Question

在我的地图应用程序中，我似乎没有获得位置更新，我上了车并开始四处开车，但我的位置标记在地图上从未改变，甚至给了我null lat and long

locationManager = (LocationManager) this.getSystemService(LOCATION_SERVICE);

    Criteria criteria = new Criteria();
    criteria.setAccuracy(Criteria.ACCURACY_COARSE);

    String provider = locationManager.getBestProvider(criteria, true);
    if(provider == null){
        provider = LocationManager.NETWORK_PROVIDER;
    }
locationManager.requestLocationUpdates(provider, 60000, 5, this);

我的onLocationChanged侦听器

@Override
public void onLocationChanged(Location location) {
    Logging logger = new Logging();
    logger.append("V", className, "onLocationChanged(Fine)", "Accuracy: " + location.getAccuracy());

    try {
        userLat = Double.toString(location.getLatitude());
        userLong = Double.toString(location.getLongitude());

        int mLat = (int) (location.getLatitude() * 1000000);
        int mLng = (int) (location.getLongitude() * 1000000);

        userLocation = new GeoPoint(mLat, mLng);

        if (!initialFix && mapSettingShowLoc) {
            showUserLocation(userLocation);
            initialFix = true;
        }

        if (mapSettingShowLoc) {
            showUserLocation(userLocation);
        }

    } catch (Exception e) {
        logger.append("E", className, "onLocationChanged", "Exception: " + e);
    }
}

在我的onResume我注册再次收听，因为我可以从地图开始一项新活动

locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 2000, 1, this);

我做错了什么？

Answer 1

我想通了，这是因为我有错过匹配的提供商

没有获得位置更新

1 个答案: