I notice the word “workaround” :-) So you would agree it is a bug? And if so …. regression? I never noticed it before.
> On 23 Apr 2020, at 16:00, David Grieve <david.gri...@microsoft.com> wrote: > > Another possible workaround is to call Node#applyCss() before stage.show(). > There is an example in the Javadoc for the applyCss() method. > > -----Original Message----- > From: openjfx-dev <openjfx-dev-boun...@openjdk.java.net> On Behalf Of Dirk > Lemmermann > Sent: Wednesday, April 22, 2020 1:46 PM > To: OpenJFX <openjfx-dev@openjdk.java.net> > Subject: [EXTERNAL] White box / window flicker upon launch > > Hi everyone, > > is it just me or did something change in the launch behaviour of JavaFX > applications? It seems we are back to the old “grey box” bug of Swing where > the window would appear first before filling its content. I noticed the same > (but white) effect now for my JavaFX apps, especially when running on mobile > devices via Gluon. Once I saw it there I paid attention to it and also > noticed it when running my desktop apps (on MacOS). I must admit that I am > also not certain if it has been different before. Maybe I simply notice it > now? > > To verify run this little program. You have to pay close attention but if I > am not mistaken then the window first shows up with a white background before > showing its content, which is orange. > > Can somebody confirm? If so, I will create a bug ticket. > > Regards, > > Dirk > > > import javafx.application.Application; > import javafx.scene.Scene; > import javafx.scene.layout.VBox; > import javafx.stage.Stage; > > public class BugDemo extends Application { > > public void start(Stage stage) { > VBox root = new VBox(); > root.setStyle("-fx-background-color: orange;"); > Scene scene = new Scene(root, 1000, 800); > stage.setScene(scene); > stage.show(); > } > > public static void main(String[] args) { > launch(args); > } > }