android位置监听器

Question

i want to listen to both GPS and NETWORK location provider from the same listener and implementation 我想从同一个监听器和实现中同时收听GPS和NETWORK位置提供程序

is this ok for doing that: 这样做可以：

        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,0,metersToUpdate,this);
        locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,0,metersToUpdate,this);

will it user the same methods for both providers ? 它会为两个提供商使用相同的方法吗？

Answer 1

Google says here : 谷歌在这里说：

You can also request location updates from both the GPS and the Network Location Provider by calling requestLocationUpdates() twice—once for NETWORK_PROVIDER and once for GPS_PROVIDER. 您还可以通过两次调用requestLocationUpdates（）来为GPS和网络位置提供商请求位置更新，一次为NETWORK_PROVIDER，一次为GPS_PROVIDER。

Answer 2

It's simple as 1.2.3 look at my example... 这很简单，因为1.2.3看看我的例子......

try {
            Criteria criteria = new Criteria();
            mLocationManagerHelper.SetLocationManager((LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE));
            mLocationManagerHelper.GetLocationManager().requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 500.0f, mLocationManagerHelper.GetLocationListener());

            String provider = mLocationManagerHelper.GetLocationManager().getBestProvider(criteria, false);
            Location location = mLocationManagerHelper.GetLocationManager().getLastKnownLocation(provider);

            if (location != null) {
                mLongitude = location.getLongitude();
                mLatitude = location.getLatitude();
            }
        } catch (Exception ex) {
            Log.e(TAG, "GPS", ex);
        }

Location helper 位置助手

public class LocationManagerHelper {
private static final String TAG = LocationManagerHelper.class.getSimpleName();
private Context mContext;

private LocationManager mLocationManager;
private GeoUpdateHandler mLocationListener = new GeoUpdateHandler();

public LocationManagerHelper(Context context) {
    this.mContext = context;
}


public GeoUpdateHandler GetLocationListener() {
    return mLocationListener;
}

public void SetLocationManager(LocationManager locationManager) {
    mLocationManager = locationManager;
}

public LocationManager GetLocationManager() {
    return mLocationManager;
}


public void Stop() {
    if (mLocationManager != null) {
        mLocationManager.removeUpdates(mLocationListener);
    }
}

private class GeoUpdateHandler implements LocationListener {
    @Override
    public void onLocationChanged(Location loc) {
        String longitude = "Longitude: " + loc.getLongitude();
        Log.v(TAG, longitude);
        String latitude = "Latitude: " + loc.getLatitude();
        Log.v(TAG, latitude);
    }

    @Override
    public void onStatusChanged(String s, int i, Bundle bundle) {

    }

    @Override
    public void onProviderEnabled(String s) {
    }

    @Override
    public void onProviderDisabled(String s) {
    }
}

} }