如何撐滿父層

        VBox root = new VBox(canvasView);
        VBox.setVgrow(canvasView, javafx.scene.layout.Priority.ALWAYS);

在畫面開始後的Event(lifeCicry)

 Platform.runLater(()->{
 });

Observable 相關

ObservableValue

    public static class Data{
        public boolean zomLocVisible = true;
    }

    public final ObservableValue<Data> observer = new SimpleObjectProperty<Data>();

Bindings

SimpleIntegerProperty count = new SimpleIntegerProperty(5);

// Computed state (like useMemo)
var doubleCount = Bindings.createIntegerBinding(() -> count.get() * 2, count);