JavaFx - 自定义标题栏（附：窗口移动、关闭）

app.css

#pane {
    -fx-background-color: #3c3c3c;
}

.button {
    -fx-border-color: #c8c8c8;
    -fx-border-radius: 4px;
    -fx-font-weight: bold;
    -fx-font-size: 18px;
    -fx-alignment: center;
}

.widthButton {
    -fx-font-size: 12px;
}

touch.fxml

<?xml version="1.0" encoding="UTF-8"?>

<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>

<BorderPane fx:id="pane" prefHeight="117.0" prefWidth="720.0" xmlns="http://javafx.com/javafx/11.0.2" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.luxsun.touch.Controller">
    <center>
        <AnchorPane prefHeight="117.0" prefWidth="720.0" BorderPane.alignment="CENTER">
           <children>
              <Button layoutX="14.0" layoutY="19.0" mnemonicParsing="false" onAction="#cmdCtrl" prefHeight="80.0" prefWidth="80.0" text="Alt1" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="103.0" layoutY="19.0" mnemonicParsing="false" onMouseClicked="#cmdAlt" prefHeight="80.0" prefWidth="80.0" text="Alt2" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="190.0" layoutY="19.0" mnemonicParsing="false" onTouchPressed="#cmdShift" prefHeight="80.0" prefWidth="80.0" text="Shift" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="288.0" layoutY="19.0" mnemonicParsing="false" onTouchPressed="#cmdCtrlBlank" prefHeight="80.0" prefWidth="80.0" styleClass="widthButton" text="Ctrl & Space" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="389.0" layoutY="19.0" mnemonicParsing="false" onTouchPressed="#cmdCtrlShift" prefHeight="80.0" prefWidth="80.0" styleClass="widthButton" text="Ctrl & Shift" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="492.0" layoutY="19.0" mnemonicParsing="false" onTouchPressed="#cmdTouchA" prefHeight="80.0" prefWidth="80.0" text="Touch A" textAlignment="CENTER" textFill="#c8c8c8" />
              <Button layoutX="597.0" layoutY="19.0" mnemonicParsing="false" onMouseClicked="#cmdClickA" prefHeight="80.0" prefWidth="80.0" text="Click A" textAlignment="CENTER" textFill="#c8c8c8" />
           </children>
        </AnchorPane>
    </center>
</BorderPane>

窗口移动 

package com.luxsun.touch;

import javafx.event.EventHandler;
import javafx.scene.input.MouseEvent;
import javafx.stage.Stage;

public class DragWindowHandler implements EventHandler<MouseEvent> {

    private Stage primaryStage; // primaryStage为start方法头中的Stage
    private double oldStageX;
    private double oldStageY;
    private double oldScreenX;
    private double oldScreenY;

    public DragWindowHandler(Stage primaryStage) { //构造器
        this.primaryStage = primaryStage;
    }

    @Override
    public void handle(MouseEvent e) {
        if (e.getEventType() == MouseEvent.MOUSE_PRESSED) { // 鼠标按下的事件
            this.oldStageX = this.primaryStage.getX();
            this.oldStageY = this.primaryStage.getY();
            this.oldScreenX = e.getScreenX();
            this.oldScreenY = e.getScreenY();

        } else if (e.getEventType() == MouseEvent.MOUSE_DRAGGED) { // 鼠标拖动的事件
            this.primaryStage.setX(e.getScreenX() - this.oldScreenX + this.oldStageX);
            this.primaryStage.setY(e.getScreenY() - this.oldScreenY + this.oldStageY);
        }
    }
}

主程序（关闭按钮）

package com.luxsun.touch;

import javafx.application.Application;
import javafx.application.Platform;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Control;
import javafx.scene.control.ToolBar;
import javafx.scene.layout.*;
import javafx.stage.Stage;
import javafx.stage.StageStyle;

import java.awt.*;
import java.awt.event.KeyEvent;

public class Main extends Application {

    @Override
    public void start(Stage primaryStage) throws Exception{

        Application.setUserAgentStylesheet(getClass().getResource("/app.css").toExternalForm());
        Parent root = FXMLLoader.load(getClass().getResource("/touch.fxml"));
        BorderPane borderPane = (BorderPane)root;

        ToolBar toolBar = new ToolBar();
        int height = 25;
        toolBar.setPrefHeight(height);
        toolBar.setMinHeight(height);
        toolBar.setMaxHeight(height);
        toolBar.getItems().add(new WindowButtons());
        toolBar.setStyle("-fx-background-color: #3c3c3c;");

        DragWindowHandler handler = new DragWindowHandler(primaryStage);
        toolBar.setOnMousePressed(handler);/* 鼠标按下 */
        toolBar.setOnMouseDragged(handler);/* 鼠标拖动 */

        borderPane.setTop(toolBar);

        primaryStage.initStyle(StageStyle.UNDECORATED);
        primaryStage.setOpacity(0.95D);
        primaryStage.setTitle("Touch Panel");
        Scene scene = new Scene(borderPane, 720, 117 + 25);
        primaryStage.setScene(scene);
        primaryStage.setAlwaysOnTop(true);
        primaryStage.show();
    }

    // 关闭按钮
    class WindowButtons extends HBox {

        public WindowButtons() {
            Button closeBtn = new Button("X");

            closeBtn.setOnAction(new EventHandler<ActionEvent>() {

                @Override
                public void handle(ActionEvent actionEvent) {
                    Platform.exit();
                }
            });

            this.getChildren().add(closeBtn);
        }
    }

    public static void main(String[] args) {
        launch(args);
    }
}