//正面视图 public Node frontNode; //反面视图 public Node backNode; //是否翻转 boolean flipped = false; //翻转角度 DoubleProperty time = new SimpleDoubleProperty(Math.PI / 2); //正面翻转特效 PerspectiveTransform frontEffect = new PerspectiveTransform(); //反面翻转特效 PerspectiveTransform backEffect = new PerspectiveTransform();

private void create() {         time.addListener(new ChangeListener() {             @Override             public void changed(ObservableValue<? extends Number> arg0,                     Number arg1, Number arg2) {                 setPT(frontEffect, time.get());                 setPT(backEffect, time.get());             }         });         anim.getKeyFrames().addAll(frame1, frame2);         backNode.visibleProperty().bind(                 Bindings.when(time.lessThan(0)).then(true).otherwise(false));         frontNode.visibleProperty().bind(                 Bindings.when(time.lessThan(0)).then(false).otherwise(true));         setPT(frontEffect, time.get());         setPT(backEffect, time.get());         frontNode.setEffect(frontEffect);         backNode.setEffect(backEffect);         getChildren().addAll(backNode, frontNode);     }

private void setPT(PerspectiveTransform pt, double t) {         double width = 200;         double height = 200;         double radius = width / 2;         double back = height / 10;         pt.setUlx(radius - Math.sin(t) * radius);         pt.setUly(0 - Math.cos(t) * back);         pt.setUrx(radius + Math.sin(t) * radius);         pt.setUry(0 + Math.cos(t) * back);         pt.setLrx(radius + Math.sin(t) * radius);         pt.setLry(height - Math.cos(t) * back);         pt.setLlx(radius - Math.sin(t) * radius);         pt.setLly(height + Math.cos(t) * back);     }

KeyFrame frame1 = new KeyFrame(Duration.ZERO, new KeyValue(time,             Math.PI / 2, Interpolator.LINEAR));     KeyFrame frame2 = new KeyFrame(Duration.seconds(1),             new EventHandler() {                 @Override                 public void handle(ActionEvent event) {                     flipped = !flipped;                 }             }, new KeyValue(time, -Math.PI / 2, Interpolator.LINEAR));

ImageView image1 = new ImageView(new Image(getClass()                 .getResourceAsStream("lion1.png"))); ImageView image2 = new ImageView(new Image(getClass()                 .getResourceAsStream("lion2.png"))); FlipView flip = new FlipView(image1, image2);