[Solved] How to make full screen in qt quick?

[menngogmail.com]

I use Qt 5.2.1 with Qt Creator recently. I get full screen for qt widgets application with code:

@QApplication a(argc, argv);
Widget w;
w.showFullScreen();
w.show();
return a.exec();@

For qt quick application with code below, no full screen is displayed.

@QGuiApplication app(argc, argv);
QtQuick2ApplicationViewer viewer;
viewer.setMainQmlFile(QStringLiteral(“qml/main.qml”));
viewer.showFullScreen();
viewer.showExpanded();
return app.exec();@

Does anyone know how to get full screen in qt quick? Thanks a lot.

[Eddy]

this should do :

@
QGuiApplication app(argc, argv);
QtQuick2ApplicationViewer viewer;
viewer.setMainQmlFile(QStringLiteral("yourFile.qml"));
viewer.showExpanded();

return app.exec();

}
@

[menngogmail.com]

Thanks for your reply. It has not worked in Windows 7, 8 and Android.
Maybe another way is building a widgets application and using QDeclarativeItem? I'm not sure about it. Did anyone meet the same problem?

[menngogmail.com]

It worked if delete viewer.showExpanded();

[Eddy]

Yes, you only need one of them:

@
viewer.showFullScreen();
viewer.showExpanded();
@

Not both

If you consider your problem solved, please alter the title of this thread and prepend [solved] to it

[cdietz]

Alternatively, you can solve this using only qml; this has the advantage that the qml content is initially rendered in an already fullscreen window and signal onWindowStateChanged is not called twice:

@
import QtQuick.Window 2.2 // Window.FullScreen
import QtQuick.Controls 1.3 // ApplicationWindow

// Note for OS X: using Window instead of ApplicationWindow only hides the dock (and shows it again when app is quit)
ApplicationWindow {

id: mainWindow
visible: true   // this is mandatory

visibility: Window.FullScreen

onWindowStateChanged: {
    console.log( "onWindowStateChanged (Window), state: " + 
                          windowState );
}

}

@

[cdietz]

Alternatively, you can solve this using only qml; this has the advantage that the qml content is initially rendered in an already fullscreen window and signal onWindowStateChanged is not called twice:

@
import QtQuick.Window 2.2 // Window.FullScreen
import QtQuick.Controls 1.3 // ApplicationWindow

// Note for OS X: using Window instead of ApplicationWindow only hides the dock (and shows it again when app is quit)
ApplicationWindow {

id: mainWindow
visible: true   // this is mandatory

visibility: Window.FullScreen

onWindowStateChanged: {
    console.log( "onWindowStateChanged (Window), state: " + 
                          windowState );
}

}

@