Where does the automatic splash screen come from under ios

clogwog

I created a "Qt Quick Application" using the QtCreator 'wizard' and the main it generates looks like:

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    QQmlApplicationEngineQQmlApplicationEngine engine;
    engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
     return app.exec();
}

when i run it on ios it automatically first shows a splash screen with the name of the application in text before it continues with the main.qml.

where does this splash screen come from ? i can not find it anywhere in the code and/or resources.
what is the normal way of customising this splash screen ? do i just implement it like described here: http://doc.qt.io/qt-5/qsplashscreen.html#details and the auto generated splash screen will no longer be used ?

patrikd

Hi,
the splashscreen comes from ios 8.x. In xcode you can set it where you also set the app icon (LaunchImage).
I don't know a way to deactivate it.
best,
patrik

clogwog

thanks for that. makes my search a bit easier.

i tried adding the splash screen as described here: http://doc.qt.io/qt-5/qsplashscreen.html#details but it disn't stop the ios splash screen

juddster

As patrikd said, what you're seeing on iOS is what's called a Launch Image. QSplashScreen will not show instead of the launch image.

I think what you're looking for is discussed here: http://doc.qt.io/qt-5/platform-notes-ios.html#launch-images

You will basically need a launch image for each orientation your app supports and add them to the Info.plist file.

clogwog

@patrikd thanks for that.
noticed that i shouldn't be using it as a splash screen but rather as a preview of what will load once the real window is shown.

followed the instructions at http://doc.qt.io/qt-5/platform-notes-ios.html#launch-images by creating the

LaunchImage-iOS7-568h@2x.png 
LaunchImage-iOS7-Landscape.png
LaunchImage-iOS7-Landscape@2x.png
LaunchImage-iOS7-Portrait.png 
LaunchImage-iOS7-Portrait@2x.png 
LaunchImage-iOS7@2x.png

images and adding them to the .pro file as :

ios {
    QMAKE_INFO_PLIST = iOS_BundleData/Info.plist
   
    ios_icon.files = $$files($$PWD/iOS_BundleData/AppIcon*.png)
    QMAKE_BUNDLE_DATA += ios_icon

   launch_images.files = $$PWD/ios/Launch.xib $$files($$PWD/iOS_BundleData//LaunchImage*.png)
   QMAKE_BUNDLE_DATA += launch_images
}

and adding them to the info.plist (see below for info.plist file)

but it still shows up with the name of my application. did a clean rebuild but seem to be missing something. Is there an example that uses a launch image to see what i'm doing wrong ?

info.plist follows:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>UILaunchImages</key>
<array>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{320, 568}</string>
    </dict>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{320, 480}</string>
    </dict>
</array>
<key>UILaunchImages~ipad</key>
<array>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7-Landscape</string>
        <key>UILaunchImageOrientation</key>
        <string>Landscape</string>
        <key>UILaunchImageSize</key>
        <string>{768, 1024}</string>
    </dict>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7-Portrait</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{768, 1024}</string>
    </dict>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{320, 568}</string>
    </dict>
    <dict>
        <key>UILaunchImageMinimumOSVersion</key>
        <string>7.0</string>
        <key>UILaunchImageName</key>
        <string>LaunchImage-iOS7</string>
        <key>UILaunchImageOrientation</key>
        <string>Portrait</string>
        <key>UILaunchImageSize</key>
        <string>{320, 480}</string>
    </dict>
</array>
<key>CFBundleIconFile</key>
<string></string>
   .........

Vega4

facing the exact same issue, have you found a solution?