Question

我想从同一个监听器和实现中听取GPS和NETWORK位置提供程序

这样做可以：

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

它会为两个提供商使用相同的方法吗？

Answer 1

谷歌说here：

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，一次用于NETWORK_PROVIDER，一次用于GPS_PROVIDER。

Answer 2

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);
        }

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) {
    }
}

}

Answer 3

Google使用融合位置API提供了更好的API：

https://developers.google.com/location-context/fused-location-provider/

https://developers.google.com/android/reference/com/google/android/gms/location/FusedLocationProviderClient

https://developer.android.com/training/location/receive-location-updates

https://github.com/sakurabird/Android-Fused-location-provider-example

https://youtu.be/eHjHlujp3Tg?list=WL&t=2129

android位置监听器

3 个答案: