Android 获取经纬度同时获取当前具体城市信息 「爱情、让人受尽委屈。」 2022-05-15 05:45 309阅读 0赞 **本博客内容** 1. 获取经纬度,显示到界面 2. 获取城市信息,通过吐司显示。如宁夏回族自治区银川市… **具体代码** 1. AndroidManifest.xml <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> 1. Main2Activity.java package com.example.tnt.gps; import android.Manifest; import android.content.Context; import android.content.pm.PackageManager; import android.location.Address; import android.location.Criteria; import android.location.Geocoder; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.support.v4.app.ActivityCompat; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.widget.TextView; import android.widget.Toast; import java.util.List; 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); // String provider = LocationManager.GPS_PROVIDER; // String provider = "gps"; Criteria criteria = new Criteria(); criteria.setAccuracy(Criteria.ACCURACY_FINE); criteria.setAltitudeRequired(false); criteria.setBearingRequired(false); criteria.setCostAllowed(true); 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 final LocationListener locationListener = new LocationListener() { public void onLocationChanged(Location location) { updateWithNewLocation(location); } public void onProviderDisabled(String provider) { updateWithNewLocation(null); } public void onProviderEnabled(String provider) { } public void onStatusChanged(String provider, int status, Bundle extras) { } }; private void updateWithNewLocation(Location location) { String latLongString; TextView myLocationText; myLocationText = findViewById(R.id.myLocationText); // try { // Thread.sleep(0);//因为真机获取gps数据需要一定的时间,为了保证获取到,采取系统休眠的延迟方法 // } catch (InterruptedException e) { // e.printStackTrace(); // throw new RuntimeException(e); // } if (location != null) { double lat = location.getLatitude(); double lng = location.getLongitude(); Geocoder geocoder=new Geocoder(this); List places = null; try { places = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 5); Toast.makeText(Main2Activity.this, places.size()+"", Toast.LENGTH_LONG).show(); System.out.println(places.size()+""); } catch (Exception e) { e.printStackTrace(); } String placename = ""; if (places != null && places.size() > 0) { // placename=((Address)places.get(0)).getLocality(); //一下的信息将会具体到某条街 //其中getAddressLine(0)表示国家,getAddressLine(1)表示精确到某个区,getAddressLine(2)表示精确到具体的街 placename = ((Address) places.get(0)).getAddressLine(0) + ", " + System.getProperty("line.separator") + ((Address) places.get(0)).getAddressLine(1) + ", " + ((Address) places.get(0)).getAddressLine(2); } latLongString = "纬度:" + lat + "/n经度:" + lng; Toast.makeText(Main2Activity.this, placename, Toast.LENGTH_LONG).show(); } else { latLongString = "无法获取地理信息"; } myLocationText.setText("您当前的位置是:/n" + latLongString); } }
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