如何在Android中获取纬度和经度？

如何在android2.3.3中获取当前的纬度和经度？

我尝试跟随this,但我无法运行程序.

我的代码

    LatView = (TextView)findViewById(R.id.LatText);
    LngView = (TextView)findViewById(R.id.LngText);
    LocationManager lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE); 
    Location location = lm.getLastKNownLocation(LocationManager.GPS_PROVIDER);
    double longitude = location.getLongitude();
    double latitude = location.getLatitude();

在android清单中我把它.

<uses-permission android:name="android.permission.INTERNET" /> 
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

请帮忙.
谢谢.

解决方法:

这是我在我的应用程序中找到设备当前位置,它工作正常：

public class MyLocationActivity extends Activity implements LocationListener {
    private LocationManager mgr;
    private String best;
    public static double myLocationLatitude;
    public static double myLocationLongitude;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        mgr = (LocationManager) getSystemService(LOCATION_SERVICE);

        dumpProviders();

        Criteria criteria = new Criteria();

        best = mgr.getBestProvider(criteria, true);
        Log.d("best provider", best);

        Location location = mgr.getLastKNownLocation(best);
        dumpLocation(location);

            //may be some intent here
    }

    public void onLocationChanged(Location location) {
        // Todo Auto-generated method stub
        dumpLocation(location);

    }

    public void onProviderdisabled(String provider) {
        // Todo Auto-generated method stub

    }

    public void onProviderEnabled(String provider) {
        // Todo Auto-generated method stub

    }

    public void onStatusChanged(String provider, int status, Bundle extras) {
        // Todo Auto-generated method stub

    }

    @Override
    protected void onPause() {

        super.onPause();
        mgr.removeUpdates(this);
    }

    @Override
    protected void onResume() {

        super.onResume();
        mgr.requestLocationUpdates(best, 15000, 1, this);
    }

    private void dumpLocation(Location l) {

        if (l == null) {

            myLocationLatitude = 0.0;
            myLocationLongitude = 0.0;
        } else {

            myLocationLatitude = l.getLatitude();
            myLocationLongitude = l.getLongitude();
        }
    }

    private void dumpProviders() {

        List<String> providers = mgr.getAllProviders();
        for (String p : providers) {

            dumpProviders(p);
        }
    }

    private void dumpProviders(String s) {

        LocationProvider info = mgr.getProvider(s);
        StringBuilder builder = new StringBuilder();
        builder.append("name: ").append(info.getName());
    }

}

这里MyLocationLatitude和MyLocationLongitude给出了你需要的lat和long的值.