获取当前位置的坐标

我会带着你远行 2022-06-11 00:23 301阅读 0赞

**运行截图**  
![这里写图片描述][SouthEast]  
**MainActivity.java代码**

package lbstest.example.com.lbs;
    
    import android.Manifest;
    import android.content.Context;
    import android.content.pm.PackageManager;
    import android.location.Criteria;
    import android.location.Location;
    import android.location.LocationListener;
    import android.location.LocationManager;
    import android.os.Bundle;
    import android.support.v4.app.ActivityCompat;
    import android.support.v7.app.AppCompatActivity;
    import android.util.Log;
    import android.widget.TextView;
    
    public class Main2Activity extends AppCompatActivity {
        
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main2);
            LocationManager locationManager;
            String serviceName = Context.LOCATION_SERVICE;
            locationManager = (LocationManager) getSystemService(serviceName);
            Criteria criteria = new Criteria();
            criteria.setAccuracy(Criteria.ACCURACY_FINE); //设置精确度
            criteria.setAltitudeRequired(false); //设置高度
            criteria.setBearingRequired(false); //设置轴承
            criteria.setCostAllowed(true); //容许成本
            criteria.setPowerRequirement(Criteria.POWER_LOW);
            String provider = locationManager.getBestProvider(criteria, true);
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 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 = locationManager.getLastKnownLocation(provider);
            updateWithNewLocation(location);
            locationManager.requestLocationUpdates(provider,2000,10, locationListener);
        }
    
    
        private void updateWithNewLocation(Location location) {
            String latLongString;
            TextView myLocationText;
            myLocationText = (TextView) findViewById(R.id.myLocationText);
            if (location != null){
                double lat = location.getAltitude();
                double lng = location.getLongitude();
                latLongString = "纬度:"+lat+"\n经度:"+lng;
            }else {
                latLongString = "获取地理信息失败";
            }
            Log.d("Main2",latLongString);
            myLocationText.setText("当前地理坐标是:\n"+latLongString);
        }
        private final LocationListener locationListener = new LocationListener() {
            @Override
            public void onLocationChanged(Location location) {
                updateWithNewLocation(location);
            }
    
            @Override
            public void onStatusChanged(String provider, int status, Bundle extras) {
                updateWithNewLocation(null);
            }
    
            @Override
            public void onProviderEnabled(String provider) {
    
            }
    
            @Override
            public void onProviderDisabled(String provider) {
    
            }
        };
    }

**activity\_main.xml 代码**

<?xml version="1.0" encoding="utf-8"?>
    <android.support.constraint.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="lbstest.example.com.lbs.Main2Activity">
    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/myLocationText"
        />
    </android.support.constraint.ConstraintLayout>

**AndroidManifest.xml 代码**

<?xml version="1.0" encoding="utf-8"?>
    <manifest xmlns:android="http://schemas.android.com/apk/res/android"
        package="lbstest.example.com.lbs">
    
        <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
        <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
        <uses-permission android:name="android.permission.READ_PHONE_STATE" />
        <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
        <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
        <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
        <uses-permission android:name="android.permission.WAKE_LOCK" />
        <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
        <uses-permission android:name="android.permission.INTERNET" />
    
        <application
            android:allowBackup="true"
            android:icon="@mipmap/ic_launcher"
            android:label="@string/app_name"
            android:roundIcon="@mipmap/ic_launcher_round"
            android:supportsRtl="true"
            android:theme="@style/AppTheme">
            <meta-data
                android:name="com.baidu.lbsapi.API_KEY"
                android:value="PsWuZ62gs3LoEIGjCUavpkehWynGGodD" />
    
            <activity android:name=".Main2Activity">
                <intent-filter>
                    <action android:name="android.intent.action.MAIN" />
    
                    <category android:name="android.intent.category.LAUNCHER" />
                </intent-filter>
            </activity>
    
            <service
                android:name="com.baidu.location.f"
                android:enabled="true"
                android:process=":remote"></service>
    
    
        </application>
    
    </manifest>

文件百度网盘地址:[pushMessage][]

[SouthEast]: /images/20220611/6cece561146f4aaebb21c4e9e6246196.png
[pushMessage]: http://pan.baidu.com/s/1dFF205V