获取经纬度

最新推荐文章于 2025-06-26 14:52:33 发布

冲锋的麦克

最新推荐文章于 2025-06-26 14:52:33 发布

阅读量1k

点赞数

分类专栏：安卓工具类、方法

安卓工具类、方法专栏收录该内容

6 篇文章

订阅专栏

本文详细介绍了如何在不同平台和环境中获取地理位置的经纬度信息，包括网页、移动应用和后台服务的实现方法，涵盖API调用、权限设置、坐标转换等关键技术点。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

LocationUtils.class

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.util.Log;

import java.util.List;

import static android.content.ContentValues.TAG;

public class LocationUtils {

    private volatile static LocationUtils uniqueInstance;
    private LocationManager locationManager;
    private String locationProvider;
    private Location location;
    private Context mContext;

    private LocationUtils(Context context) {
        mContext = context;
        getLocation();
    }

    //采用Double CheckLock(DCL)实现单例
    public static LocationUtils getInstance(Context context) {
        if (uniqueInstance == null) {
            synchronized (LocationUtils.class) {
                if (uniqueInstance == null) {
                    uniqueInstance = new LocationUtils( context );
                }
            }
        }
        return uniqueInstance;
    }

    @SuppressLint("MissingPermission")
    private void getLocation() {
        //1.获取位置管理器
        locationManager = (LocationManager) mContext.getSystemService( Context.LOCATION_SERVICE );
        //2.获取位置提供器，GPS或是NetWork
        List<String> providers = locationManager.getProviders( true );
        if (providers.contains( LocationManager.NETWORK_PROVIDER )) {
            //如果是网络定位
            Log.d( TAG, "如果是网络定位" );
            locationProvider = LocationManager.NETWORK_PROVIDER;
        } else if (providers.contains( LocationManager.GPS_PROVIDER )) {
            //如果是GPS定位
            Log.d( TAG, "如果是GPS定位" );
            locationProvider = LocationManager.GPS_PROVIDER;
        } else {
            Log.d( TAG, "没有可用的位置提供器" );
            return;
        }
        // 需要检查权限,否则编译报错,想抽取成方法都不行,还是会报错。只能这样重复 code 了。
        if (Build.VERSION.SDK_INT >= 23 &&
                ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED &&
                ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        if (ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        //3.获取上次的位置，一般第一次运行，此值为null
        @SuppressLint("MissingPermission") Location location = locationManager.getLastKnownLocation( locationProvider );
        if (location != null) {
            setLocation( location );
        }
        // 监视地理位置变化，第二个和第三个参数分别为更新的最短时间minTime和最短距离minDistace
        locationManager.requestLocationUpdates(locationProvider, 0, 0, locationListener );
    }

    private void setLocation(Location location) {
        this.location = location;
        String address = "纬度：" + location.getLatitude() + "经度：" + location.getLongitude();
        Log.d( TAG, address );
    }

    //获取经纬度
    public Location showLocation() {
        return location;
    }

    // 移除定位监听
    @SuppressLint("MissingPermission")
    public void removeLocationUpdatesListener() {
        // 需要检查权限,否则编译不过
        if (Build.VERSION.SDK_INT >= 23 &&
                ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED &&
                ActivityCompat.checkSelfPermission( mContext, Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        if (locationManager != null) {
            uniqueInstance = null;
            locationManager.removeUpdates( locationListener );
        }
    }

    /**
     * LocationListern监听器
     * 参数：地理位置提供器、监听位置变化的时间间隔、位置变化的距离间隔、LocationListener监听器
     */

    LocationListener locationListener = new LocationListener() {

        /**
         * 当某个位置提供者的状态发生改变时
         */
        @Override
        public void onStatusChanged(String provider, int status, Bundle arg2) {

        }

        /**
         * 某个设备打开时
         */
        @Override
        public void onProviderEnabled(String provider) {

        }

        /**
         * 某个设备关闭时
         */
        @Override
        public void onProviderDisabled(String provider) {

        }

        /**
         * 手机位置发生变动
         */
        @Override
        public void onLocationChanged(Location location) {
            location.getAccuracy();//精确度
            setLocation( location );
        }
    };

}

用法：

private Location location;

location = LocationUtils.getInstance( this ).showLocation();
if (location != null) {
    String address = "纬度：" + location.getLatitude() + "经度：" + location.getLongitude();
    Log.d( "LocationUtils", address );
}