtil.getDistance(a, b);
        return distance;
    }

    public String getDistance(double a1, double a2, double b1, double b2) {
        LatLng a = new LatLng(a1, a2);
        LatLng b = new LatLng(b1, b2);
        return getDistance(a, b);
    }

    //显示当前位置
    public void setMapViewPoint(MapView mapView, LatLng point, boolean isClear) {
        // 构建Marker图标
        BitmapDescriptor bitmap = BitmapDescriptorFactory.fromResource(R.drawable.icon_gcoding);
        // 构建MarkerOption，用于在地图上添加Marker
        OverlayOptions option = new MarkerOptions().position(point).icon(bitmap);
        if (isClear) mapView.getMap().clear();
        // 在地图上添加Marker，并显示
        mapView.getMap().addOverlay(option);
        mapView.showZoomControls(false);
        MapStatus mapStatus = new MapStatus.Builder().zoom(mapView.getMap().getMaxZoomLevel() - 3).target(point).build();
        MapStatusUpdate u = MapStatusUpdateFactory.newMapStatus(mapStatus);
        mapView.getMap().animateMapStatus(u);//设置为中心显示
    }

    //监听周围信息的获取 radius=0 为默认显示周围1000米
    public void getNearInfo(int radius, int pagerNum, LatLng location, PoiSearch mPoiSearch, Handler handler, int what) {
        this.handler = handler;
        this.what = what;
        if (option == null)
            option = new PoiNearbySearchOption();
        option.keyword("写字楼");
        option.sortType(PoiSortType.distance_from_near_to_far);
        option.location(location);
        if (radius != 0) {
            option.radius(radius);
        } else {
            option.radius(1000);
        }
        if (pagerNum != 0) {
            option.pageNum(pagerNum);
        } else {
            option.pageNum(1);
        }
        option.pageCapacity(20);
        mPoiSearch.setOnGetPoiSearchResultListener(this);
        mPoiSearch.searchNearby(option);
    }

    public void getLocation() {

    }

    public void getNearInfo(int radius, int pagerNum, LatLng location, Handler handler) {
        getNearInfo(radius, pagerNum, location, PoiSearch.newInstance(), handler, NEAR_WHAT);
    }

    private void setDataToHandler(SearchResult result) {
        if (handler == null) return;
        Message message = handler.obtainMessage();
        message.what = this.what;
        Bundle bundle = new Bundle();
        bundle.putParcelable("data", result);
        message.setData(bundle);
        handler.sendMessage(message);
    }

    @Override
    public void onGetPoiResult(PoiResult poiResult) {
        if (handler == null) return;
        Message message = handler.obtainMessage();
        message.what = this.what;
        Bundle bundle = new Bundle();
        bundle.putParcelable("data", poiResult);
        message.setData(bundle);
        handler.sendMessage(message);
    }

    @Override
    public void onGetPoiDetailResult(PoiDetailResult poiDetailResult) {
        setDataToHandler(poiDetailResult);
    }

    @Override
    public void onGetPoiIndoorResult(PoiIndoorResult poiIndoorResult) {
        setDataToHandler(poiIndoorResult);
    }


    /**
     * 实现实位回调监听
     */
    public class MyLocationListener implements BDLocationListener {
        public void onReceiveLocation(BDLocation location) {
            //Receive Location
            StringBuffer sb = new StringBuffer(256);
            sb.append("time : ");
            sb.append(location.getTime());//获得当前时间
            sb.append("\nerror code : ");
            sb.append(location.getLocType());//获得erro code得知定位现状
            sb.append("\nlatitude : ");
            sb.append(location.getLatitude());//获得纬度
            sb.append("\nlontitude : ");
            sb.append(location.getLongitude());//获得经度
            sb.append("\nradius : ");
            sb.append(location.getRadius());
            if (location.getLocType() == BDLocation.TypeGpsLocation) {//通过GPS定位
                sb.append("\nspeed : ");
                sb.append(location.getSpeed());//获得速度
                sb.append("\nsatellite : ");
                sb.append(location.getSatelliteNumber());
                sb.append("\ndirection : ");
                sb.append("\naddr : ");
                sb.append(location.getAddrStr());//获得当前地址
                sb.append(location.getDirection());//获得方位
            } else if (location.getLocType() == BDLocation.TypeNetWorkLocation) {//通过网络连接定位
                sb.append("\naddr : ");
                sb.append(location.getAddrStr());//获得当前地址
                //运营商信息
                sb.append("\noperationers : ");
                sb.append(location.getOperators());//获得经营商？
            }
            Log.i("BaiduLocationApiDem", sb.toString());
        }
    }
}