JavaFX:如何为窗格创建幻灯片动画效果(在透明舞台内)

Question

我想要一些关于如何在用户按下按钮时为窗格实现幻灯片转换的指南,就像Material Design为滑动菜单做的那样.

这是一个视频链接,说明了我的需求.

我尝试过ScaleTransition,TranslateTransition,但他们没有做到这一点.

我试图实现它的方式效率不高.

// 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());

---

---更新---

这是从这里下载的样本Gluon应用程序.这是一个gradle项目,我修改它以显示一个按钮而不是默认标签.

我想在用户点击按钮时缩小AnchorPane.

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 ---

我设法使用本机JavaFX API实现类似于我想要的东西,而没有外部库.

虽然,我遇到了一些问题.

1. 缩小AnchorPane不会收缩/移动任何子节点,因为它们保持在布局位置.
2. 缩小除AnchorPane之外的任何其他窗格除了ImageView节点之外,它还缩小/移动其子节点.

接下来的两张图片说明了我遇到的第一个问题.

这是一个AnchorPane(珊瑚色在其全宽;展开)在AnchorPane(灰色的根窗格)内.

当您单击"菜单"按钮缩小/隐藏它时会发生这种情况.正如您所看到的那样珊瑚色窗格缩小/隐藏,但不是它的节点(Label,ImageView)

我发布了整个代码来自己重现这个问题:

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;
    }
}

---

---更新3 ---

我根据自己的需要修改了Felipe Guizar Diaz为我提供的代码,因为我想在透明的舞台窗口上设置一个阴影效果.

当我单击菜单按钮以显示左侧窗格时,它会显示在阴影前面.即使在SceneBuilder中,我已经将StackPane放置在所有节点前面.

当我按下显示菜单并开始播放开放转换时,这是"神器"...

我该如何解决？

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:"你应该把它想象成android中的导航抽屉,JavaFX中的导航抽屉将是一个AnchorPane有2个孩子,首先是一个StackPane相当于FrameLayout我们的主要工作内容,窗格的转换取决于左侧菜单中选择的项目,最终ListView作为我们的左侧菜单,负数translateX等于Listview宽度.然后当用户按下按钮时,您必须播放一个动画,translateXto 的价值0." 你不应该使用prefWidth()在两个动画的插值方法中(折叠面板,展开窗格),因为子节点不调整大小,边距排列是唯一的约束 AnchorPane.

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();
            }
        });
    }
}

这是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>

Answer 2

最后，我完成了。

它们的主要特点是：

1. 使用自定义窗格在根窗格上设置阴影效果，该窗格在其布局边界之外绘制阴影并裁剪其内部内容，因此它具有透明内容。
2. 根窗格可以是 AnchorPane 以外的任何东西。
3. 将包含主要内容的窗格剪辑到其内部边界。

下面是控制这些效果的源代码片段：

@Override
public void initialize(URL url, ResourceBundle rb) {  
    ...

    Rectangle clip = new Rectangle(rootPaneWidth, rootPaneHeight);
    rootPane.setClip(clip);
    rootPane.getChildren().add(setupShadowPane());
}

private Pane setupShadowPane() {
    Pane shadowPane = new Pane();
    shadowPane.setStyle(
        "-fx-background-color: white;" +
        "-fx-effect: dropshadow(gaussian, black, " + shadowSize + ", 0, 0, 0);" +
        "-fx-background-insets: " + shadowSize + ";"
    );

    Rectangle innerBounds = new Rectangle();
    Rectangle outerBounds = new Rectangle();
    shadowPane.layoutBoundsProperty().addListener((observable, oldBounds, newBounds) -> {
        innerBounds.relocate(newBounds.getMinX() + shadowSize, newBounds.getMinY() + shadowSize);
        innerBounds.setWidth(newBounds.getWidth() - shadowSize * 2);
        innerBounds.setHeight(newBounds.getHeight() - shadowSize * 2);
        outerBounds.setWidth(newBounds.getWidth());
        outerBounds.setHeight(newBounds.getHeight());

        Shape clip = Shape.subtract(outerBounds, innerBounds);
        shadowPane.setClip(clip);
    });

    return shadowPane;
}

幻灯片菜单半打开

幻灯片菜单完全打开

幻灯片菜单关闭