JavaFX Native Bundle Splash Screen - maven

Question

I'm using the javafx-maven-plugin and IntelliJ IDEA on Windows 7.
I'm trying to get a splash screen to show while my JavaFX application boots up, like this:
I tried using the SplashScreen-Image manifest entry—and that works, but only if you click on the .jar—I'm deploying the application as a Native Bundle and so the user clicks an .exe (or a shortcut to an .exe) not the actual .jar.
When you click the .exe no splash screen is shown.
This SSCCE I made will help you help me.
If I'm deploying my app using the javafx-maven-plugin, (which, if I'm not mistaken, uses the JavaFX Packager Tool, which uses Inno Setup), how can I get a splash screen to show after the user clicks the .exe?
More Findings:
Looking at the installation directory, I find a .dll called runtime\bin\splashscreen.dll. Does that mean it can be done?

Answer 1

The native launcher does not respect that spash-screen, it is only when being invoked by the java-executable. As the native launcher is loading the JVM internally, this won't work.
I haven't found a proper way to get this working, not even with some preloaders. Maybe you can find this helpful: https://gist.github.com/FibreFoX/294012b16fa10519674b (please ignore the deltaspike-related stuff)
Copied code:
#Override
public void start(Stage primaryStage) throws Exception {
// due to the nature of preloader being ignored within native-package, show it here
SplashScreen splashScreen = new SplashScreen();
splashScreen.show(new Stage(StageStyle.TRANSPARENT));
// needed for callback
final SomeJavaFXClassWithCDI launcherThread = this;
// for splashscreen to be shown, its needed to delay everything else as parallel task/thread (it would block otherwise)
Task cdiTask = new Task<Void>() {
#Override
protected Void call() throws Exception {
// boot CDI after javaFX-splash (this will "halt" the application due to the work done by CDI-provider
bootCDI(launcherThread);
// push javaFX-work to javaFX-thread
Platform.runLater(() -> {
primaryStage.setTitle("Some Title");
// TODO prepare your stage here !
// smooth fade-out of slashscreen
splashScreen.fadeOut((ActionEvent event) -> {
primaryStage.show();
splashScreen.hide();
});
});
return null;
}
};
// run task
new Thread(cdiTask).start();
}
In short: I'm creating my splashscreen myself.
Disclaimer: I'm the maintainer of the javafx-maven-plugin