Question

我是Android编码的新手。我的Gps连接没有显示确切的位置地址。它只显示我的镇名n县名。如何获得具体地址，如门牌号，街道，城市等。

这是我目前的输出。 =您的位置是Kajang 43009马来西亚MY

这是location.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" 
    android:background="@drawable/wallpaper" >
    
 <TextView
        android:id="@+id/textlocation"
        android:layout_width="300dp"
        android:layout_height="130dp"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true"
        android:text="Location"
        android:textSize="35dp" />

</RelativeLayout>

这是GPStracker.java

import android.app.AlertDialog;
import android.app.Service;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.util.Log;

public class GPSTracker extends Service implements LocationListener {

	private final Context mContext;

	// flag for GPS status
	boolean isGPSEnabled = false;

	// flag for network status
	boolean isNetworkEnabled = false;

	// flag for GPS status
	boolean canGetLocation = false;

	Location location; // location
	double latitude; // latitude
	double longitude; // longitude

	// The minimum distance to change Updates in meters
	private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters

	// The minimum time between updates in milliseconds
	private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute

	// Declaring a Location Manager
	protected LocationManager locationManager;

	public GPSTracker(Context context) {
		this.mContext = context;
		getLocation();
	}

	public Location getLocation() {
		try {
			locationManager = (LocationManager) mContext
					.getSystemService(LOCATION_SERVICE);

			// getting GPS status
			isGPSEnabled = locationManager
					.isProviderEnabled(LocationManager.GPS_PROVIDER);

			// getting network status
			isNetworkEnabled = locationManager
					.isProviderEnabled(LocationManager.NETWORK_PROVIDER);

			if (!isGPSEnabled && !isNetworkEnabled) {
				// no network provider is enabled
			} else {
				this.canGetLocation = true;
				if (isNetworkEnabled) {
					locationManager.requestLocationUpdates(
							LocationManager.NETWORK_PROVIDER,
							MIN_TIME_BW_UPDATES,
							MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
					Log.d("Network", "Network");
					if (locationManager != null) {
						location = locationManager
								.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
						if (location != null) {
							latitude = location.getLatitude();
							longitude = location.getLongitude();
						}
					}
				}
				// if GPS Enabled get lat/long using GPS Services
				if (isGPSEnabled) {
					if (location == null) {
						locationManager.requestLocationUpdates(
								LocationManager.GPS_PROVIDER,
								MIN_TIME_BW_UPDATES,
								MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
						Log.d("GPS Enabled", "GPS Enabled");
						if (locationManager != null) {
							location = locationManager
									.getLastKnownLocation(LocationManager.GPS_PROVIDER);
							if (location != null) {
								latitude = location.getLatitude();
								longitude = location.getLongitude();
							}
						}
					}
				}
			}

		} catch (Exception e) {
			e.printStackTrace();
		}

		return location;
	}
	
	/**
	 * Stop using GPS listener
	 * Calling this function will stop using GPS in your app
	 * */
	public void stopUsingGPS(){
		if(locationManager != null){
			locationManager.removeUpdates(GPSTracker.this);
		}		
	}
	
	/**
	 * Function to get latitude
	 * */
	public double getLatitude(){
		if(location != null){
			latitude = location.getLatitude();
		}
		
		// return latitude
		return latitude;
	}
	
	/**
	 * Function to get longitude
	 * */
	public double getLongitude(){
		if(location != null){
			longitude = location.getLongitude();
		}
		
		// return longitude
		return longitude;
	}
	
	/**
	 * Function to check GPS/wifi enabled
	 * @return boolean
	 * */
	public boolean canGetLocation() {
		return this.canGetLocation;
	}
	
	/**
	 * Function to show settings alert dialog
	 * On pressing Settings button will lauch Settings Options
	 * */
	public void showSettingsAlert(){
		AlertDialog.Builder alertDialog = new AlertDialog.Builder(mContext);
   	 
        // Setting Dialog Title
        alertDialog.setTitle("GPS is settings");
 
        // Setting Dialog Message
        alertDialog.setMessage("GPS is not enabled. Do you want to go to settings menu?");
 
        // On pressing Settings button
        alertDialog.setPositiveButton("Settings", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog,int which) {
            	Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
            	mContext.startActivity(intent);
            }
        });
 
        // on pressing cancel button
        alertDialog.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
            dialog.cancel();
            }
        });
 
        // Showing Alert Message
        alertDialog.show();
	}

	@Override
	public void onLocationChanged(Location location) {
	}

	@Override
	public void onProviderDisabled(String provider) {
	}

	@Override
	public void onProviderEnabled(String provider) {
	}

	@Override
	public void onStatusChanged(String provider, int status, Bundle extras) {
	}

	@Override
	public IBinder onBind(Intent arg0) {
		return null;
	}

}

这是LocationActivity.java

import java.util.List;
import java.util.Locale;

import android.app.Activity;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.os.Bundle;
import android.widget.TextView;

public class LocationActivity extends Activity {
	
	Geocoder geocoder;
	List<Address> addresses;
	Location loc;
	
	// GPS Location
	GPSTracker gps;

	
	// Getting intent data
	Intent i = getIntent();
	
	TextView detailsx;
		
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		setContentView(R.layout.location);
		
		
		detailsx = (TextView) findViewById(R.id.textlocation);
		
		// creating GPS Class object
		gps = new GPSTracker(this);
		
		Double latx = gps.getLatitude();
		Double longx= gps.getLongitude();
	
	try {
		geocoder = new Geocoder(LocationActivity.this, Locale.ENGLISH);
		addresses = geocoder.getFromLocation(latx, longx, 1);
		StringBuilder str = new StringBuilder();
		
		if (geocoder.isPresent()) {
			Address returnAddress = addresses.get(0);
			 
			String localityString = returnAddress.getLocality();
			String city = returnAddress.getCountryName();
			String region_code = returnAddress.getCountryCode();
			String zipcode = returnAddress.getPostalCode();
			
			String xx = localityString +" "+zipcode + " "+ city + " " + region_code ;
			
			String messagex= "Your Location is:" + " "+ xx  ;
            detailsx.setText(messagex);
			
		} }catch(Exception e){
			
		}
	}
}

Answer 1

快速查看后，我发现您没有使用locationlistener接口所需的onLocationChanged方法来提供您将获得经度和纬度的位置对象。

至于获取实际的街道地址，如果这是您想要的，最简单的方法是使用可以根据经度和纬度等提供大致街道地址的API（其中一个Google API提供此服务）

此外，如果您使用模拟器进行测试（例如genymotion），那么它将仅提供您在模拟器中指定的特定静态位置

为什么我的GPS没有显示确切的位置地址？

1 个答案: