package com.zhaoyang.driver.utils;
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import android.annotation.SuppressLint;
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import android.content.Context;
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import android.location.Location;
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import android.location.LocationListener;
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import android.location.LocationManager;
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import android.os.Bundle;
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import java.util.List;
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/**
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* Created by Administrator on 2018/4/17.
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* 获取用户的地理位置
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*/
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public class GPSUtils {
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private static GPSUtils instance;
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private Context mContext;
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private LocationManager locationManager;
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private GPSUtils(Context context) {
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this.mContext = context;
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}
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public static GPSUtils getInstance(Context context) {
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if (instance == null) {
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instance = new GPSUtils(context);
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}
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return instance;
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}
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/**
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* 获取经纬度
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*
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* @return
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*/
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public String getLngAndLat(OnLocationResultListener onLocationResultListener) {
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double latitude = 0.0;
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double longitude = 0.0;
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mOnLocationListener = onLocationResultListener;
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String locationProvider = null;
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locationManager = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE);
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//获取所有可用的位置提供器
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List<String> providers = locationManager.getAllProviders();
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// if (providers.contains(LocationManager.GPS_PROVIDER)) {
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// //如果是GPS
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// locationProvider = LocationManager.GPS_PROVIDER;
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// } else if (providers.contains(LocationManager.NETWORK_PROVIDER)) {
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// //如果是Network
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// locationProvider = LocationManager.NETWORK_PROVIDER;
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// } else {
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// Intent i = new Intent();
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// i.setAction(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
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// mContext.startActivity(i);
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// return null;
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// }
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Location bestLocation = null;
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for (String provider : providers) {
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@SuppressLint("MissingPermission")
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Location l = locationManager.getLastKnownLocation(provider);
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if (l == null) {
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continue;
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}
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if (bestLocation == null || l.getAccuracy() < bestLocation.getAccuracy()) {
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// Found best last known location: %s", l);
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bestLocation = l;
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}
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}
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if (bestLocation != null) {
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//不为空,显示地理位置经纬度
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if (mOnLocationListener != null) {
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mOnLocationListener.onLocationResult(bestLocation);
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}
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}
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//监视地理位置变化
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// locationManager.requestLocationUpdates(locationProvider, 3000, 1, locationListener); //todo 关闭连续定位
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return null;
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}
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public LocationListener locationListener = new LocationListener() {
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// 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
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@Override
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public void onStatusChanged(String provider, int status, Bundle extras) {
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}
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// Provider被enable时触发此函数，比如GPS被打开
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@Override
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public void onProviderEnabled(String provider) {
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}
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// Provider被disable时触发此函数，比如GPS被关闭
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@Override
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public void onProviderDisabled(String provider) {
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}
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//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
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@Override
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public void onLocationChanged(Location location) {
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if (mOnLocationListener != null) {
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mOnLocationListener.OnLocationChange(location);
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}
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}
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};
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public void removeListener() {
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locationManager.removeUpdates(locationListener);
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}
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private OnLocationResultListener mOnLocationListener;
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public interface OnLocationResultListener {
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void onLocationResult(Location location);
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void OnLocationChange(Location location);
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}
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}
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