Question

我从当前位置获得经度和经度使用地理编码器从纬度经度显示城市国家和州名称在这里我把我的logacat有错误

Log.error

05-15 12:13:40.584: E/Running(309): Mehod getBestProvider
05-15 12:13:40.674: E/Running(309): Mehod getBestProvider
05-15 12:13:57.083: E/Running(309): C Latitude27.422006
05-15 12:13:57.083: E/Running(309): C Longitude22.084095
05-15 12:13:57.093: E/Running(309): try called
05-15 12:13:57.093: E/Running(309): Exception called
05-15 12:13:57.093: W/System.err(309): java.io.IOException: Service not Available
05-15 12:13:57.113: W/System.err(309):at
     ndroid.location.Geocoder.getFromLocation(Geocoder.java:117)
05-15 12:13:57.113: W/System.err(309):  at

Activityclass

 public class CitycountrymapActivity extends Activity implements LocationListener {
 private LocationManager locationManager;
 //private GeoPoint currentPoint;
 private Location currentLocation;
 double currentlatitude;
 double currentlongitude;
 String provider;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    getLocation();

}


 public void getLocation()
    {
        provider=getBestProvider();

        currentLocation=locationManager.getLastKnownLocation(provider);

        if(currentLocation!=null)
        {
            setCurrentLocation(currentLocation);

        }
        else
        {
            Toast.makeText(this, "Location not yet acquired", Toast.LENGTH_LONG).show();
        }

    }


    public String getBestProvider()
    {
        locationManager=(LocationManager)getSystemService(Context.LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        criteria.setPowerRequirement(Criteria.NO_REQUIREMENT);
        criteria.setAccuracy(Criteria.NO_REQUIREMENT);
        String bestprovider=locationManager.getBestProvider(criteria, true);
        Log.e("Running","Mehod getBestProvider");
        return bestprovider;
    }

    public void setCurrentLocation(Location location)
    {


        //currentlatitude=(double)(location.getLatitude());
        //currentlongitude=(double)(location.getLongitude());

        currentlatitude =27.422006;
        currentlongitude=22.084095;

        currentLocation = new Location("");

        //currentPoint = new GeoPoint((int)(72.454565* 1E6),(int)(23.4572448 * 1E6)); 
        //currentPoint  = new GeoPoint((int)(72.454565),(int)(23.4572448));

         Global.clat=currentlatitude;
         Global.clon=currentlongitude;

        Log.e("Running","C Latitude"+Global.clat);
        Log.e("Running","C Longitude"+Global.clon);

        try
        {


        Log.e("Running","try called");  

        Geocoder geocoder = new Geocoder(this, Locale.getDefault());
        List<Address> addresses=geocoder.getFromLocation(currentlatitude, currentlongitude, 1);  

        Log.e("Running","geocoder set");
        Log.e("Running","addresses");

        String address = addresses.get(0).getAddressLine(0); 
        String city = addresses.get(0).getAddressLine(1); 
        String country = addresses.get(0).getAddressLine(2);

        Log.e("Running","Latitude"+currentlatitude);
        Log.e("Running","Longitude"+currentlongitude);
        Log.e("Running","Address"+address);
        Log.e("Running","City-->"+city);
        Log.e("Running","Country->"+country);

        }
        catch(Exception e)
        {
            Log.e("Running","Exception called");
            e.printStackTrace();
        }
    }

    public void onLocationChanged(Location location) {
        // TODO Auto-generated method stub

        Toast.makeText(this, "Loction Changed", Toast.LENGTH_SHORT).show();
        setCurrentLocation(location);
    }

    protected void onResume()
    {
        super.onResume();
        locationManager.requestLocationUpdates(getBestProvider(), 1000, 1, this);
    }

    protected void onPause()
    {
        super.onPause();
        locationManager.removeUpdates(this);

    }

    public void onProviderDisabled(String provider) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "Provider Disabled", Toast.LENGTH_SHORT).show();
    }

    public void onProviderEnabled(String provider) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "Provider Enabled", Toast.LENGTH_SHORT).show();
    }

    public void onStatusChanged(String provider, int status, Bundle extras) {
        // TODO Auto-generated method stub
        Toast.makeText(this, "Staus Changed", Toast.LENGTH_SHORT).show();
    }

   }

Answer 1

请参阅@ddewaele发布的this answer。它将为您解决问题，也许解决方法也可以帮助您启动和运行应用程序。

Answer 2

        locMan = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

        if (locMan.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
            locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 0,
                    this);
            curLocation = locMan
                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
            Log.v("Gps", "on");
        } else if (locMan.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) {
            locMan.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,
                    100, 0, this);
            curLocation = locMan
                    .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
            Log.v("network", "on");

        } else {
            Log.v("setting", "on");
            final Intent poke = new Intent();
            poke.setClassName("com.android.settings",
                    "com.android.settings.widget.SettingsAppWidgetProvider");
            poke.addCategory(Intent.CATEGORY_ALTERNATIVE);
            poke.setData(Uri.parse("3"));
            sendBroadcast(poke);

            locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, 100, 0,
                    this);
            curLocation = locMan
                    .getLastKnownLocation(LocationManager.GPS_PROVIDER);
        }

        if (curLocation != null) {
            clat = curLocation.getLatitude();
            clng = curLocation.getLongitude();
            Log.v("TAG  ", clat + "  " + clng);
        //  GeoPoint srcgeopoint = new GeoPoint((int) (clat * 1E6),
        //          (int) (clng * 1E6));


        } else {
            Toast.makeText(new_map.this, "No Location Find", Toast.LENGTH_SHORT);
        }


  //  srcLat = geoPoint.getLatitudeE6() / 1E6;
   //       srcLong = geoPoint.getLongitudeE6() / 1E6;

            Geocoder gCoder = new Geocoder(this);
            List<Address> addresses;
            try {
                addresses = gCoder.getFromLocation(clat, clng, 5);
                Log.e("get adderess", addresses + "");
                if (addresses != null && addresses.size() > 0) {
                    addres = addresses.get(0).getLocality();
                    System.out.print(addresses.get(0).getLocality());
                }
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }

在城市名称集中添加代码并获取一个......

使用android中的地理编码器从纬度经度中查找城市名称和国家/地区名称

2 个答案: