NavigationPane not burst

I'm trying to rewright of my JavaScript application to C + c++ / QML. I'm new to QML, but I thought it wise to write the UI in a QML and then the logic and the C++ user interface controls. The problem I see is when I call the function pop() of C++, the screen never appears. Someone at - it ideas?

Main.cpp

#include "wpapp.hpp"

// include JS Debugger / CS Profiler enabler
// this feature is enabled by default in the debug build only
#include 

using ::bb::cascades::Application;

Q_DECL_EXPORT int main(int argc, char **argv)
{
    // this is where the server is started etc
    Application app(argc, argv);

    WPApp *wpApp = new WPApp (&app);

    // we complete the transaction started in the app constructor and start the client event loop here
    return Application::exec();
    // when loop is exited the Application deletes the scene which deletes all its children (per qt rules for children)
}

wpapp. HPP

// Application with UI adaptability support template
#ifndef WPApp_HPP_
#define WPApp_HPP_

#include 
#include 
#include 
#include 
#include 
#include "library/StatData.h"

using std::vector;
using std::string;
using namespace bb::cascades;

namespace bb {
    namespace cascades {
        class Application;
    }
}

/*!
 * @brief Application pane object
 *
 *Use this object to create and init app UI, to create context objects, to register the new meta types etc.
 */
class WPApp : public QObject
{

    Q_OBJECT
public:

    WPApp(Application *);

    virtual ~WPApp();

    Q_INVOKABLE void addStats(QString);
    Q_INVOKABLE void showAddScreen();

    void addRemoveStat(string identifiers, bool add);

private:
    vector mActiveStats;
    Page *mRootPane;
    NavigationPane *mNavPane;
    Application *mApp;
};

#endif /* WPApp_HPP_ */

wpapp.cpp

// Application with UI adaptability support template
#include "wpapp.hpp"
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

#include "Utilities.h"
#include "connector/WConnector.h"
#include "library/StatData.h"

using std::string;
using std::vector;
using namespace bb::cascades;
using namespace bb::system;

WPApp::WPApp(Application *app) :
        QObject(app)
    {
    QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
    qml->setContextProperty("app", this);
    //qml->setContextProperty("second", m_pane);
    if (!qml->hasErrors()) {

        mRootPane = qml->createRootObject();

        mNavPane = new NavigationPane();

        // set created root object as a scene
        //mNavPane->push(mRootPane);
        //Application::instance()->setScene(mNavPane);
        mApp = app;
        mApp->setScene(mRootPane);
    }
}

WPApp::~WPApp() {

}

void WPApp::addStations(QString text) {
    SystemToast *st = new SystemToast(Application::instance());

    string sIdentifiers = text.toStdString();
    NavigationPane *mNavPane = mNavPane->findChild("navigationPane");
    int ct = mNavPane->count();
    mNavPane->pop();
    st->setBody(text);
    st->setPosition(SystemUiPosition::MiddleCenter);
    st->show();
    addRemoveStat(sIdentifiers, true);

}

void WPApp::showAddStat() {
    QmlDocument *qml = QmlDocument::create("asset:///AddScreen.qml").parent(
            this);
    qml->setContextProperty("app", this);
    Page *page = qml->createRootObject();
    mNavPane->push(page);
}

void WPApp::addRemoveStat(string sIdentifiers, bool bAdd) {

}

Main.QML

// Application with UI adaptability support template
import bb.cascades 1.0
import bb.system 1.0

NavigationPane {
    backButtonsVisible: true
    id: navigationPane
    objectName: navPane

// create application UI page
Page {
    actions: [
        ActionItem {
            title: "Add"
            onTriggered: {
                //navigationPane.push(newPage);
                app.showAddScreen();
            }
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "images/ic_add.png"
        },
        ActionItem {
            title: "Refresh"
            onTriggered: app.initiateRequest()
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "images/ic_rotate.png"
        },
        ActionItem {
            title: "Remove All"
            onTriggered: app.initiateRequest()
            imageSource: "images/ic_delete.png"
        },
        ActionItem {
            title: "Settings"
            onTriggered: app.initiateRequest()
            imageSource: "images/ic_settings.png"
        }
    ]

    Container {
        layout: DockLayout {
        }
        AppBackground {
            // setup application background
            background: Color.Black
            verticalAlignment: VerticalAlignment.Fill
            horizontalAlignment: HorizontalAlignment.Fill
        }
        Container {
            horizontalAlignment: HorizontalAlignment.Fill
            Container {
                layoutProperties: StackLayoutProperties {
                    spaceQuota: 1.0
                }
                layout: DockLayout {
                }
                verticalAlignment: VerticalAlignment.Fill
                horizontalAlignment: HorizontalAlignment.Fill
                Container {
                    property int padding: 10
                    layout: StackLayout {
                        id: stationStacks

                        // change layout direction according to current device orientation
                        // this feature is disabled for 720x720 devices in current template
                        // see: assets/720x720/AppOrientationHandler.qml
                        orientation: (orientationHandler.orientation == UIOrientation.Portrait) ? LayoutOrientation.TopToBottom : LayoutOrientation.LeftToRight
                    }
                    // create 9-sliced frame for this container
                    background: frame.imagePaint

                    topPadding: padding
                    bottomPadding: padding
                    leftPadding: padding
                    rightPadding: padding
                    verticalAlignment: VerticalAlignment.Center
                    horizontalAlignment: HorizontalAlignment.Center
                }
            }
        }
        attachedObjects: [
            AppOrientationHandler {
                // custom orientation handler
                // the different handler is used for 720x720 in this template
                // to disable oriantation adaptability for this kind of devices
                id: orientationHandler
            }
        ]

    }
    attachedObjects: [
        // Create the ComponentDefinition that represents the custom
        // component in myPage.qml
        ComponentDefinition {
            id: addStation
            source: "AddScreen.qml"
        }
    ]
} // Page
} // NavigationPane

AddScreen.qml

import bb.cascades 1.0
import bb.system 1.0

Page {
    actions: [
        ActionItem {
            title: "Search"
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "images/ic_search.png"
        },
        ActionItem {
            title: "Add"
            onTriggered: {
                app.addStat(identifierInput.text)
            }
            ActionBar.placement: ActionBarPlacement.OnBar
            imageSource: "images/ic_add.png"
        }
    ]
    titleBar: TitleBar {
        title: "Add Stats"
        appearance: TitleBarAppearance.Plain
    }

    Container {
        layout: StackLayout {
            orientation: LayoutOrientation.TopToBottom
        }
        background: Color.DarkGray
        Container {
            layout: StackLayout {
                orientation: LayoutOrientation.LeftToRight
            }

            Label {
                text: "Identifiers:"
                textFormat: TextFormat.Html
            }

            TextField {
                id: identifierInput
                hintText: "XXX YYY"
                horizontalAlignment: HorizontalAlignment.Left
                verticalAlignment: VerticalAlignment.Top
                inputMode: TextFieldInputMode.Text
                /*onTextChanging: {
                    app.mNewIdentifiers = text
                    console.log("Idents " + app.mNewIdentifiers)
                }*/
            }
        }
        Container {
            layout: StackLayout {
                orientation: LayoutOrientation.TopToBottom
            }
            Label {
                text: ""
            }
            Picker {
                id: favoritesPicker
                title: "Favorites"
            }
        }
    }// Container
} // Page

Hello
Add quotes around objectName:

objectName: "navigationPane.

Tags: BlackBerry Developers

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