bb 曲线中的蜂窝基站 GPS 8520

Question

谁能给我一个代码来获取黑莓8520 os 5.0版的cellsite gps位置。 我手机的详细信息：

  model:bb curve 8520
  version :5.0.0.1036
  carrier:airtel (post paid )
  location :Andhra Pradesh ,India
  data services :on

当我安装谷歌地图时，我可以看到位置，因此有机会使用此手机获取当前位置。

我正在尝试开发一个应用程序，该应用程序将通过使用蜂窝站点位置来显示手机的当前位置，因为此手机型号没有内置 GPS 设备。

请急 我在互联网上尝试了几个例子，但都是徒劳的。

提前致谢

这是我使用的代码：

        BlackBerryCriteria bc=new BlackBerryCriteria(GPSInfo.       GPS_MODE_CELLSITE );        
  try {
      LocationProvider lp=LocationProvider.getInstance(bc);
         if(lp !=null)
       {
        Location loc=lp.getLocation(-1);
        add (new EditField(loc.getQualifiedCoordinates().getLatitude()+"\n"+loc.getQualifiedCoordinates().getLongitude(),""));
       }
else
     {
    add(new EditField("unable to find the location provider", ""));
     }
} catch (LocationException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
} catch (Exception e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}}

但我遇到了一个未捕获的异常 net.rim.device.api.UnsupportedOperationException。

请帮我处理一下紧急情况

Answer 1

首先，黑莓在印度不提供地图。 您只能从您的设备获取 Lat Lon。

当您尝试获取 lat lon 时，请前往空旷的地方。 请勿在办公室、房间或建筑物内尝试。

转到Gps Lat Lon

Answer 2

    import java.util.TimerTask;
import javax.microedition.location.Criteria;
import javax.microedition.location.Location;
import javax.microedition.location.LocationException;
import javax.microedition.location.LocationListener;
import javax.microedition.location.LocationProvider;
import net.rim.device.api.ui.UiApplication;
import net.rim.device.api.ui.component.Dialog;

public class HandleMAPAPI 
{
    static boolean _isCancel = false;
    private Criteria criteria;
    double latitude ,longitude;
    TimerTask _loadinglatlon;
    private LocationProvider provider,_locationProvider;
    Location location = null;
    boolean _islatlong;

    public HandleMAPAPI()
    {
        startLocationUpdate() ;
    }

    public void startLocationUpdate() 
    {
        try{
            _locationProvider = LocationProvider.getInstance(null);
            if (_locationProvider != null) {
                _locationProvider.setLocationListener(
                        new LocationListenerImpl(), 1, 1, 1);
            } else {
                setupCriteria();
                setupProvider();
            }
        }catch(LocationException le){
            System.out.println("----Exception Of Location--"+le);
        }
    }

    /**
     * Initializes criteria according to the mode selected by the user.
     */
    private void setupCriteria() {
        criteria = new Criteria();
        criteria.setCostAllowed(true);
        criteria.setHorizontalAccuracy(Criteria.NO_REQUIREMENT);
        criteria.setVerticalAccuracy(Criteria.NO_REQUIREMENT);
        criteria.setPreferredPowerConsumption(Criteria.POWER_USAGE_LOW);
    }

    /**
     * Initializes LocationProvider based on specified mode and Criteria.
     */
    private void setupProvider() {
        try {

            // Just to give setupPDE and criteria setup.. some time. This may
            // not be needed at all.
            try {
                Thread.sleep(5000);
            } catch (Throwable e) {
               System.out.println(e.toString());
            }

            provider = LocationProvider.getInstance(criteria);
            if (provider != null) {
                singleFixLocationUpdate();
            } else {
                //Utilites.log("Provider unavailable for that Criteria");
            }
        } catch (Throwable t) {
            System.out.println(t.toString());
        }
    }

    /**
     * Gets a single fix by calling LocationProvider.getLocation().
     */

    private void singleFixLocationUpdate() {
        try {
            location = provider.getLocation(-1);
        } catch (InterruptedException ie) {
            System.out.println("InterruptedException thrown by getLocation(): "
                    + ie.toString());
        } catch (LocationException le) {
            System.out.println("LocationException thrown by getLocation(): "
                    + le.toString());
        } catch (Throwable t) {
            System.out.println(t.toString());
        }
        if (location != null) {
            if (location.isValid()) {
                System.out.println("Valid single fix: "
                        + location.getQualifiedCoordinates().getLatitude()
                        + ", "
                        + location.getQualifiedCoordinates().getLongitude()
                        + " "
                        + location.getQualifiedCoordinates().getAltitude());

                longitude= location.getQualifiedCoordinates()
                        .getLongitude();
                latitude = location.getQualifiedCoordinates()
                        .getLatitude();

                if (longitude != 0.0 && latitude != 0.0) {

                }
                else{
                    System.out.println("----Cell site Sunnyvale--");
                }
            } else {
                System.out.println("Invalid single fix");
            }
        } else 
        {
            closeLoading("null", "null");
            Dialog.alert("No GPS Found");
        }
    }

    public  class LocationListenerImpl implements LocationListener {
        public void locationUpdated(LocationProvider provider, Location location) {
            System.out.println("---Location Updated-----");
            if (location.isValid()) {

                System.out.println("---Location Valid----");
                longitude = location.getQualifiedCoordinates()
                        .getLongitude();
                latitude= location.getQualifiedCoordinates()
                        .getLatitude();
                if (longitude != 0.0 && latitude != 0.0) {

                } else {
                    System.out.println("--Cellsite valide=-----");
                        setupCriteria();
                        setupProvider();
                }
                _locationProvider.setLocationListener(null, 0, 0, 0);

            }else{
                System.out.println("else NOT valid--Cellsite valide=-----");
                setupCriteria();
                setupProvider();
            }
            System.out.println("---Location Not Valid----");
        }

        public void providerStateChanged(LocationProvider provider, int newState) {}
    }       
}