JavaFX Scene With Shapes

If a scene has only shapes, requestFocus() must be used explicitly before being able to process keyboard events.

(Yakov Fain's Blog)

I tried it myself! See below.

SceneWithShapes.java

FXMLDocument.FXML

	<?xml version="1.0" encoding="UTF-8"?>
	<?import javafx.scene.shape.*?>
	<?import java.lang.*?>
	<?import java.util.*?>
	<?import javafx.scene.*?>
	<?import javafx.scene.control.*?>
	<?import javafx.scene.layout.*?>
	<Group onKeyPressed="#keyHandler" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="scenewithshapes.FXMLDocumentController">
	<children>
	<Sphere layoutX="50.0" layoutY="50.0" radius="50.0" />
	</children>
	</Group>

view raw FXMLDocument.fxml hosted with ❤ by GitHub

FXMLDocumentController.java

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/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package scenewithshapes; import java.net.URL; import java.util.ResourceBundle; import javafx.event.ActionEvent; import javafx.fxml.FXML; import javafx.fxml.Initializable; import javafx.scene.control.Label; import static javafx.scene.input.KeyCode.A; import javafx.scene.input.KeyEvent; /** * * @author Cristina */ public class FXMLDocumentController implements Initializable { @Override public void initialize(URL url, ResourceBundle rb) { // TODO } public void keyHandler(KeyEvent event){ System.out.println("A Key was pressed"); } }

Bibliography

http://yakovfain.com/2015/02/13/javafx-8-the-keyboard-events-are-not-being-processed-if-a-scene-has-only-shapes/

http://hilite.me/