JavaFX使用MenuBar、Meun、MenuItem实现简单菜单窗口

一、环境

jdk8

二、模拟

三、代码

package xyz.hashdog.class26;

import javafx.animation.FadeTransition;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.*;
import javafx.scene.image.ImageView;
import javafx.scene.input.KeyCombination;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.GridPane;
import javafx.stage.Stage;
import javafx.util.Duration;


/**
 * @author th
 * @description: TODO
 * @projectName hashdog
 * @date 2020/2/1620:48
 */
public class Launch extends Application {

    public static void main(String[] args) {
        Application.launch(Launch.class,args);
    }

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


        AnchorPane an = new AnchorPane();
        //创建menubar
        MenuBar menuBar = new MenuBar();
        Menu menu1 = new Menu("menu1");
        Menu menu2 = new Menu("menu2");
        Menu menu3 = new Menu("menu3");
        Menu menu4 = new Menu("menu4");
        //绑定menu
        menuBar.getMenus().addAll(menu1,menu2,menu3,menu4);
        //绑定一个图标
        ImageView imageView = new ImageView("https://img-blog.csdnimg.cn/20200218180346114.png");
        imageView.setFitWidth(16);
        imageView.setFitHeight(16);

        MenuItem item1 = new MenuItem("item1",imageView);
        //设置item1的快捷键
        item1.setAccelerator(KeyCombination.valueOf("ctrl+m"));
        //item1的点击事件
        item1.setOnAction(e->{
            System.out.println("item1的点击事件");
        });
        MenuItem item2 = new MenuItem("item2");
        MenuItem item3 = new MenuItem("item3");
        MenuItem item4 = new MenuItem("item4");
        MenuItem item5 = new MenuItem("item5");

        //将menuitem放到menu
        menu1.getItems().addAll(item1,item2,item3);
        menu2.getItems().addAll(item4,item5);

        an.getChildren().add(menuBar);
        an.setStyle("-fx-background-color: deepskyblue");
        Scene s= new Scene(an);
        primaryStage.setScene(s);
        primaryStage.setTitle("hashdog");
        primaryStage.setWidth(500);
        primaryStage.setHeight(300);
        //设置窗口不可拉伸
        primaryStage.setResizable(false);
        primaryStage.show();
        menuBar.setPrefWidth(primaryStage.getWidth());






    }

}