JavaFX：如何为窗格创建幻灯片动画效果（在透明舞台内）

Question

我想要一些指导方针，如何实现一个幻灯片在过渡的窗格时，用户按下按钮，就像材料设计做它的滑动菜单。

这是一个视频链接，说明了我的需要。

我试过ScaleTransition,TranslateTransition,但他们没有成功。

// swipeMenuPane is builded in SceneBuilder and it is hidden,
// opacity = 0.0 and setX() = -getPrefWidth();
@FXML AnchorPane swipeMenuPane;
@FXML Button menuButton;

menuButton.setOnMouseClicked(e-> {
    swipeMenuPane.setOpacity(1.0);
    swipeTransition.play()
});

TranslateTransition swipeTransition = new TranslateTransition();
swipeTransition.setNode(swipeMenuPane);
swipeTransition.setDuration(Duration.millis(500));
swipeTransition.setToX(swipeMenuPane.getPrefWidth());

我想在用户单击按钮时缩小锚窗格。

我错过了什么？

package com.helloworld;

import com.gluonhq.charm.glisten.animation.ShrinkExpandAnimation;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class HelloWorld extends Application {

    ShrinkExpandAnimation anim;

    @Override
    public void start(Stage stage) {        
        Button btn = new Button("Click Me!");
        btn.setOnMouseClicked(e-> {
            System.out.println("swiping...");
            anim.play();
        });

        AnchorPane pane = new AnchorPane();
        pane.setStyle("-fx-background-color: coral");
        pane.getChildren().add(btn);

        // false to shrink or true to expand
        anim = new ShrinkExpandAnimation(pane, false);

        Scene scene = new Scene(new StackPane(pane), 640, 480);

        stage.setScene(scene);
        stage.show();
    }
}

---更新2---

null

这是一个锚格（在其全宽处具有珊瑚色；展开）内的锚格（灰色的根格）。

这就是当你点击菜单按钮来缩小/隐藏它时会发生的情况。正如您所看到的，珊瑚色的窗格被缩小/隐藏了，但它的节点（标签、ImageView）没有缩小/隐藏

我发布了整个代码来重现您自己的问题：

public class SwipeMenuDemo extends Application {

    AnchorPane swapPane;
    Button btnMenu;
    boolean isExpanded = true;

    @Override
    public void start(Stage stage) {    
        Label swapPaneLabel = new Label("Expandable Pane");
        swapPaneLabel.setMinWidth(0);

        ImageView swapPaneImage = new ImageView("http://vignette1.wikia.nocookie.net/jfx/images/5/5a/JavaFXIsland600x300.png");
        swapPaneImage.setLayoutY(100);

        Label rootPaneLabel = new Label("Root Pane");
        rootPaneLabel.setStyle("-fx-font-size: 60;");
        rootPaneLabel.setLayoutX(180);
        rootPaneLabel.setLayoutY(180);

        swapPane = new AnchorPane();
        swapPane.setPrefSize(640, 440);
        swapPane.setMinWidth(0);
        swapPane.setLayoutY(40);
        swapPane.setStyle("-fx-background-color: coral; -fx-font-size: 52;");
        swapPane.getChildren().addAll(swapPaneImage, swapPaneLabel);

        btnMenu = new Button("Menu");
        btnMenu.setLayoutX(5);
        btnMenu.setLayoutY(5);
        btnMenu.setOnMouseClicked(e -> {
            if (isExpanded) hideSwapPane().play();
            else showSwapPane().play();
        });

        Button btnClose = new Button("Close");
        btnClose.setLayoutX(590);
        btnClose.setLayoutY(5);
        btnClose.setOnMouseClicked(e -> Platform.exit());

        AnchorPane rootPane = new AnchorPane();
        rootPane.setStyle("-fx-background-color: grey;");
        rootPane.getChildren().addAll(btnMenu, btnClose, rootPaneLabel, swapPane);

        Scene scene = new Scene(rootPane, 640, 480);

        stage.setScene(scene);
        stage.initStyle(StageStyle.UNDECORATED);
        stage.show();
    }

    private Animation hideSwapPane() {            
        btnMenu.setMouseTransparent(true);

        Animation collapsePanel = new Transition() {
            {
                setCycleDuration(Duration.millis(2500));
            }

            @Override
            protected void interpolate(double fraction) {
                swapPane.setPrefWidth(640 * (1.0 - fraction));
            }
        };

        collapsePanel.setOnFinished(e-> {
            isExpanded = false;
            btnMenu.setMouseTransparent(false);
        });

        return collapsePanel;
    }

    private Animation showSwapPane() {            
        btnMenu.setMouseTransparent(true);

        final Animation expandPanel = new Transition() {
            {
                setCycleDuration(Duration.millis(2500));
            }

            @Override
            protected void interpolate(double fraction) {
                swapPane.setPrefWidth(640 * fraction);
            }
        };

        expandPanel.setOnFinished(e-> {
            isExpanded = true;
            btnMenu.setMouseTransparent(false);
        });

        return expandPanel;
    }
}

这是我按下显示菜单，开始播放打开过渡时的“神器”……

我该怎么修好它？

Answer 1

我是示例视频的作者。我将重复我在视频评论中所做的回应：“您应该将其视为android中的导航抽屉，JavaFX中的导航抽屉将是一个带有两个子的AnchorPane，首先是一个StackPane，它相当于一个FrameLayout作为我们的主要内容，其中窗格的转换取决于从左侧菜单中选择的项，最后是一个ListView作为我们的左侧菜单，它的负TranslateX的宽度等于ListView。然后，当用户按下按钮时，您必须播放一个将translatex的值写成0的动画。“您不应该在两个动画（折叠面板、展开窗格）的插值方法中使用prefwidth()，因为子动画不调整大小，边距排列是AnchorPane具有的唯一限制。

看看我做的这个例子。

https://github.com/marconideveloper/leftsideMenuexample

public class FXMLDocumentController implements Initializable {

    @FXML
    private Button menu;
    @FXML
    private AnchorPane navList;
    @Override
    public void initialize(URL url, ResourceBundle rb) {
    //navList.setItems(FXCollections.observableArrayList("Red","Yellow","Blue"));
        prepareSlideMenuAnimation();
    }    

    private void prepareSlideMenuAnimation() {
        TranslateTransition openNav=new TranslateTransition(new Duration(350), navList);
        openNav.setToX(0);
        TranslateTransition closeNav=new TranslateTransition(new Duration(350), navList);
        menu.setOnAction((ActionEvent evt)->{
            if(navList.getTranslateX()!=0){
                openNav.play();
            }else{
                closeNav.setToX(-(navList.getWidth()));
                closeNav.play();
            }
        });
    }
}

下面是FXML：

<AnchorPane xmlns:fx="http://javafx.com/fxml/1" id="AnchorPane" prefWidth="500" prefHeight="500"    fx:controller="leftslidemenusample.FXMLDocumentController">
    <children>

        <ToolBar AnchorPane.topAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" minHeight="56.0"   >
            <Button text="menu" fx:id="menu"  /> 
        </ToolBar>
        <StackPane fx:id="mainContent"  style="-fx-background-color:rgba(0,0,0,0.30)" AnchorPane.bottomAnchor="0.0" AnchorPane.topAnchor="56.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0"    >
            <children>

            </children>
        </StackPane>
        <AnchorPane fx:id="navList" style="-fx-background-color:white" AnchorPane.topAnchor="56.0" AnchorPane.bottomAnchor="0.0" prefWidth="180.0" translateX="-180"   >
            <children>
                <Label text="left side menu"/>
            </children>
        </AnchorPane>

    </children>

</AnchorPane>