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

package com.xzjmyk.pm.activity;

import android.content.Intent;
import android.support.v4.content.LocalBroadcastManager;

import com.baidu.location.BDLocation;
import com.baidu.location.BDLocationListener;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.model.LatLng;
import com.common.LogUtil;
import com.common.data.StringUtil;
import com.common.preferences.PreferenceUtils;

public class BdLocationHelper {
    public static final String UPLOCATION_ACTION = "UPLOCATION_ACTION";//更新位置时候广播数据

    private boolean locationOk;//是否定位成功
    private LatLng latLng;
    private String location;//位置信息
    private String address;//详细地址
    private String province;// 省份
    private String cityName;// 城市
    private String district;// 街道
    private String errorMessage;//定位错误信息

    private final Intent broadcast = new Intent(UPLOCATION_ACTION);//更新后广播
    private LocationClient mLocationClient = null;
    private int mFaildCount = 0;//失败次数

    public BdLocationHelper() {
        initLocation();
    }

    private void initLocation() {
        mLocationClient = new LocationClient(MyApplication.getInstance().getApplicationContext()); // 声明LocationClient类
        mLocationClient.registerLocationListener(mLocationListener); // 注册监听函数
        mLocationClient.setLocOption(getOptionByGPS());
//        requestLocation();
    }

    /**
     * 获取配置
     *
     * @return
     */
    private LocationClientOption getOptionByGPS() {
        LocationClientOption option = new LocationClientOption();
        option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy);//可选，默认高精度，设置定位模式，高精度，低功耗，仅设备
        option.setCoorType("bd09ll");//可选，默认gcj02，设置返回的定位结果坐标系
        option.setScanSpan(20 * 1000);//可选，默认0，即仅定位一次，设置发起定位请求的间隔需要大于等于1000ms才是有效的
        option.setIsNeedAddress(true);//可选，设置是否需要地址信息，默认不需要
        option.setOpenGps(true);//可选，默认false,设置是否使用gps
        option.setLocationNotify(false);//可选，默认false，设置是否当GPS有效时按照1S/1次频率输出GPS结果
        option.setIsNeedLocationDescribe(true);//可选，默认false，设置是否需要位置语义化结果，可以在BDLocation.getLocationDescribe里得到，结果类似于“在北京天安门附近”
        option.setIsNeedLocationPoiList(false);//可选，默认false，设置是否需要POI结果，可以在BDLocation.getPoiList里得到
        option.setIgnoreKillProcess(false);//可选，默认true，定位SDK内部是一个SERVICE，并放到了独立进程，设置是否在stop的时候杀死这个进程，默认不杀死
        option.SetIgnoreCacheException(false);//可选，默认false，设置是否收集CRASH信息，默认收集
        option.setEnableSimulateGps(true);//可选，默认false，设置是否需要过滤GPS仿真结果，默认需要
        option.setNeedDeviceDirect(false);
        return option;
    }

    /**
     * 获取配置
     *
     * @return
     */
    private LocationClientOption getOptionNotGPS() {
        LocationClientOption option = getOptionByGPS();
        option.setOpenGps(false);
        return option;
    }


    /**
     * 关闭定位
     **/
    public void release() {
        if (mLocationClient.isStarted()) {
            mLocationClient.stop();
        }
    }


    /**
     * 重新定位
     **/
    public void requestLocation() {
        if (mLocationClient == null) return;
        if (!mLocationClient.isStarted()) {
            mFaildCount = 0;
            mLocationClient.start();
        } else {
            mLocationClient.requestLocation();
        }
    }


    private BDLocationListener mLocationListener = new BDLocationListener() {
        @Override
        public void onReceiveLocation(BDLocation location) {
            try {
                setLocation(location);
            } catch (Exception e) {
                if (e != null)
                    log("onReceiveLocation Exception" + e.getMessage());
                clearLocation();
            }
        }
    };


    private void setLocation(BDLocation location) throws Exception {
        if (location.getLocType() == BDLocation.TypeGpsLocation// GPS定位结果
                || location.getLocType() == BDLocation.TypeNetWorkLocation//网络定位
                || location.getLocType() == BDLocation.TypeOffLineLocation//离线定位（未验证离线定位的有效性）
                ) {
            //定位成功
            locationOk = true;
            latLng = new LatLng(location.getLatitude(), location.getLongitude());
            this.location = location.getLocationDescribe();
            province = location.getProvince();
            cityName = location.getCity();
            district = location.getDistrict();
            address = location.getAddrStr();
            if (!StringUtil.isEmpty(this.location))
                PreferenceUtils.putString("bdlocation", this.location);
            if (!StringUtil.isEmpty(address))
                PreferenceUtils.putString("bdaddress", address);
            errorMessage = "";
        } else {
            //统一为定位失败
            locationOk = false;
            log("定位失败");
            if (location.getLocType() == BDLocation.TypeServerError) {
                //服务端网络定位失败，可以反馈IMEI号和大体定位时间到loc-bugs@baidu.com，会有人追查原因
                errorMessage = "服务端网络定位失败";
                log("服务端网络定位失败");
            } else if (location.getLocType() == BDLocation.TypeNetWorkException) {
                //网络不同导致定位失败，请检查网络是否通畅
                errorMessage = "网络不同导致定位失败，请检查网络是否通畅";
                log("网络不同导致定位失败，请检查网络是否通畅");
            } else if (location.getLocType() == BDLocation.TypeCriteriaException) {
                //无法获取有效定位依据导致定位失败，一般是由于手机的原因，处于飞行模式下一般会造成这种结果，可以试着重启手机
                errorMessage = "无法获取有效定位依据导致定位失败";
                log("无法获取有效定位依据导致定位失败");
            } else {
                errorMessage = "未知错误";
                log("未知错误");
            }
            if (mFaildCount < 3) {
                mFaildCount++;
                requestLocation();
                return;
            }
        }
        //发送广播
        broadcast.putExtra(UPLOCATION_ACTION, locationOk);
        LocalBroadcastManager.getInstance(MyApplication.getInstance()).sendBroadcast(broadcast);
    }

    private void log(String message) {
        LogUtil.i(message);
    }


    public String getName() {
        return StringUtil.isEmpty(location) ? "" : location;
    }


    // 获取经纬度
    public double getLongitude() {
        return latLng == null ? 1 : latLng.longitude;
    }

    // 获取经纬度
    public double getLatitude() {
        return latLng == null ? 1 : latLng.latitude;
    }

    // 获取地址详情
    public String getAddress() {
        return StringUtil.isEmpty(address) ? PreferenceUtils.getString("bdaddress") : address;
    }


    public String getProvinceName() {
        return province;
    }

    public LatLng getLocation() {
        return latLng;
    }

    public String getCityName() {
        return cityName;
    }

    public String getDistrictName() {
        return district;
    }

    public boolean locationOk() {
        return locationOk;
    }

    public String getErrorMessage() {
        return errorMessage;
    }

    public boolean isLocationUpdate() {
        return true;
    }

    private void clearLocation() {
        locationOk = false;
        latLng = null;
        location = null;
        address = null;
        province = null;
        cityName = null;
        district = null;
        errorMessage = null;
    }

}