X is not a subclass of javafx.application.Application

[Robert Krüger]

Hi,

I am trying to get my first gradle build for mx JFX iOS app to run.

I set up the code as in the Contractr FX iOS example, i.e.

---

public class MyIOSApp extends UIApplicationDelegateAdapter {

    public static class MyIOSJFXApplication extends MyJFXApplication{

 

...

    }

..

    public boolean didFinishLaunching(UIApplication application,

                                      UIApplicationLaunchOptions launchOptions) {

        Thread launchThread = new Thread() {

            @Override

            public void run() {

                Application.launch(MyIOSJFXApplication.class);

            }

        };

        launchThread.setDaemon(true);

        launchThread.start();

        return true;

    }

    public static void main(String[] args) throws Exception {

        try (NSAutoreleasePool pool = new NSAutoreleasePool()) {

            UIApplication.main(args, null, MyIOSApp.class);

        }

    }

}

---

The error I get launching is:

 Error: MyIOSApp is not a subclass of javafx.application.Application

Of course it isn't because it's the UIApplicationDelegateAdapter implementation.

In my gradle build file I have this:

apply plugin: 'org.javafxports.jfxmobile'

mainClassName = 'my.package.MyIOSApp'

Now, it looks as if the mainClassName is that what is checked for being a subclass of javafx.application.Application, which I find surprising, because I thought the Application class was specified programatically in the code above.

Am I confusing things here? 

Is there any example of a working JFX iOS gradle build setup? In the robovm samples I could only find Contractr but that is maven-based.

And I am still unsure if the jfxmobile and the robovm plugin and are alternatives for each other and I am mixing up stuff here. If robovm can do that for me, i.e. build an iOS JFX application, I want to do it the robovm way but where can I find how?

Thanks,

Robert

[Niklas Therning]

You are mixing the old way (using your own launcher which extends from UIApplicationDelegateAdapter) and the new way (using jfxmobile). With the jfxmobile Gradle plugin you only have to specify a mainClassName in your Gradle file and the launcher class provided by the plugin will be used. The class you specify as mainClassName is the class which extends from javafx.application.Application.

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