Android实现获取经纬度，位置代码demo

xml文件，在此实现demo未使用到三个textView，需要自己在下面的MainActivity文件修改一下代码
此实现的是使用LocationManager.FUSED_PROVIDER融合定位实现高精度获取经纬度的代码，是在

https://blog.csdn.net/yuran06/article/details/123802511?spm=1001.2014.3001.5506

代码上进行修改，特此感谢

代码两种实现情况，删除MainActivity以下代码：

 mLocationInfo = location.toString();
 mHandler.sendEmptyMessage(MSG_REFRESH_UI);
 Log.d("MainActivity", "onLocationChanged: location " + location.toString());

Handler mHandler = new Handler(new Handler.Callback() {
@Override
public boolean handleMessage(@NonNull Message msg) {
    if(msg.what == MSG_REFRESH_UI){
        refreshUI();
     }
        return false;
     }
});
private void refreshUI(){
    lat.setText("Location：" + mLocationInfo);
}

即可以实现普通精度获取经纬度，位置demo


xml文件

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">


    <Button
        android:id="@+id/bt_location"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="Click to get position"
        android:gravity="center_horizontal"
        tools:ignore="MissingConstraints" />

    <TextView
        android:id="@+id/tv_latitude"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text=""
        android:textColor="@color/black"
        app:layout_constraintBottom_toTopOf="@+id/tv_longitude"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />
    <TextView
        android:id="@+id/tv_longitude"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="经度"
        android:textColor="@color/black"
        app:layout_constraintBottom_toTopOf="@+id/tv_nowAddress"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        android:visibility="gone"
        app:layout_constraintTop_toBottomOf="@id/tv_latitude" />

    <TextView
        android:id="@+id/tv_nowAddress"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="当前位置"
        android:visibility="gone"
        android:textColor="@color/black"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintLeft_toLeftOf="parent"
        app:layout_constraintRight_toRightOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

MainActivity类：

package com.example.getlocation;

import static android.location.LocationRequest.PASSIVE_INTERVAL;

import androidx.annotation.NonNull;
import androidx.annotation.RequiresApi;
import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;
import androidx.core.util.Preconditions;

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.Context;
import android.content.pm.PackageManager;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.location.LocationRequest;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.View;
import android.view.accessibility.AccessibilityNodeInfo;
import android.widget.Button;
import android.widget.TextView;

import com.google.android.gms.location.LocationServices;

import java.io.IOException;
import java.util.List;
import java.util.Locale;
import java.util.concurrent.Executor;

public class MainActivity extends AppCompatActivity implements LocationListener {

    private Button bt;


    // 定义TextView
    private TextView nowAddress;
    private TextView lat;
    private TextView lon;
    // 定义双精度类型的经纬度
    private Double longitude,latitude;
    // 定义位置管理器
    private LocationManager locationManager;
    private String mLocationInfo;
    private static final  int MSG_REFRESH_UI = 1000;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 得到对应视图ID
        nowAddress = findViewById(R.id.tv_nowAddress);
        lat = findViewById(R.id.tv_latitude);
        lon = findViewById(R.id.tv_longitude);

        bt=findViewById(R.id.bt_location);

        // 判断当前是否拥有使用GPS的权限
        if (ActivityCompat.checkSelfPermission(MainActivity.this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)
        {
            // 申请权限
            ActivityCompat.requestPermissions(MainActivity.this, new String[] {Manifest.permission.ACCESS_FINE_LOCATION}, 100);
        }

        bt.setOnClickListener(new View.OnClickListener(){

            @RequiresApi(api = Build.VERSION_CODES.S)
            @Override
            public void onClick(View v) {
                getLocation();
                Log.d("MainActivity","你点击了");
            }
        });


//        getLocation();
        /*
        或者这样子也是可以的
        // 获取当前位置管理器
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        // 启动位置请求
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, MainActivity.this);
        */
    }

    private static final long LOCATION_UPDATE_MIN_TIME_INTERVAL_MILLIS = 1000;
    private static final Executor DIRECT_EXECUTOR = Runnable::run;
    @RequiresApi(api = Build.VERSION_CODES.S)
    @SuppressLint("MissingPermission")
    private void getLocation() {
        // 获取当前位置管理器
        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        // 启动位置请求
        // LocationManager.GPS_PROVIDER GPS定位
        // LocationManager.NETWORK_PROVIDER 网络定位
        // LocationManager.PASSIVE_PROVIDER 被动接受定位信息
        LocationRequest.Builder locationRequest = new LocationRequest.Builder(LOCATION_UPDATE_MIN_TIME_INTERVAL_MILLIS).setMaxUpdates(1);
        locationRequest.setQuality(LocationRequest.QUALITY_HIGH_ACCURACY);
        locationRequest.build();
        //requestLocationUpdates()第一个参数是String Provider；第二个参数是位置更新时间（以毫秒为单位）；第三个参数是位置更新的最小距离间隔（以米为单位）
         locationManager.requestLocationUpdates(LocationManager.FUSED_PROVIDER, locationRequest.build(),DIRECT_EXECUTOR, MainActivity.this);

    }


    // 当位置改变时执行，除了移动设置距离为 0时
    @Override
    public void onLocationChanged(@NonNull Location location) {

        mLocationInfo = location.toString();
        mHandler.sendEmptyMessage(MSG_REFRESH_UI);
        Log.d("MainActivity", "onLocationChanged: location " + location.toString());
        // 获取当前纬度
        /*latitude = location.getLatitude();
        // 获取当前经度
        longitude = location.getLongitude();
        lat.setText("Latitude：" + latitude);
        lon.setText("Longitude：" + longitude);
        // 定义位置解析
        Geocoder geocoder = new Geocoder(MainActivity.this, Locale.getDefault());
        try {
            // 获取经纬度对于的位置
            // getFromLocation(纬度, 经度, 最多获取的位置数量)
            List<Address> addresses = geocoder.getFromLocation(latitude, longitude, 2);
            // 得到第一个经纬度位置解析信息
            Address address = addresses.get(0);
            // 获取到详细的当前位置
            // Address里面还有很多方法你们可以自行实现去尝试。比如具体省的名称、市的名称...
            String info = address.getAddressLine(0) + // 获取国家名称
                    address.getAddressLine(1) + // 获取省市县(区)
                    address.getAddressLine(2);  // 获取镇号(地址名称)
            // 赋值
            nowAddress.setText(info);
        } catch (IOException e) {
            e.printStackTrace();
        }
        // 移除位置管理器
        // 需要一直获取位置信息可以去掉这个
        //locationManager.removeUpdates(this); */
        locationManager.removeUpdates(this);
    }


    Handler mHandler = new Handler(new Handler.Callback() {
        @Override
        public boolean handleMessage(@NonNull Message msg) {
            if(msg.what == MSG_REFRESH_UI){
                refreshUI();
            }
            return false;
        }
    });
    private void refreshUI(){
        lat.setText("Location：" + mLocationInfo);
    }
    // 当前定位提供者状态
    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {
        Log.e("onStatusChanged", provider);
    }

    // 任意定位提高者启动执行
    @Override
    public void onProviderEnabled(@NonNull String provider) {
        Log.e("onProviderEnabled", provider);
    }

    // 任意定位提高者关闭执行
    @Override
    public void onProviderDisabled(@NonNull String provider) {
        Log.e("onProviderDisabled", provider);
    }
}

申请权限androidmanifest.xml文件

<!-- 网络权限 -->
    <uses-permission android:name="android.permission.INTERNET" />
    <!-- 用于进行网络定位 -->
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
    <!-- 用于访问GPS定位 -->
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <!-- 用于获取wifi的获取权限，wifi信息会用来进行网络定位 -->
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

原文链接：https://blog.csdn.net/qq_43722933/article/details/124799468

你可能也喜欢