（翻译）第二十三回 JavaFX2.0 超链接Hyperlink

Example 17-1 Typical Hyperlink

Hyperlink link = new Hyperlink();link.setText("http://example.com");link.setOnAction(new EventHandler<ActionEvent>() {    @Override    public void handle(ActionEvent e) {        System.out.println("This link is clicked");    }});

Example 17-2 Using Hyperlinks to VIew Images

import javafx.application.Application;import javafx.event.ActionEvent;import javafx.event.EventHandler;import javafx.scene.*;import javafx.scene.control.*;import javafx.scene.image.Image;import javafx.scene.image.ImageView;import javafx.scene.layout.VBox;import javafx.stage.Stage; public class Main extends Application {     final static String[] imageFiles = new String[]{        "product.png",        "education.png",        "partners.png",        "support.png"    };    final static String[] captions = new String[]{        "Products",        "Education",        "Partners",        "Support"    };    final ImageView selectedImage = new ImageView();    final ScrollPane list = new ScrollPane();    final Hyperlink[] hpls = new Hyperlink[captions.length];    final Image[] images = new Image[imageFiles.length];     public static void main(String[] args) {        Application.launch(args);    }     @Override    public void start(Stage stage) {        Scene scene = new Scene(new Group());        stage.setTitle("Hyperlink Sample");        stage.setWidth(300);        stage.setHeight(200);         selectedImage.setLayoutX(100);        selectedImage.setLayoutY(10);         for (int i = 0; i < captions.length; i++) {            final Hyperlink hpl = hpls[i] = new Hyperlink(captions[i]);            final Image image = images[i] = new Image(                getClass().getResourceAsStream(imageFiles[i])            );            hpl.setOnAction(new EventHandler<ActionEvent>() {                @Override                public void handle(ActionEvent e) {                    selectedImage.setImage(image);                }            });        }         final Button button = new Button("Refresh links");        button.setOnAction(new EventHandler<ActionEvent>() {                @Override                public void handle(ActionEvent e) {                    for (int i = 0; i < captions.length; i++) {                        hpls[i].setVisited(false);                        selectedImage.setImage(null);                    }                }            });         VBox vbox = new VBox();        vbox.getChildren().addAll(hpls);        vbox.getChildren().add(button);        vbox.setSpacing(5);         ((Group) scene.getRoot()).getChildren().addAll(vbox, selectedImage);        stage.setScene(scene);        stage.show();    }}

Example 17-3 Refreshing the HyperlInks

final Button button = new Button("Refresh links");button.setOnAction(new EventHandler<ActionEvent>() {    @Override    public void handle(ActionEvent e) {       for (int i = 0; i < captions.length; i++) {           hpls[i].setVisited(false);           selectedImage.setImage(null);       }    }});