2013-10-13 33 views
0

我正在GPS位置,我得到的经度和纬度,但我不知道如何得到完整的地址,而不是这个。我按照我的代码的教程,看到很多帖子,了解我怎样才能在此基础上,但地址coudnt找到任何可能的解决方案显示完整的地址,而不是经度和纬度

以下是我的代码:

GpsTracker.java

package com.example.gpslocator; 

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; 

     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; 
        // First get location from Network Provider 
        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; 


     } 

     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 arg0) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderDisabled(String arg0) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onProviderEnabled(String arg0) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public void onStatusChanged(String arg0, int arg1, Bundle arg2) { 
     // TODO Auto-generated method stub 

    } 

    @Override 
    public IBinder onBind(Intent arg0) { 
     // TODO Auto-generated method stub 
     return null; 
    } 



} 

MainActivity.java

package com.example.gpslocator; 

import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import android.view.View; 
import android.widget.Button; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends Activity { 

    Button btnShowLocation; 
    TextView textview; 

    // GPSTracker class 
    GpsTracker gps; 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     GpsTracker gpsTracker = new GpsTracker(this); 
     btnShowLocation = (Button) findViewById(R.id.button1); 
     btnShowLocation.setOnClickListener(new View.OnClickListener() { 

       @Override 
       public void onClick(View arg0) {   
        // create class object 
        gps = new GpsTracker(MainActivity.this); 

        // check if GPS enabled  
        if(gps.canGetLocation()){ 

         double latitude = gps.getLatitude(); 
         double longitude = gps.getLongitude(); 

         // \n is for new line 
         Toast.makeText(getApplicationContext(), "Your Location is - \nLat: " + latitude + "\nLong: " + longitude, Toast.LENGTH_LONG).show();  
        }else{ 
         // can't get location 
         // GPS or Network is not enabled 
         // Ask user to enable GPS/network in settings 
         gps.showSettingsAlert(); 
        } 

       } 
      }); 
     } 


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

} 

回答

1

使用接收到的位置,将其提供给地理编码器或地理编码API。

  • GeoCoder是因为API级别1和导致的Address对象的ArrayList SDK的一部分。
  • Geocoding是一个web服务,它响应一个JSON。

这两种解决方案都提供详细信息,可用于地理编码(地址到地址)或反向地理编码(地址到位置)。

编辑:

使用地理编码器是这样的:

if(GeoCoder.isPresent()) { 

    Geocoder geocoder = new Geocoder(this); 
    List<Address> addresses = null; 
    try { 
     addresses = geocoder.getFromLocationName(latitude, longitude, 1); 
     if (!addresses.isEmpty()) { 
      Address address = list.get(0); 
      // do something with your address 
     } else { 
      // No results for your location 
     } 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
} 
+0

我不知道如何实现 –

+0

@hinafatima见我的编辑。 –

+0

我需要在哪个课程中添加这个? –