GPS功能实现-OS4.5（模拟器能得到坐标，真机得不到）解决方案

    LocationListenerImpl locationListener;
    LocationProvider provider;
    Criteria criteria = new Criteria();
    criteria.setHorizontalAccuracy(criteria.NO_REQUIREMENT);
    criteria.setVerticalAccuracy(criteria.NO_REQUIREMENT);
    criteria.setPreferredPowerConsumption(criteria.POWER_USAGE_MEDIUM);
    criteria.setCostAllowed(false);
    try {
        provider = LocationProvider.getInstance(criteria);
        provider.setLocationListener(locationListener, 1, 1, 1);
    } catch (Exception e) {
        e.printStackTrace();
    }

    import javax.microedition.location.Location;
    import javax.microedition.location.LocationListener;
    import javax.microedition.location.LocationProvider;

    public class LocationListenerImpl implements LocationListener {    
        public void locationUpdated(LocationProvider arg0, Location arg1) {
            String latitude = arg1.getQualifiedCoordinates().getLatitude()+"";
            String longitude = arg1.getQualifiedCoordinates().getLongitude()+"";
            //这个坐标在真机上就是得不到...
        }
    }

    public void providerStateChanged(LocationProvider arg0, int arg1) {
        // TODO Auto-generated method stub
    }
}