ListView filling does not

Hi all

ListView in my app is not filling, here is the code snippet

ListView {
                    id:sectionlistview
                    objectName: "sectionlistview"

                    ///dataModel: groupDataModel
                    listItemComponents: [
                        ListItemComponent {
                            id:row
                            type: "item"
                            CustomListItem {
                                dividerVisible: true
                                highlightAppearance: HighlightAppearance.Default
                                Container{
                                    opacity: 0.9
                                    background: Color.create("#c0c0c0")
                                    layout: StackLayout {
                                     orientation: LayoutOrientation.TopToBottom
                                    }
                                    Label {
                                        text: ListItemData.name
                                        textStyle.base: myStyle.style
                                        textStyle.color: Color.create("#ffffff")
                                    }
                                }
                            }

                        }
                    ]
                }

void ApplicationUI::fetchData(){
        listView = root->findChild("sectionlistview");
        model = new GroupDataModel(QStringList() << "name");
        model->clear();
        model->setGrouping(ItemGrouping::None);
        model->insert(dataName);
        listView->setDataModel(model);
}

dataName is a QVariantMap variable. The data are available in the variable, I checked that.

The following, almost identical to yours works for me. There are a few things in your code, which I don't see, so it is difficult to check every detail. First, create a new application and replace applicationui.cpp, applicationui.hpp and main.qml with my code and then test it. If it works, check if your code against mine. If not, let me know the device and the version of the OS that you are testing.

#ifndef ApplicationUI_HPP_
#define ApplicationUI_HPP_

#include 

namespace bb
{
    namespace cascades
    {
        class Application;
        class LocaleHandler;
    }
}

class QTranslator;

/*!
 * @brief Application object
 *
 *
 */

class ApplicationUI : public QObject
{
    Q_OBJECT
public:
    ApplicationUI(bb::cascades::Application *app);
    virtual ~ApplicationUI() { }
    Q_INVOKABLE void fetchData();

private slots:
    void onSystemLanguageChanged();
private:
    QTranslator* m_pTranslator;
    bb::cascades::LocaleHandler* m_pLocaleHandler;

};

#endif /* ApplicationUI_HPP_ */

applicationui. HPP

#include "applicationui.hpp"

#include 
#include 
#include 
#include 
#include 
#include 

using namespace bb::cascades;

static AbstractPane *root = 0;

ApplicationUI::ApplicationUI(bb::cascades::Application *app) :
        QObject(app)
{
    // prepare the localization
    m_pTranslator = new QTranslator(this);
    m_pLocaleHandler = new LocaleHandler(this);

    bool res = QObject::connect(m_pLocaleHandler, SIGNAL(systemLanguageChanged()), this, SLOT(onSystemLanguageChanged()));
    // This is only available in Debug builds
    Q_ASSERT(res);
    // Since the variable is not used in the app, this is added to avoid a
    // compiler warning
    Q_UNUSED(res);

    // initial load
    onSystemLanguageChanged();

    // Create scene document from main.qml asset, the parent is set
    // to ensure the document gets destroyed properly at shut down.
    QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);

    // Create root object for the UI
    root = qml->createRootObject();

    // Set created root object as the application scene
    app->setScene(root);

    qml->setContextProperty("app", this);

}

void ApplicationUI::onSystemLanguageChanged()
{
    QCoreApplication::instance()->removeTranslator(m_pTranslator);
    // Initiate, load and install the application translation files.
    QString locale_string = QLocale().name();
    QString file_name = QString("SupportListView_%1").arg(locale_string);
    if (m_pTranslator->load(file_name, "app/native/qm")) {
        QCoreApplication::instance()->installTranslator(m_pTranslator);
    }
}

void ApplicationUI::fetchData()
{

    QVariantMap dataName;
    dataName["name"] = "Martin";
    ListView* listView = root->findChild((const QString) "sectionlistview");
    GroupDataModel* model = new GroupDataModel(QStringList() << "name");
    model->clear();
    model->setGrouping(ItemGrouping::None);
    model->insert(dataName);
    listView->setDataModel(model);
}

applicationui.cpp

import bb.cascades 1.2

Page {
    Container {
        //Todo: fill me with QML
        Label {
            // Localized text with the dynamic translation and locale updates support
            text: qsTr("Hello World") + Retranslate.onLocaleOrLanguageChanged
            textStyle.base: SystemDefaults.TextStyles.BigText
        }
        Button {
            text: "Fetch Data"
            onClicked: {
                app.fetchData();
            }
        }
        ListView {
            id: sectionlistview
            objectName: "sectionlistview"

            ///dataModel: groupDataModel
            listItemComponents: [
                ListItemComponent {
                    id: row
                    type: "item"
                    CustomListItem {
                        dividerVisible: true
                        highlightAppearance: HighlightAppearance.Default
                        Container {
                            opacity: 0.9
                            background: Color.create("#c0c0c0")
                            layout: StackLayout {
                                orientation: LayoutOrientation.TopToBottom
                            }
                            Label {
                                text: ListItemData.name
                                textStyle.base: myStyle.style
                                textStyle.color: Color.create("#ffffff")
                            }
                        }
                    }

                }
            ]
        }
    }
}

hand. QML

Good luck!

Martin

Tags: BlackBerry Developers

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