Le Tutoriel de JavaFX ListView

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Tutoriels de JavaFX

ListView
Exemple de ListView
ListView & ChangeListener

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1- ListView

JavaFX ListView affiche ses éléments (Items) verticalement ou horizontalement.

Voici une ListView vertical qui comprend 3 éléments (item).

ListView horizontal.


// Default ListView is vertical.
// Set ListView with horizontal direction.

listView.setOrientation(Orientation.HORIZONTAL);

2- Exemple de ListView

ListViewDemo.java


package org.o7planning.javafx.listview;

import org.o7planning.javafx.model.Book;

import javafx.application.Application;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.ListView;
import javafx.scene.control.SelectionMode;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class ListViewDemo extends Application {

  @Override
  public void start(Stage stage) {

      Book book1 = new Book(1L, "J01", "Java IO Tutorial");
      Book book2 = new Book(2L, "J02", "Java Enums Tutorial");
      Book book3 = new Book(2L, "C01", "C# Tutorial for Beginners");

      // To Creating a Observable List
      ObservableList<Book> books = FXCollections.observableArrayList(book1, book2, book3);

      // Create a ListView
      ListView<Book> listView = new ListView<Book>(books);

      // To set multiple selection model
      listView.getSelectionModel().setSelectionMode(SelectionMode.MULTIPLE);

      // Select item at index = 1,2
      listView.getSelectionModel().selectIndices(1, 2);

      // Focus
      listView.getFocusModel().focus(1);

      StackPane root = new StackPane();
      root.getChildren().add(listView);

      stage.setTitle("ListView (o7planning.org)");

      Scene scene = new Scene(root, 350, 200);
      stage.setScene(scene);
      stage.show();
  }

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

Book.java


package org.o7planning.javafx.model;

public class Book {

    private Long id;
    private String code;
    private String name;

    public Book(Long id, String code, String name) {
        this.id = id;
        this.code = code;
        this.name = name;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    @Override
    public String toString() {
        return this.name;
    }
    
}

Exécutez l'exemple :

3- ListView & ChangeListener

ListViewChangeListenerExample.java


package org.o7planning.javafx.listview;

import org.o7planning.javafx.model.Book;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.SelectionMode;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class ListViewChangeListenerExample extends Application {

    @Override
    public void start(Stage stage) {

        Book book1 = new Book(1L, "J01", "Java IO Tutorial");
        Book book2 = new Book(2L, "J02", "Java Enums Tutorial");
        Book book3 = new Book(2L, "C01", "C# Tutorial for Beginners");

        Label label = new Label();

        // To Creating a Observable List
        ObservableList<Book> books = FXCollections.observableArrayList(book1, book2, book3);

        // Create a ListView
        ListView<Book> listView = new ListView<Book>(books);

        // Only allowed to select single row in the ListView.
        listView.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);

      
        listView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Book>() {

            @Override
            public void changed(ObservableValue<? extends Book> observable, Book oldValue, Book newValue) {
                label.setText("OLD: " + oldValue + ",  NEW: " + newValue);
            }
        });

        VBox root = new VBox();
        root.getChildren().addAll(listView, label);

        stage.setTitle("ListView & ChangeListener (o7planning.org)");

        Scene scene = new Scene(root, 450, 200);
        stage.setScene(scene);
        stage.show();
    }

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

L'événement base sur Index :

ListViewChangeListenerExample2.java


package org.o7planning.javafx.listview;

import org.o7planning.javafx.model.Book;

import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.control.ListView;
import javafx.scene.control.SelectionMode;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class ListViewChangeListenerExample2 extends Application {

    @Override
    public void start(Stage stage) {

        Book book1 = new Book(1L, "J01", "Java IO Tutorial");
        Book book2 = new Book(2L, "J02", "Java Enums Tutorial");
        Book book3 = new Book(2L, "C01", "C# Tutorial for Beginners");

        Label label = new Label();

        // To Creating a Observable List
        ObservableList<Book> books = FXCollections.observableArrayList(book1, book2, book3);

        // Create a ListView
        ListView<Book> listView = new ListView<Book>(books);

        // Only allowed to select single row in the ListView.
        listView.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);

      
        listView.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {

            @Override
            public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
                label.setText("OLD Index: " + oldValue + ",  NEW Index: " + newValue);
            }

            
        });

        VBox root = new VBox();
        root.getChildren().addAll(listView, label);

        stage.setTitle("ListView & ChangeListener (o7planning.org)");

        Scene scene = new Scene(root, 450, 200);
        stage.setScene(scene);
        stage.show();
    }

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

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Tutoriels de JavaFX