QML and C++ intergration

Question

This is my first post on this forum , just started the BB 10 development and also C ++ as I am a Java Person. I am having some problem in QML and C++ intergration

Here what I am trying to do:

I have login page , on login button click my new page (which is a navigation pane ) gets open without any issue here is the method I use

void Integration:penNextPage() {
    printLog("-- open second page (a navigation pane ");
    new SecondPageHndlr (appRefrence);
}

Here is what I am doing in SecondPageHndlr class :

SecondPageHndlr.cpp
#include "SecondPageHndlr.hpp"
#include "ThirdPageHndlr.hpp"
#include <bb/cascades/Application>
#include <bb/cascades/QmlDocument>
#include <bb/cascades/AbstractPane>
#include <bb/cascades/NavigationPane>
#include <bb/cascades/Page>
#include <bb/cascades/Sheet>
#include <QObject>
#include <QIODevice>
#include <iostream.h>
#include <string.h>
#include <stdio.h>
using namespace bb::cascades;
SecondPageHndlr::SecondPageHndlr(bb::cascades::Application *app)
: QObject(app){
    try{
            QmlDocument *secondQml = QmlDocument::create("asset:///SecondPage.qml");
            if (!secondQml->hasErrors()) {
                NavigationPane* page = secondQml->createRootObject<NavigationPane>();
                if (page)
                {
                    printLog("second page view . page is not  null ");
                    //make this c++ file accessable from the dashboardviewn.qml
                    pane = page;
                    secondQml->setContextProperty("second", this );
                    app->setScene(page);
                }
                else
                    printLog("page is null ");
            }
            else
                printLog("Error in second page view QML");
        }
        catch (std::exception& e)
        {
            printLog("-------- Exception");
            std::cout << "Exception: " << e.what();
        }
}
void SecondPageHndlr::showThirdScreen(){
    printLog("-- open Third page (a navigation pane pushes a new page");
    new ThirdPageHndlr (pane);
}
void SecondPageHndlr::printLog(const char *str){
    cout <<"\n" << str ;
    printf("" ,1);
    fflush(stdout);
}

Now when from this second screen I try to open the third page it would not work at all kindly see the code and tell me what em doing wrong

If your problem is about qml integration, You should show your qml code. Btw, i'd recommend to log with qDebug()<<"your log "; — Benoit, Jun 18 '13 at 21:49

score 0 · Answer 1 · answered Jul 09 '13 at 04:57

You are already using navigation pane then there is no issue with opening any other pages. See the following qml code

import bb.cascades 1.0

NavigationPane {
    id: navigationPane
    Page {
        // page with a picture thumbnail
        Container {
            background: Color.Gray
            layout: DockLayout {
            }
            Button {
                horizontalAlignment: HorizontalAlignment.Center
                verticalAlignment: VerticalAlignment.Center
                text: qsTr("Show detail")
                onClicked: {
                    // show detail page when the button is clicked
                    var page = secondPageDefinition.createObject();
                    console.debug("pushing detail " + page)
                    navigationPane.push(page);
                }
                  attachedObjects: [
                    ComponentDefinition {
                        id: secondPageDefinition
                        source: "DetailsPage.qml"
                    }
                ]
            }
        }
    }

}

DetailsPage.qml

Page{
  Label{
text: qsTr("Second Page")
}

}

QML and C++ intergration

1 Answers1