Android百度地图定位、显示用户当前位置

import com.baidu.location.LocationClientOption;

/**
 * 建造 LocationClientOption 项
 *
 * @author peter 2018-12-21 10:58
 */
public class LocationClientOptionBuilder {
 private LocationClientOption option;

 public static LocationClientOptionBuilder builder() {
  LocationClientOptionBuilder builder = new LocationClientOptionBuilder();
  builder.option = builder.initOption();
  return builder;
 }

 /**
  * 设置坐标系
  *
  * @return
  * @see CoorType
  */
 public LocationClientOptionBuilder setCoorType() {
  return setCoorType(CoorType.bd09ll);
 }

 public LocationClientOptionBuilder setCoorType(CoorType coorType) {
  this.option.setCoorType(coorType.name());
  return this;
 }

 /**
  * 连续定位
  * 可选，设置发起定位请求的间隔，int类型，单位ms
  * 如果设置为0，则代表单次定位，即仅定位一次，默认为0
  * 如果设置非0，需设置1000ms以上才有效
  *
  * @param time
  * @return
  */
 public LocationClientOptionBuilder setScanSpan(int time) {
  this.option.setScanSpan(time);
  return this;
 }

 public LocationClientOption bulid() {
  return this.option;
 }

 private LocationClientOption initOption() {
  LocationClientOption option = new LocationClientOption();
  //可选，设置定位模式，默认高精度
  //LocationMode.Hight_Accuracy：高精度；
  //LocationMode. Battery_Saving：低功耗；
  //LocationMode. Device_Sensors：仅使用设备；
  option.setLocationMode(LocationClientOption.LocationMode.Hight_Accuracy);
  //可选，设置返回经纬度坐标类型，默认GCJ02
  //GCJ02：国测局坐标；
  //BD09ll：百度经纬度坐标；
  //BD09：百度墨卡托坐标；
  //海外地区定位，无需设置坐标类型，统一返回WGS84类型坐标
//  option.setCoorType("bd09ll");

  //可选，设置发起定位请求的间隔，int类型，单位ms
  //如果设置为0，则代表单次定位，即仅定位一次，默认为0
  //如果设置非0，需设置1000ms以上才有效
//  option.setScanSpan(1000);

  //可选，设置是否使用gps，默认false
  //使用高精度和仅用设备两种定位模式的，参数必须设置为true
  option.setOpenGps(true);

  //可选，设置是否当GPS有效时按照1S/1次频率输出GPS结果，默认false
//  option.setLocationNotify(true);
  //可选，定位SDK内部是一个service，并放到进程。
//  option.setIgnoreKillProcess(true);

  //可选，设置是否收集Crash信息，默认收集，即参数为false
//  option.SetIgnoreCacheException(false);

  //可选，V7.2版本新增能力
  //如果设置了该接口，首次启动定位时，会先判断当前Wi-Fi是否超出有效期，若超出有效期，会先重新扫描Wi-Fi，然后定位
//  option.setWifiCacheTimeOut(5 * 60 * 1000);
  //可选，设置是否需要过滤GPS结果，默认需要，即参数为false
//  option.setEnableSimulateGps(false);
  return option;
 }

 /**
  * 坐标系
  */
 public enum CoorType {
  gcj02,
  bd09,
  bd09ll
 }
}

import android.content.Context;
import android.support.annotation.NonNull;
import android.util.Log;

import com.baidu.location.BDAbstractLocationListener;
import com.baidu.location.BDLocation;
import com.baidu.location.LocationClient;
import com.baidu.location.LocationClientOption;

/**
 * 百度地图定位工具类
 *
 * @author peter 2018-12-21 10:12
 */
public class BMapLocationHelper {

 private static final int LOCATION_SUCCESS = 1;
 static final int LOCATION_FAIL = -1;
 private LocationClient mLocationClient;
 private MyLocationListener myListener = new MyLocationListener();
 private LocationCallBack callBack;


 private BMapLocationHelper(LocationCallBack callBack) {

  this.callBack = callBack;
 }

 public static BMapLocationHelper create(@NonNull Context context, @NonNull LocationClientOption option, @NonNull LocationCallBack callBack) {
  BMapLocationHelper bMapLocationHelper = new BMapLocationHelper(callBack);
  LocationClient client = new LocationClient(context);
  client.setLocOption(option);
  //声明LocationClient类
  client.registerLocationListener(bMapLocationHelper.myListener);
  bMapLocationHelper.mLocationClient = client;
  return bMapLocationHelper;
 }

 /**
  * 开始定位
  */
 public void locStart() {
  mLocationClient.start();
 }

 /**
  * 停止定位
  */
 public void locStop() {
  mLocationClient.stop();
 }

 public void locReStart() {
  mLocationClient.restart();
 }

 public LocationClient getmLocationClient() {
  return mLocationClient;
 }

 /**
  * 地图定位结果
  */
 public class MyLocationListener extends BDAbstractLocationListener {
  private static final String TAG = "MyLocationListener";

  @Override
  public void onReceiveLocation(BDLocation location) {
   if (location == null) return;
   int locType = location.getLocType();
   int status = LOCATION_SUCCESS;
   if (locType != 61 && locType != 161 && locType != 66) status = LOCATION_FAIL;
   String errMsg = getLocationResultMsg(locType);
   callBack.onReceiveLocation(status, location, errMsg);
  }

  @Override
  public void onLocDiagnosticMessage(int i, int i1, String s) {
   Log.i(TAG, "onLocDiagnosticMessage: " + i + "diaType:" + i1);
   callBack.onLocDiagnosticMessage(i, i1, getLocDiagnosticMessage(i, i1));
   super.onLocDiagnosticMessage(i, i1, s);
  }
 }


 /**
  * 回调类
  */
 public abstract static class LocationCallBack {

  /**
   * 定位的结果
   *
   * @param statusCode 状态码,1:定位成功，-1定位失败
   * @param bdLocation 定位成功时返回的定位结果对象
   * @param errMsg  定位失败时的错误信息，成功时则为null
   */
  public abstract void onReceiveLocation(int statusCode, BDLocation bdLocation, String errMsg);

  /**
   * 错误的状态码
   * <a>http://lbsyun.baidu.com/index.php?title=android-locsdk/guide/addition-func/error-code</a>
   * <p>
   * 回调定位诊断信息，开发者可以根据相关信息解决定位遇到的一些问题
   *
   * @param locType   当前定位类型
   * @param diagnosticType 诊断类型（1~9）
   * @param diagnosticMessage 具体的诊断信息释义
   */
  public void onLocDiagnosticMessage(int locType, int diagnosticType, String diagnosticMessage) {
  }
 }

 /**
  * 错误的状态码
  * <a>http://lbsyun.baidu.com/index.php?title=android-locsdk/guide/addition-func/error-code</a>
  *
  * @param locType 当前定位类型
  * @return String 定位成功或失败的信息
  */
 private String getLocationResultMsg(int locType) {
  switch (locType) {
   case 61:
    return "GPS定位结果，GPS定位成功";
   case 62:
    return "无法获取有效定位依据，定位失败，请检查运营商网络或者WiFi网络是否正常开启，尝试重新请求定位";
   case 63:
    return "网络异常，没有成功向服务器发起请求，请确认当前测试手机网络是否通畅，尝试重新请求定位";
   case 66:
    return "离线定位结果。通过requestOfflineLocaiton调用时对应的返回结果";
   case 67:
    return "离线定位失败";
   case 161:
    return "网络定位结果，网络定位成功";
   case 162:
    return "请求串密文解析失败，一般是由于客户端SO文件加载失败造成，请严格参照开发指南或demo开发，放入对应SO文件";
   case 167:
    return "服务端定位失败，请您检查是否禁用获取位置信息权限，尝试重新请求定位";
   case 505:
    return "AK不存在或者非法，请按照说明文档重新申请AK";
   default:
    return "";
  }
 }

 /**
  * @param locType  当前定位类型
  * @param diagnosticType 诊断类型（1~9）
  * @return String
  */
 private String getLocDiagnosticMessage(int locType, int diagnosticType) {

  switch (locType) {
   case 62:
    switch (diagnosticType) {
     case 4:
      return "定位失败，无法获取任何有效定位依据";
     case 5:
      return "定位失败，无法获取有效定位依据，请检查运营商网络或者Wi-Fi网络是否正常开启，尝试重新请求定位";
     case 6:
      return "定位失败，无法获取有效定位依据，请尝试插一张sim卡或打开Wi-Fi重试";
     case 7:
      return "定位失败，飞行模式下无法获取有效定位依据，请关闭飞行模式重试";
     case 9:
      return "定位失败，无法获取任何有效定位依据";
    }
   case 67:
    if (diagnosticType == 3) return "定位失败，请您检查您的网络状态";

   case 161:
    switch (diagnosticType) {
     case 1:
      return "定位失败，建议您打开GPS";
     case 2:
      return "定位失败，建议您打开Wi-Fi";
    }
   case 167:
    if (diagnosticType == 8) return "定位失败，请确认您定位的开关打开状态，是否赋予APP定位权限";

   default:
    return "未知错误";
  }
 }
}

import android.content.Context;
import android.support.annotation.NonNull;
import android.util.Log;

import com.baidu.location.BDLocation;
import com.baidu.location.LocationClientOption;
import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.MapStatus;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MyLocationData;
import com.baidu.mapapi.model.LatLng;
import com.yikesong.sender.util.ToastUtils;

/**
 * 显示用户当前位置到地图上
 *
 * @author peter 2018-12-21 16:27
 */
public class UserLocation extends BMapLocationHelper.LocationCallBack {
 private Context context;
 private boolean isFirstLoc = true;
 private BaiduMap map;
 private int mCurrentDirection = 0;
 private BMapLocationHelper helper;
 private static final String TAG = "UserLocation";

 public UserLocation(@NonNull Context context, @NonNull BaiduMap map) {
  this.context = context;
  this.map = map;
  init();
 }

 private void init() {
  map.setMapType(BaiduMap.MAP_TYPE_NORMAL);
  //开启定位图层
  map.setMyLocationEnabled(true);
 }

 /**
  * 在地图上显示用户的当前位置
  */
 public void showUserLocationOnMap() {
  if (helper == null) {
   LocationClientOption option = LocationClientOptionBuilder
     .builder()
     .setCoorType()
     .bulid();
   helper = BMapLocationHelper.create(this.context, option, this);
  }
  helper.locStart();
 }

 @Override
 public void onReceiveLocation(int statusCode, BDLocation bdLocation, String errMsg) {
  if (statusCode == BMapLocationHelper.LOCATION_FAIL) {
   ToastUtils.toastInfo(errMsg, context);
   Log.i(TAG, "onReceiveLocation: " + errMsg);
   return;
  }
  MyLocationData locData = new MyLocationData.Builder()
    .accuracy(bdLocation.getRadius())
    // 此处设置开发者获取到的方向信息，顺时针0-360
    .direction(mCurrentDirection).latitude(bdLocation.getLatitude())
    .longitude(bdLocation.getLongitude()).build();
  map.setMyLocationData(locData);
  if (isFirstLoc) {
   isFirstLoc = false;
   LatLng centerPoint = new LatLng(bdLocation.getLatitude(),
     bdLocation.getLongitude());
   MapStatus mapStatus = new MapStatus.Builder()
     .target(centerPoint) //设置中心点
     .zoom(18f)//设置缩放级别
     .build();
   map.animateMapStatus(MapStatusUpdateFactory.newMapStatus(mapStatus));
  }
  if (helper != null) helper.locStop();
 }

 @Override
 public void onLocDiagnosticMessage(int locType, int diagnosticType, String diagnosticMessage) {
  super.onLocDiagnosticMessage(locType, diagnosticType, diagnosticMessage);
 }

 public BMapLocationHelper getHelper() {
  return helper;
 }

 public BaiduMap getMap() {
  return map;
 }

 public int getmCurrentDirection() {
  return mCurrentDirection;
 }
}