android获取当前位置失败

Question

I wan't to get my current location,but in most phones it's failed. Next is mycode:

public Location getLocation(Context context)
{
    LocationManager locMan = (LocationManager) context
        .getSystemService(Context.LOCATION_SERVICE);
    Location location = locMan
        .getLastKnownLocation(LocationManager.GPS_PROVIDER);
    if (location == null)
    {
        location = locMan
            .getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
    }

    return location;
}    

Answer 1

Try using this...might be possible that locationmanager doesn't have your last location

/** * this function is used to instantiate location manager and bind it to GPS provider. * location manager will request for location updates after every 5 minutes. */

private void subscribeToLocationUpdates() {
      this.lm = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
      this.lm.requestLocationUpdates(LocationManager.GPS_PROVIDER,5000, 0, this);
}

public void onLocationChanged(Location location) {
    if(location != null){

        //make use of this location

    }       
}

Answer 2

First of all - did you set the right permission? The location permissions are implicit - so if you request fine location, you'll get coarse, too.

Did you follow this guide(s) for getting your location?

Normally you don't set up a LocationService each time you want to get the current Location, too. Did you try to request location updates for yourself?

There is too less code and the question is too unspecified to really help you, sorry.

Answer 3

在清单文件中添加权限ACCESS_FINE_LOCATION