java - 如何在javafx中使用节点的宽度制作动画/过渡？

Question

我想用节点的“宽度”制作动画。

在本例中，我的节点是“AnchorPane”。

我尝试在javafx中制作一个抽屉导航。

没有属性“width Property()”？

new Key Value (node.width Property (), 1, WEB_EASE)

node.widthProperty().getValue() 未找到

我的代码:

public void changeWidth(final Node node, double width) {
    this.node = node;
    this.timeline = TimelineBuilder.create()
        .keyFrames(
            new KeyFrame(Duration.millis(20),    
                new KeyValue(    going here?   , width, WEB_EASE)
            )
        )
        .build();

    setCycleDuration(Duration.seconds(5));
    setDelay(Duration.seconds(0));
}

“不透明度”属性示例:

new KeyValue(node.opacityProperty(), 1, WEB_EASE)

我的类 ConfigAnimationViewPane:

public class ConfigAnimationViewPane extends Transition {
    protected static final Interpolator WEB_EASE = Interpolator.EASE_BOTH;
    protected AnchorPane node;
    protected Timeline timeline;
    private boolean oldCache = false;
    private CacheHint oldCacheHint = CacheHint.DEFAULT;
    private final boolean useCache = true;



    /**
     * Called when the animation is starting
     */
    protected void starting() {
        if (useCache) {
            oldCache = node.isCache();
            oldCacheHint = node.getCacheHint();
            node.setCache(true);
            node.setCacheHint(CacheHint.SPEED);
        }
    }

    /**
     * Called when the animation is stopping
     */
    protected void stopping() {
        if (useCache) {
            node.setCache(oldCache);
            node.setCacheHint(oldCacheHint);
        }
    }

    @Override protected void interpolate(double d) {
        timeline.playFrom(Duration.seconds(d));
        timeline.stop();
    }

}

这是小米 Controller :

将菜单移至左侧(神秘)

LeftTransition leftTransition = new LeftTransition();
                leftTransition.OpenMenu(list1);
                leftTransition.play();

在这里我想放置我的尺寸“AnchorPane”。(设置我的“anchorpane”的宽度)

 /*ViewPaneTransition paneTransition = new ViewPaneTransition();
            paneTransition.CloseMenu(viewPane, width );
            paneTransition.play();*/

Answer 1

这是 java 9 的一个工作示例。它会更改宽度和高度(如果不需要，只需删除高度线)

widthProperty 是只读的，因此您必须根据需要设置 maxWidth 或 minWidth 开关。时间轴上的延迟时长默认为0，无需设置，循环时长根据关键帧时长计算。

public void changeSize(final Pane pane, double width, double height) {
    Duration cycleDuration = Duration.millis(500);
    Timeline timeline = new Timeline(
            new KeyFrame(cycleDuration,
                    new KeyValue(pane.maxWidthProperty(),width,Interpolator.EASE_BOTH)),
            new KeyFrame(cycleDuration,
                    new KeyValue(pane.maxHeightProperty(),height,Interpolator.EASE_BOTH))
            );

    timeline.play();
    timeline.setOnFinished(event->{
       /* insert code here if you need */
    });
}