JavaFX: ChoiceDialog

'ChoiceDialog' shows a list of choices to the user, from which they can pick one item at most.

 

'ChoiceDialog' class provides following constructors to define ChoiceDialog instance.

 

public ChoiceDialog()

public ChoiceDialog(T defaultChoice,  @SuppressWarnings("unchecked") T... choices)

public ChoiceDialog(T defaultChoice, Collection<T> choices)

 

Example

List<String> choices = Arrays.asList("Cricket", "Football", "Singing", "Trekking");

ChoiceDialog<String> dialog = new ChoiceDialog<>("Cricket", choices);

 

Find the below working application.

 

ChoiceDialogDemo.java

package com.sample.app.diaogs;

import java.util.Arrays;
import java.util.List;
import java.util.Optional;

import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ChoiceDialog;
import javafx.scene.effect.DropShadow;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.text.Font;
import javafx.scene.text.FontPosture;
import javafx.stage.Stage;

public class ChoiceDialogDemo extends Application {

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

	}

	Button getInformationButton() {
		Button informationButton = new Button("ClickMe");
		informationButton.setAlignment(Pos.CENTER);
		informationButton.setFont(Font.font("Verdana", FontPosture.REGULAR, 30));
		informationButton.setPadding(new Insets(10));
		informationButton.setStyle("-fx-background-color:salmon");

		informationButton.setOnAction(event -> {
			List<String> choices = Arrays.asList("Cricket", "Football", "Singing", "Trekking");
			ChoiceDialog<String> dialog = new ChoiceDialog<>("Cricket", choices);
			dialog.setTitle("Hobbies");
			dialog.setHeaderText("User Hobby Selection");
			dialog.setContentText("Please choose your Hobby");

			Optional<String> result = dialog.showAndWait();
			result.ifPresent(letter -> System.out.println("Your hobby: " + letter));

		});

		return informationButton;
	}

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

		DropShadow dropShadow = new DropShadow();
		dropShadow.setOffsetX(5);
		dropShadow.setOffsetY(10);
		dropShadow.setColor(Color.GRAY);

		HBox hBox1 = new HBox();

		Button informationButton = this.getInformationButton();
		informationButton.setEffect(dropShadow);

		hBox1.getChildren().addAll(informationButton);
		hBox1.setPadding(new Insets(20));
		hBox1.setAlignment(Pos.CENTER);
		hBox1.setStyle("-fx-background-color:azure");

		Scene scene = new Scene(hBox1, 300, 200, Color.AZURE);

		primaryStage.setTitle("ChoiceDialog Demo");
		primaryStage.setScene(scene);
		primaryStage.show();
	}
}

 

Output

 

Click on the button ‘ClickMe’ you will see a choice box.

  

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