如何从地图上获取街道地址、邮政编码、国家、州?
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【中文标题】如何从地图上获取街道地址、邮政编码、国家、州?【英文标题】:How to get the street address ,zipcode ,country ,state from map? 【发布时间】:2018-10-20 08:06:18 【问题描述】:我正在开发一个应用程序,当使用点击图像时,应该打开谷歌地图,当地图首先打开时它显示用户的当前位置,当用户点击地图标记上的任何位置后提交它应该采取街道名称、密码(邮政编码)、州和国家,并希望这些数据自动填充到编辑框中。 我是新的安卓,所以不明白怎么做 提前致谢
【问题讨论】:
你需要一个 api 来完成它。谷歌有一个可以做到这一点的地方 api。 cloud.google.com/maps-platform 【参考方案1】:LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
Geocoder geocoder;
List<Address> addresses;
geocoder = new Geocoder(this, Locale.getDefault());
try
addresses = geocoder.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
String address = addresses.get(0).getAddressLine(0);
String city = addresses.get(0).getLocality();
catch (IOException e)
e.printStackTrace();
请注意: location.getLatitude() = 你的纬度值, location.getLongitude() = 你的经度值。
【讨论】:
当用户点击屏幕时它会自动获取纬度和经度值? 以及如何在点击图片时打开地图? ***.com/a/33291227/9423249 使用它您将获得纬度和经度值。对于打开地图,您需要谷歌地图集成步骤。【参考方案2】:为了实现这一点,您需要遵循一些步骤。
第一步: 添加Location Api Lib:
implementation 'com.google.android.gms:play-services-location:11.6.0'
第二步: 将元数据添加到 AndroidManifest.xml: 用您的 API 密钥替换“密钥”
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data
android:name="com.google.android.geo.API_KEY"
android:value="key"/>
第三步: 您需要一项服务和一项活动:
1.AddressListActivity.java
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Geocoder;
import android.location.Location;
import android.os.Bundle;
import android.os.Handler;
import android.os.ResultReceiver;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.google.android.gms.location.FusedLocationProviderClient;
import com.google.android.gms.location.LocationCallback;
import com.google.android.gms.location.LocationRequest;
import com.google.android.gms.location.LocationResult;
import com.google.android.gms.location.LocationServices;
public class AddressListActivity extends AppCompatActivity
private FusedLocationProviderClient fusedLocationClient;
private static final int LOCATION_PERMISSION_REQUEST_CODE = 2;
private LocationAddressResultReceiver addressResultReceiver;
private TextView currentAddTv;
private Location currentLocation;
private LocationCallback locationCallback;
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.current_location_address_layout);
Toolbar tb = findViewById(R.id.toolbar);
setSupportActionBar(tb);
tb.setSubtitle("Current Location Address");
addressResultReceiver = new LocationAddressResultReceiver(new Handler());
currentAddTv = findViewById(R.id.current_address);
fusedLocationClient = LocationServices.getFusedLocationProviderClient(this);
locationCallback = new LocationCallback()
@Override
public void onLocationResult(LocationResult locationResult)
currentLocation = locationResult.getLocations().get(0);
getAddress();
;
;
startLocationUpdates();
@SuppressWarnings("MissingPermission")
private void startLocationUpdates()
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED)
ActivityCompat.requestPermissions(this,
new String[]Manifest.permission.ACCESS_FINE_LOCATION,
LOCATION_PERMISSION_REQUEST_CODE);
else
LocationRequest locationRequest = new LocationRequest();
locationRequest.setInterval(2000);
locationRequest.setFastestInterval(1000);
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
fusedLocationClient.requestLocationUpdates(locationRequest,
locationCallback,
null);
@SuppressWarnings("MissingPermission")
private void getAddress()
if (!Geocoder.isPresent())
Toast.makeText(AddressListActivity.this,
"Can't find current address, ",
Toast.LENGTH_SHORT).show();
return;
Intent intent = new Intent(this, GetAddressIntentService.class);
intent.putExtra("add_receiver", addressResultReceiver);
intent.putExtra("add_location", currentLocation);
startService(intent);
@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
@NonNull int[] grantResults)
switch (requestCode)
case LOCATION_PERMISSION_REQUEST_CODE:
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED)
startLocationUpdates();
else
Toast.makeText(this, "Location permission not granted, " +
"restart the app if you want the feature",
Toast.LENGTH_SHORT).show();
return;
private class LocationAddressResultReceiver extends ResultReceiver
LocationAddressResultReceiver(Handler handler)
super(handler);
@Override
protected void onReceiveResult(int resultCode, Bundle resultData)
if (resultCode == 0)
//Last Location can be null for various reasons
//for example the api is called first time
//so retry till location is set
//since intent service runs on background thread, it doesn't block main thread
Log.d("Address", "Location null retrying");
getAddress();
if (resultCode == 1)
Toast.makeText(AddressListActivity.this,
"Address not found, " ,
Toast.LENGTH_SHORT).show();
String currentAdd = resultData.getString("address_result");
showResults(currentAdd);
private void showResults(String currentAdd)
currentAddTv.setText(currentAdd);
@Override
protected void onResume()
super.onResume();
startLocationUpdates();
@Override
protected void onPause()
super.onPause();
fusedLocationClient.removeLocationUpdates(locationCallback);
2.您的 Intent 服务为 GetAddressIntentService
import android.app.IntentService;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Bundle;
import android.os.ResultReceiver;
import android.support.annotation.Nullable;
import android.util.Log;
import java.util.List;
import java.util.Locale;
public class GetAddressIntentService extends IntentService
private static final String IDENTIFIER = "GetAddressIntentService";
private ResultReceiver addressResultReceiver;
public GetAddressIntentService()
super(IDENTIFIER);
//handle the address request
@Override
protected void onHandleIntent(@Nullable Intent intent)
String msg = "";
//get result receiver from intent
addressResultReceiver = intent.getParcelableExtra("add_receiver");
if (addressResultReceiver == null)
Log.e("GetAddressIntentService",
"No receiver, not processing the request further");
return;
Location location = intent.getParcelableExtra("add_location");
//send no location error to results receiver
if (location == null)
msg = "No location, can't go further without location";
sendResultsToReceiver(0, msg);
return;
//call GeoCoder getFromLocation to get address
//returns list of addresses, take first one and send info to result receiver
Geocoder geocoder = new Geocoder(this, Locale.getDefault());
List<Address> addresses = null;
try
addresses = geocoder.getFromLocation(
location.getLatitude(),
location.getLongitude(),
1);
catch (Exception ioException)
Log.e("", "Error in getting address for the location");
if (addresses == null || addresses.size() == 0)
msg = "No address found for the location";
sendResultsToReceiver(1, msg);
else
Address address = addresses.get(0);
StringBuffer addressDetails = new StringBuffer();
addressDetails.append(address.getFeatureName());
addressDetails.append("\n");
addressDetails.append(address.getThoroughfare());
addressDetails.append("\n");
addressDetails.append("Locality: ");
addressDetails.append(address.getLocality());
addressDetails.append("\n");
addressDetails.append("County: ");
addressDetails.append(address.getSubAdminArea());
addressDetails.append("\n");
addressDetails.append("State: ");
addressDetails.append(address.getAdminArea());
addressDetails.append("\n");
addressDetails.append("Country: ");
addressDetails.append(address.getCountryName());
addressDetails.append("\n");
addressDetails.append("Postal Code: ");
addressDetails.append(address.getPostalCode());
addressDetails.append("\n");
sendResultsToReceiver(2,addressDetails.toString());
//to send results to receiver in the source activity
private void sendResultsToReceiver(int resultCode, String message)
Bundle bundle = new Bundle();
bundle.putString("address_result", message);
addressResultReceiver.send(resultCode, bundle);
3.XML 显示你的数据
<?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_
android:layout_
tools:context=".AddressListActivity">
<android.support.v7.widget.Toolbar
android:id="@+id/toolbar"
android:layout_
android:layout_
android:background="?attr/colorPrimary"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent"/>
<TextView
android:layout_
android:layout_
android:layout_margin="8dp"
android:id="@+id/add_label"
android:textAppearance="@style/TextAppearance.AppCompat.Headline"
android:text="Current Location Address"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/toolbar"/>
<TextView
android:layout_
android:layout_
android:layout_margin="8dp"
android:layout_marginTop="16dp"
android:id="@+id/current_address"
android:textAppearance="@style/TextAppearance.AppCompat.Large"
android:lines="10"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toBottomOf="@+id/add_label"/>
</android.support.constraint.ConstraintLayout>
更多信息,请查看this link。
【讨论】:
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