qtsymbian

Transparent QWidget/QScrollArea background style setting has no effect

This question relates to

I'm asking in here because I believe the SO community might have a way to fix this behavior.

So I like to set the background color of a ScrollArea to either being transparent or to a custom background image as it will contain some banners. I got it running in the Qt Creator (Designer) already! :-):

Qt Creator sample

But when deploying the app to the simulator it won't work, the are stays gray, dark gray:

Emulator sample

Here is my layout tree:

Layout Tree

And here is the stylesheet I'm using (attached & set to the MainWindow):

QMainWindow {
    background: transparent url(:/ui/designs/images_from_android/bg_plain_empty.png) top left;
}
QWidget#centralWidget {
    background-color: transparent;
}
QPushButton {
    color: red;
    border: 1px solid green;
}
QFrame#top_header {
    background: transparent url(:/ui/designs/images_from_android/bg_title_bar_landscape.png) top left repeat-x;
}
QWidget#top_banner_scroll1,
QWidget#top_banner_scroll2 {
    background: transparent url(:/ui/designs/images_from_android/stripe_bg.png) top left repeat-x;
}

This is quite puzzling. And as Qt Designer is showing me the proper design...

Solution

  • Can you try scrollArea.setStyleSheet("background-color:transparent;"); It works for me.