JavaFX Canvas not picking up key events

Question

I have the following code showing a JavaFX Canvas with 3 consecutive hello worlds

    StackPane root = new StackPane();

        Canvas canvas = new Canvas(2         


        

Answer 1

You need

canvas.setFocusTraversable(true);

as canvases do not have focusTraversable set by default.

Answer 2

Add the following line:

canvas.addEventFilter(MouseEvent.ANY, (e) -> canvas.requestFocus());

After you click your canvas, the canvas will request the focus and recognice key events.