Cascades Development

[lyon819]

Purpose:

Want to get screen height and width for .qml.

Problme:

When I try to get screen width, .qml code shows error.

or

When I try to use .qml, screen properties shows error.

code:

using namespace bb::cascades;
using namespace bb::device;??

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

// localization support
QTranslator translator;
QString locale_string = QLocale().name();
QString filename =****
if (translator.load(filename, "app/native/qm")) {
app.installTranslator( &translator );
}

// Load the UI description from main.qml
QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(&app);

DisplayInfo display;
int width = display.pixelSize().width();
int height = display.pixelSize().height();

Does anyone know how to use device and cascade in one project.

Thanks your attention.

[mwoolley]

Hi

I'm not clear exactly where you are seeing errors.

However the following code works for me:

// Default empty project template
#include "Test.hpp"

#include <bb/cascades/Application>
#include <bb/cascades/QmlDocument>
#include <bb/cascades/AbstractPane>
#include <bb/device/DisplayInfo.hpp>

using namespace bb::cascades;
using namespace bb::device;

Test::Test(bb::cascades::Application *app)
: QObject(app)
{

    DisplayInfo display;
    qDebug() << "XXXX display id is " << display.displayId();
    qDebug() << "XXXX display name is " << display.displayName();
    qDebug() << "XXXX display size is " << display.pixelSize().width() << ", " << display.pixelSize().height();

    // 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:///main.qml").parent(this);

    // create root object for the UI
    AbstractPane *root = qml->createRootObject<AbstractPane>();
    // set created root object as a scene
    app->setScene(root);
}

 Make sure you add the following line to your project's .pro file 

LIBS += -lbbdevice

per the documentation: http://developer/cascades/reference/bb__device__displayinfo.html

Hope this helps!

[lyon819 · Accepted solution]

LIBS += -lbbdevice is my issue. 

After I add the LIBS += -lbbdevice under HEADERS += ../src/*.hpp ../src/*.h for the .pro file.

No warning comes out.

Thank you a lot, Solved it.