JavaFX: ContextMenu

ContextMenu is helpful, when you right click on the content area and you would like to see a pop up menu.

 

Example

ContextMenu contextMenu = new ContextMenu();

 

How to add MenuItems to ContextMenu?

Use getItems() method.

 

MenuItem red = new MenuItem("Red");

MenuItem green = new MenuItem("Green");

contextMenu.getItems().addAll(green, red);

 

How to display context menu?

Use ‘setOnContextMenuRequested’ method on any node to display context menu on mouse right click.

 

circle.setOnContextMenuRequested(event -> {

         contextMenu.show(circle, event.getScreenX(), event.getScreenY());

});

 

Find the below working application.

 

ContextMenuDemo.java

package com.sample.app.widgets;

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.ContextMenu;
import javafx.scene.control.MenuItem;
import javafx.scene.effect.DropShadow;
import javafx.scene.layout.VBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;

public class ContextMenuDemo extends Application {

	@Override
	public void start(Stage stage) {
		ContextMenu contextMenu = new ContextMenu();

		DropShadow dropShadow = new DropShadow();
		dropShadow.setOffsetX(5);
		dropShadow.setOffsetY(5);
		dropShadow.setColor(Color.GRAY);

		Circle circle = new Circle();
		circle.setRadius(120);
		circle.setFill(Color.AQUA);

		circle.setEffect(dropShadow);

		circle.setOnContextMenuRequested(event -> {
			contextMenu.show(circle, event.getScreenX(), event.getScreenY());
		});

		VBox vBox = new VBox();
		vBox.setPadding(new Insets(80, 0, 0, 140));
		vBox.setSpacing(5);
		vBox.setStyle("-fx-background-color:white");

		vBox.getChildren().addAll(circle);

		MenuItem red = new MenuItem("Red");
		red.setOnAction(event -> {
			circle.setFill(Color.RED);

		});
		MenuItem green = new MenuItem("Green");
		green.setOnAction(event -> {
			circle.setFill(Color.GREEN);
		});

		contextMenu.getItems().addAll(green, red);

		Scene scene = new Scene(vBox, 600, 400);

		stage.setTitle("ContextMenu Demo");
		stage.setScene(scene);
		stage.show();
	}

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

 

Output

 

Right click on circle, you will see a context menu.

 

Click on color of your choice, you will observe that the same color is filled by circle. For example, I selected menu item ‘Red’ circle is filled with red color.

  

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