（转）Android：原生的手机获取经纬度得到当前位置

（转）Android：原生的手机获取经纬度得到当前位置

ElvisDu 于 2021-12-13 11:22:00 发布 1702 收藏

分类专栏： Android进阶 文章标签： android android studio java

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本文链接：https://blog.csdn.net/duyiqun/article/details/121901452

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原地址：Android：原生的手机获取经纬度得到当前位置_谢桥的博客-CSDN博客_android 获取经纬度

这是一套完整的代码，模拟器与真机调试可用

1.首先得注册权限

android:name="android.permission.ACCESS_COARSE_LOCATION"
android:name="android.permission.ACCESS_FINE_LOCATION"

1.1其次最重要的是，申请权限，一直真机调试不成功，折磨死我啦，放在protected void onCreate方法就可以

if(ContextCompat.checkSelfPermission(EventsReportedActivity.this, Manifest.permission.ACCESS_FINE_LOCATION)
        != PackageManager.PERMISSION_GRANTED){//未开启定位权限
    //开启定位权限,200是标识码
    ActivityCompat.requestPermissions(EventsReportedActivity.this,new String[]{Manifest.permission.ACCESS_FINE_LOCATION},200);
}else{
    initLocation();//初始化定位信息
    Toast.makeText(EventsReportedActivity.this,"已开启定位权限", Toast.LENGTH_LONG).show();
}

1.2这边再回调一下

@Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        switch (requestCode){
            case 200://刚才的识别码
                if(grantResults[0] == PackageManager.PERMISSION_GRANTED){//用户同意权限,执行我们的操作
                    initLocation();//开始定位
                }else{//用户拒绝之后,当然我们也可以弹出一个窗口,直接跳转到系统设置页面
                    Toast.makeText(EventsReportedActivity.this,"未开启定位权限,请手动到设置去开启权限",Toast.LENGTH_LONG).show();
                }
                break;
            default:break;
        }
    }

写到这里差不多就结束啦，

2.获取经纬度

2.1工具类

package com.skyinfor.szls.Util;
import android.Manifest;
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.util.Log;
import androidx.core.app.ActivityCompat;
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;
    }
    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
        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
    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);
        }
    };
}

2.2调用

private void initLocation(){
        Location location = LocationUtils.getInstance( EventsReportedActivity.this ).showLocation();
        if (location != null) {
            String address = "纬度：" + location.getLatitude() + "经度：" + location.getLongitude();
            Log.d( "FLY.LocationUtils", address );
            //text_location.setText( address );
            text_location.setText(  getAddress(location.getLongitude(),location.getLatitude()));
        }
    }

3.转为具体地址

3.1方法

public String getAddress(double lnt, double lat) {
        Geocoder geocoder = new Geocoder(EventsReportedActivity.this);
        boolean falg = geocoder.isPresent();
        Log.e("the falg is " + falg,"the falg is ");
        StringBuilder stringBuilder = new StringBuilder();
        try {
            //根据经纬度获取地理位置信息---这里会获取最近的几组地址信息，具体几组由最后一个参数决定
            List<Address> addresses = geocoder.getFromLocation(lat, lnt, 1);
            if (addresses.size() > 0) {
                Address address = addresses.get(0);
                for (int i = 0; i < address.getMaxAddressLineIndex(); i++) {
                    //每一组地址里面还会有许多地址。这里我取的前2个地址。xxx街道-xxx位置
                    if (i == 0) {
                        stringBuilder.append(address.getAddressLine(i)).append("-");
                    }
                    if (i == 1) {
                        stringBuilder.append(address.getAddressLine(i));
                        break;
                    }
                }
                //stringBuilder.append(address.getCountryName()).append("");//国家
                stringBuilder.append(address.getAdminArea()).append("");//省份
                stringBuilder.append(address.getLocality()).append("");//市
                stringBuilder.append(address.getFeatureName()).append("");//周边地址
//                stringBuilder.append(address.getCountryCode()).append("_");//国家编码
//                stringBuilder.append(address.getThoroughfare()).append("_");//道路
                Log.d("thistt", "地址信息--->" + stringBuilder);
            }
        } catch (Exception e) {
            Log.d("获取经纬度地址异常","");
            e.printStackTrace();
        }
        return stringBuilder.toString();
    }

3.2调用

String Address = getAddress(location.getLongitude(),location.getLatitude());

 

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