Question

谁能告诉我如何在BB10中进行反向地理编码。我有纬度，经度，现在我需要将其转换为地址。

Answer 1

BB10 Native文档站点上有地理编码和反向地理编码C ++示例，https://developer.blackberry.com/native/documentation/cascades/device_platform/location/geocoding.html你看过那个吗？

Answer 2

我已经完成了以下代码，但是遇到了问题。 QGeoCoordinate GCoor(lat,lang);

//Reverse GeoCoding
QStringList serviceProviders =
        QGeoServiceProvider::availableServiceProviders();
if (serviceProviders.size()) {
    QGeoServiceProvider *serviceProvider = new QGeoServiceProvider(
            serviceProviders.at(0));
    QGeoSearchManager *searchManager = serviceProvider->searchManager();
    //searchManager->setProperty("boundary", "city");
    reply = searchManager->reverseGeocode(GCoor);

    bool finished_connected = QObject::connect(reply, SIGNAL(finished()),
            this, SLOT(readReverseGeocode()));

    bool error_connected = QObject::connect(reply,
            SIGNAL(error(QGeoSearchReply::Error, QString)), this,
            SLOT(reverseGeocodeError(QGeoSearchReply::Error, QString)));


//Reverse GeoLocation
void LocationHandler::readReverseGeocode() {
QList<QGeoPlace> LocDetList = reply->places();
QGeoPlace locDe = LocDetList.at(0);
qDebug() << "City --> " << locDe.address().state();
qDebug() << "Country Code --> " << locDe.address().countryCode();
qDebug() << "Country --> " << locDe.address().country();

reply->deleteLater();
}

`void LocationHandler::reverseGeocodeError(QGeoSearchReply::Error error,
    QString errorString) {
qDebug() << "( Geo::reverseGeocodeError ) " << errorString;
reply->deleteLater();
}

应用程序在此代码中退出此行 -

QGeoPlace locDe = LocDetList.at(0);

这里的问题是什么？

BlackBerry 10中的反向地理编码

2 个答案: