Use a second page

Hello

I think I'm doing everything wrong in my application,

Brief:

I have a Home Page, a Login Page and a Page of registry, so first of all, I created the Home Page and the Login Page:

Home.cpp

#include "Login.hpp"

....

PortoVias::PortoVias(bb::cascades::Application *app)
: QObject(app)
{
    QSettings settings("CompanyX", "AppNameX");

    if (settings.contains("userName") && settings.contains("password")) {

    }
    // create scene document from main.qml asset
    // set parent to created document to ensure it exists for the whole application lifetime
    QmlDocument *qml = QmlDocument::create("asset:///qml/homePage.qml");
    Login *loginService = new Login();
    qml->setContextProperty("loginService", loginService);
    // create root object for the UI
    AbstractPane *root = qml->createRootObject();
    // set created root object as a scene
    app->setScene(root);

}

and the Login.cpp

#include "Login.hpp"

..
..

Login::Login() {
    mNetworkAccessManager = new QNetworkAccessManager(this);

    bool result = connect(mNetworkAccessManager,
            SIGNAL(finished(QNetworkReply*)),
            this, SLOT(requestFinished(QNetworkReply*)));
    Q_ASSERT(result);
    Q_UNUSED(result);
}

QString Login::userName() {
    return m_userName;
}

void Login::setUserName(QString userName) {
    m_userName = userName;
    emit userNameChanged(m_userName);
}

QString Login::password() {
    return m_password;
}

void Login::setPassword(QString password) {
    m_password = password;
    emit passwordChanged(m_password);
}

void Login::initiateRequest()
{
    // Start the activity indicator
//  mActivityIndicator->start();

    // Create and send the network request
    QNetworkRequest request = QNetworkRequest();
    QUrl url = QUrl(loginUrl+m_userName+"&senha="+m_password);
    request.setUrl(url);
    mNetworkAccessManager->get(request);
}

void Login::requestFinished(QNetworkReply* reply)
{
    Label *errorLabel = root->findChild("objectName");
    // Check the network reply for errors
    if (reply->error() == QNetworkReply::NoError) {
        GroupDataModel *model = new GroupDataModel(QStringList());
        JsonDataAccess jda;

        if (jda.hasError()) {
            DataAccessError theError = jda.error();
            if (theError.errorType() == DataAccessErrorType::SourceNotFound)
                errorLabel->setText("Source not found: " + theError.errorMessage());
            else if (theError.errorType() == DataAccessErrorType::ConnectionFailure)
                errorLabel->setText("Connection failure: " + theError.errorMessage());
            else if (theError.errorType() == DataAccessErrorType::OperationFailure)
                errorLabel->setText("Operation failure: " + theError.errorMessage());
        } else {
            errorLabel->setText("No error.");
        }

        QString result =  QString::fromUtf8(reply->readAll());
        QVariantMap object = jda.loadFromBuffer(result).toMap();

        QString autorizacao = object["object"].toMap()["auth"].toString().toStdString().c_str();
        fprintf(stdout,"%s\n", autorizacao.toStdString().c_str());

        model->insert(object);

        // create a ListView control and add the model to the list
        ListView *listView = new ListView();
        listView->setDataModel(model);

    }
    else
    {
        fprintf(stdout,"%s\n", "Problem with the Network");
    }
}

But here, I realized that I don't have the root in the Login.cpp, I started to think that I do everything wrong... no idea on how to get the root of the Home.cpp to Login.cpp?

I use the qml to open Home.qml to Login.qml

Button {
                        text: StringDef.ACCESS_MY_ACCOUNT
                        horizontalAlignment: HorizontalAlignment.Center
                        preferredWidth: 600
                        onClicked: {
                            var page = loginPage.createObject();
                            navigationPane.push(page);
                        }

                        attachedObjects: ComponentDefinition {
                            id: loginPage;
                            source: "asset:///qml/login.qml"
                        }
                    }

My way: use the navigation pane to push

App::App() {
    QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
    qml->setContextProperty("myClass", this);
    AbstractPane *root = qml->createRootObject();
    Application::instance()->setScene(root);
}

void App::pushScreen() {
    Second *sec = new Second((NavigationPane*)Application::instance()->scene(), this);
}

Second::Second(NavigationPane* navigationPane, QObject *parent) : QObject(parent) {
    QmlDocument *qml = QmlDocument::create("asset:///second.qml").parent(this);
    Page *root = qml->createRootObject();
    navigationPane->push(root);
}

Tags: BlackBerry Developers

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