How to display a splash screen in Qt

Article Metadata

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Tested with

Devices(s): Emulator

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Compatibility

Platform(s): S60 3rd Edition FP1, S60 3rd Edition FP2, S60 5th Edition

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Article

Keywords: QSplashScreen

Created: (12 Jan 2009)

Last edited: vkmunjpara (17 Sep 2009)

Overview

This code snippet demonstrates how to display a splash screen before your application loaded in Qt for S60.

A splash screen is a widget that is usually displayed when an application is being started. Splash screens are often used for applications that have long start up times (e.g. database or networking applications that take time to establish connections) to provide the user with feedback that the application is loading. The splash screen may usually appear in the center of the screen.QSplashscreen

Preconditions

• Download the latest Qt for S60 distribution from Qt.
• Install Qt for S60:Installing Qt on S60
• Check this link for installation guide: How to install the package.
• Go through this article: Getting started with Qt for S60

Various Function

• Makes the splash screen wait until the widget mainWin is displayed

 splash.finish(&window);

• Draws the message text onto the splash screen with color color and aligns the text according to the flags in alignment

splash.showMessage("Wait...");

Source File

#include <QApplication>
#include <QPixmap>
#include <QSplashScreen>
#include <QWidget>
#include <QMainWindow>
int main(int argc, char *argv[])
{
     QApplication app(argc, argv);
     QPixmap pixmap("c://designer.png");
     QSplashScreen splash(pixmap);
     splash.show();
     splash.showMessage("Wait...");
     qApp->processEvents();//This is used to accept a click on the screen so that user can cancel the screen
 
     QMainWindow window;
     window.setStyleSheet("* { background-color:rgb(199,147,88); padding: 7px}}");
 
     window.show();
     splash.finish(&window);
     return app.exec();
 
}

Screenshot

More about QSplashscreen.

More about QSplashscreen.