android定位问题

private android.location.LocationManager mLocationManager;
LocationListener [] mLocationListeners = new LocationListener[] {
            new LocationListener(android.location.LocationManager.GPS_PROVIDER),
            new LocationListener(android.location.LocationManager.NETWORK_PROVIDER)
    };
if (mLocationManager == null) {
            mLocationManager = (android.location.LocationManager)
                    mContext.getSystemService(Context.LOCATION_SERVICE);
        }
        if (mLocationManager != null) {
            try {
                mLocationManager.requestLocationUpdates(
                        android.location.LocationManager.NETWORK_PROVIDER,
                        1000,
                        0F,
                        mLocationListeners[1]);
            } catch (SecurityException ex) {
                Log.i(TAG, "fail to request location update, ignore", ex);
            } catch (IllegalArgumentException ex) {
                Log.d(TAG, "provider does not exist " + ex.getMessage());
            }
            try {
                mLocationManager.requestLocationUpdates(
                        android.location.LocationManager.GPS_PROVIDER,
                        1000,
                        0F,
                        mLocationListeners[0]);
               
            } catch (SecurityException ex) {
                Log.i(TAG, "fail to request location update, ignore", ex);
            } catch (IllegalArgumentException ex) {
                Log.d(TAG, "provider does not exist " + ex.getMessage());
            }
            Log.d(TAG, "startReceivingLocationUpdates");
        }