Android原生GPS和网络定位工具类

在应用开发中我们常常需要网络获取位置的方法，这里做一个工具类的封装，使用的是Android原生定位，包含两种方式，一种是原生GPS一种是网络定位的封装实现：

工具类代码如下所示：
package com.example.andyyuan.apnapplication.util;

import android.Manifest;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.GpsSatellite;
import android.location.GpsStatus;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationProvider;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
import android.widget.Toast;

import java.util.Iterator;
import java.util.List;
import java.util.Locale;

/**
 * Created by AndyYuan on 2019/2/26.
 * Created time at 2019/2/26.
 */

//@SuppressLint("MissingPermission")
class GPSUtils {

    private static LocationManager mLocationManager;

    private static final String TAG = "GPSUtils";

    private static Location mLocation = null;

    private static Activity mContext;

    public GPSUtils(Activity context) {
        this.mContext = context;
        mLocationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);

        // 判断GPS是否正常启动
        if (!mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            Toast.makeText(context, "请开启GPS导航...", Toast.LENGTH_SHORT).show();
            // 返回开启GPS导航设置界面

            Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            context.startActivityForResult(intent, 0);
            return;
        }

        // 为获取地理位置信息时设置查询条件
        String bestProvider = mLocationManager.getBestProvider(getCriteria(), true);
        // 获取位置信息
        // 如果不设置查询要求，getLastKnownLocation方法传人的参数为LocationManager.GPS_PROVIDER
        if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            // TODO: Consider calling
            //    ActivityCompat#requestPermissions
            // here to request the missing permissions, and then overriding
            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
            //                                          int[] grantResults)
            // to handle the case where the user grants the permission. See the documentation
            // for ActivityCompat#requestPermissions for more details.
            return;
        }
        Location location = mLocationManager.getLastKnownLocation(bestProvider);
//        getLocationData(location);
        mLocation = location;
        // 监听状态
//        mLocationManager.addGpsStatusListener(listener);

        // 绑定监听，有4个参数
        // 参数1，设备：有GPS_PROVIDER和NETWORK_PROVIDER两种
        // 参数2，位置信息更新周期，单位毫秒
        // 参数3，位置变化最小距离：当位置距离变化超过此值时，将更新位置信息
        // 参数4，监听
        // 备注：参数2和3，如果参数3不为0，则以参数3为准；参数3为0，则通过时间来定时更新；两者为0，则随时刷新

        // 1秒更新一次，或最小位移变化超过1米更新一次；
        // 注意：此处更新准确度非常低，推荐在service里面启动一个Thread，在run中sleep(10000);然后执行handler.sendMessage(),更新位置
        mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 1, locationListener);
    }

    /**
     * 返回查询条件
     *
     * @return
     */
    private static Criteria getCriteria() {
        Criteria criteria = new Criteria();
        // 设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        // 设置是否要求速度
        criteria.setSpeedRequired(false);
        // 设置是否允许运营商收费
        criteria.setCostAllowed(false);
        // 设置是否需要方位信息
        criteria.setBearingRequired(false);
        // 设置是否需要海拔信息
        criteria.setAltitudeRequired(false);
        // 设置对电源的需求
        criteria.setPowerRequirement(Criteria.POWER_LOW);
        return criteria;
    }


    /**
     * @return Location--->getLongitude()获取经度/getLatitude()获取纬度
     */
    public static Location getLocation() {
        if (mLocation == null) {
            Log.e("GPSUtils", "setLocationData: 获取当前位置信息为空");
            return null;
        }
        return mLocation;
    }

    public static String getLocalCity() {
        if (mLocation == null) {
            Log.e("GPSUtils", "getLocalCity: 获取城市信息为空");
            return "";
        }
        List<Address> result = getAddress(mLocation);

        String city = "";
        if (result != null && result.size() > 0) {
            city = result.get(0).getLocality();//获取城市
        }
        return city;
    }

    public static String getAddressStr() {
        if (mLocation == null) {
            Log.e("GPSUtils", "getAddressStr: 获取详细地址信息为空");
            return "";
        }
        List<Address> result = getAddress(mLocation);

        String address = "";
        if (result != null && result.size() > 0) {
            address = result.get(0).getAddressLine(0);//获取详细地址
        }
        return address;
    }

    // 位置监听
    private static LocationListener locationListener = new LocationListener() {

        //位置信息变化时触发
        public void onLocationChanged(Location location) {
            mLocation = location;
            Log.i(TAG, "时间：" + location.getTime());
            Log.i(TAG, "经度：" + location.getLongitude());
            Log.i(TAG, "纬度：" + location.getLatitude());
            Log.i(TAG, "海拔：" + location.getAltitude());
        }

        //GPS状态变化时触发
        public void onStatusChanged(String provider, int status, Bundle extras) {
            switch (status) {
                // GPS状态为可见时
                case LocationProvider.AVAILABLE:
                    Log.i(TAG, "当前GPS状态为可见状态");
                    break;
                // GPS状态为服务区外时
                case LocationProvider.OUT_OF_SERVICE:
                    Log.i(TAG, "当前GPS状态为服务区外状态");
                    break;
                // GPS状态为暂停服务时
                case LocationProvider.TEMPORARILY_UNAVAILABLE:
                    Log.i(TAG, "当前GPS状态为暂停服务状态");
                    break;
            }
        }

        //GPS开启时触发
        public void onProviderEnabled(String provider) {
            if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                // TODO: Consider calling
                //    ActivityCompat#requestPermissions
                // here to request the missing permissions, and then overriding
                //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                //                                          int[] grantResults)
                // to handle the case where the user grants the permission. See the documentation
                // for ActivityCompat#requestPermissions for more details.
                return;
            }
            Location location = mLocationManager.getLastKnownLocation(provider);
            mLocation = location;
        }

        //GPS禁用时触发
        public void onProviderDisabled(String provider) {
            mLocation = null;
        }
    };

    // 获取地址信息
    private static List<Address> getAddress(Location location) {
        List<Address> result = null;
        try {
            if (location != null) {
                Geocoder gc = new Geocoder(mContext, Locale.getDefault());
                result = gc.getFromLocation(location.getLatitude(),
                        location.getLongitude(), 1);
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result;
    }


    // 状态监听
    GpsStatus.Listener listener = new GpsStatus.Listener() {
        public void onGpsStatusChanged(int event) {
            switch (event) {
                // 第一次定位
                case GpsStatus.GPS_EVENT_FIRST_FIX:
                    Log.i(TAG, "第一次定位");
                    break;
                // 卫星状态改变
                case GpsStatus.GPS_EVENT_SATELLITE_STATUS:
                    Log.i(TAG, "卫星状态改变");
                    if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                        // TODO: Consider calling
                        //    ActivityCompat#requestPermissions
                        // here to request the missing permissions, and then overriding
                        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
                        //                                          int[] grantResults)
                        // to handle the case where the user grants the permission. See the documentation
                        // for ActivityCompat#requestPermissions for more details.
                        return;
                    }
                    GpsStatus gpsStatus = mLocationManager.getGpsStatus(null);
                    // 获取卫星颗数的默认最大值
                    int maxSatellites = gpsStatus.getMaxSatellites();
                    // 创建一个迭代器保存所有卫星
                    Iterator<GpsSatellite> iters = gpsStatus.getSatellites()
                            .iterator();
                    int count = 0;
                    while (iters.hasNext() && count <= maxSatellites) {
                        GpsSatellite s = iters.next();
                        count++;
                    }
                    System.out.println("搜索到：" + count + "颗卫星");
                    break;
                // 定位启动
                case GpsStatus.GPS_EVENT_STARTED:
                    Log.i(TAG, "定位启动");
                    break;
                // 定位结束
                case GpsStatus.GPS_EVENT_STOPPED:
                    Log.i(TAG, "定位结束");
                    break;
            }
        }
    };


    /**
     * 从网络上获取位置信息
     */
    public void queryGpsInfoFromInternet() {
        String locationInfo = getLngAndLatWithNetwork();
        if (locationInfo != null) {
            Toast.makeText(mContext, "位置信息为" + locationInfo, Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(mContext, "网络获取的位置信息也为空！", Toast.LENGTH_SHORT).show();
        }
    }

    //从网络获取经纬度
    public String getLngAndLatWithNetwork() {
        double latitude = 0.0;
        double longitude = 0.0;
        LocationManager locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
        if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
            return "没有网络Internet获取权限";
        }
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, locationListenerByNetWork);
        Location location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
        if (location != null) {
            latitude = location.getLatitude();
            longitude = location.getLongitude();
        }
        System.out.println("经度：" + longitude + ", 纬度：" + latitude);
        return "经度：" + longitude + ", 纬度：" + latitude;
    }


    //位置信息设置的有监听，实时更新位置信息
    LocationListener locationListenerByNetWork = new LocationListener() {

        double latitudeChangs = 0.0;
        double longitudeChangs = 0.0;

        // Provider的状态在可用、暂时不可用和无服务三个状态直接切换时触发此函数
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {

        }

        // Provider被enable时触发此函数，比如GPS被打开
        @Override
        public void onProviderEnabled(String provider) {

        }

        // Provider被disable时触发此函数，比如GPS被关闭
        @Override
        public void onProviderDisabled(String provider) {

        }

        //当坐标改变时触发此函数，如果Provider传进相同的坐标，它就不会被触发
        @Override
        public void onLocationChanged(Location location) {
            if (location != null) {
                latitudeChangs = location.getLatitude();
                longitudeChangs = location.getLongitude();
                System.out.println("位置已经更新，经度" + longitudeChangs + ", 纬度:" + latitudeChangs);
                Toast.makeText(mContext, "位置已经更新，经度" + latitudeChangs + ", 纬度:" + longitudeChangs, Toast.LENGTH_SHORT).show();
            }
        }
    };

    /**
     * 返回查询条件
     *
     * @return
     */
    private static Criteria getCriteriaWithnetwork() {
        Criteria criteria = new Criteria();
        // 设置定位精确度 Criteria.ACCURACY_COARSE比较粗略，Criteria.ACCURACY_FINE则比较精细
        criteria.setAccuracy(Criteria.ACCURACY_FINE);
        // 设置是否要求速度
        criteria.setSpeedRequired(false);
        // 设置是否允许运营商收费
        criteria.setCostAllowed(false);
        // 设置是否需要方位信息
        criteria.setBearingRequired(false);
        // 设置是否需要海拔信息
        criteria.setAltitudeRequired(false);
        // 设置对电源的需求
        criteria.setPowerRequirement(Criteria.POWER_LOW);
        return criteria;
    }

}