Regarding the Screen width and Height in Other Platforms

Pradeep Kumar

Hi,

I am using Android devices , to check the screen width and height in both Portrait and Landscape mode.

I am not getting the output as for portrait or landscape , its reversed, can u help me out where i have done mistake.

Output is :
in portrait mode :

portrait orientation >>>>>>>>>>>>>>>>>>>>
portrait width >>>>>>>>>>>>>>>>>> 1280
portrait height >>>>>>>>>>>>>>>>>> 703

in landscape mode:

landscape orientation >>>>>>>>>>>>>>>>>>>>
landscape width >>>>>>>>>>>>>>>>>> 800
landscape height >>>>>>>>>>>>>>>>>> 1172

Here is the code:

In constructor :

QScreen *m_screen = qApp->primaryScreen();

connect(m_screen,SIGNAL(orientationChanged(Qt::ScreenOrientation)),this,SLOT(getScreenOrientation(Qt::ScreenOrientation)));

m_screen->setOrientationUpdateMask(Qt::PortraitOrientation| Qt::LandscapeOrientation);

in the slot getScreenOrientation(Qt::ScreenOrientation)) :

qDebug () << "orientation :" << orientation <<  endl;

switch (orientation)
{
case Qt::PortraitOrientation :

    portraitValue();

    break;

case Qt::LandscapeOrientation :


    landscapeValue();

    break;

default :

    qDebug () << " unknown               >>>>>>>>>>>>>>>>>>>>" << endl;

    exit(0);
}

and depending on the mode i am calling the respective functions:

in the portraitValue(); function :

QScreen *screen = qApp->primaryScreen();

int width = screen->availableSize().width();
int height = screen->availableSize().height();


qDebug () << " portrait orientation  >>>>>>>>>>>>>>>>>>>>" << endl;

qDebug () << "portrait width >>>>>>>>>>>>>>>>>>" << width << endl;
qDebug () << "portrait height >>>>>>>>>>>>>>>>>>" << height << endl;

and in the landscapeValue(); function :

QScreen *screen1 = qApp->primaryScreen();

int width1 = screen1->availableSize().width();
int height1 = screen1->availableSize().height();

qDebug () << " landscape orientation >>>>>>>>>>>>>>>>>>>>" << endl;
qDebug () << " landscape width >>>>>>>>>>>>>>>>>>" << width1 << endl;
qDebug () << " landscape height >>>>>>>>>>>>>>>>>>" << height1 << endl;

Thanks,

jsulm

@Pradeep-Kumar said in Regarding the Screen width and Height in Other Platforms:

QScreen

Shouldn't you use http://doc.qt.io/qt-5/qscreen.html#size-prop ?
availableSize() dpocumentation:
"This property holds the screen's available size in pixels.

The available size is the size excluding window manager reserved areas such as task bars and system menus."

Pradeep Kumar

@jsulm

Thanks for the reply.

And as you can see when i am in Landscape mode , why the portraitValue() function is called

When the signal is emitted from the constructor.

Am i doing anything wrong in switch() statement

switch (orientation)
{
case Qt::PortraitOrientation :

portraitValue();

break;

case Qt::LandscapeOrientation :

landscapeValue();

break;

default :

qDebug () << " unknown               >>>>>>>>>>>>>>>>>>>>" << endl;

exit(0);

}

Thanks,

jsulm

@Pradeep-Kumar It is not the switch. I think you should use http://doc.qt.io/qt-5/qscreen.html#size-prop instead of availableSize().