JavaFX: ListView Event handling

By adding change listener to ListView instance, you can track the events on ListView widget.

Ex

ListView<String> listView = new ListView<>();

listView.getSelectionModel().selectedItemProperty().addListener((ObservableValue<? extends String> ov, String old_val, String new_val) -> {

         String selectedItem = listView.getSelectionModel().getSelectedItem();

         label.setText("Item selected : " + selectedItem);

});

Find the below working application.

ListViewApp.java

package com.sample.demos;

import javafx.scene.paint.Color;
import javafx.application.Application;
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.layout.HBox;
import javafx.stage.Stage;

public class ListViewApp extends Application {

 @Override
 public void start(Stage primaryStage) {
  ListView<String> listView = new ListView<>();
  ObservableList<String> items = FXCollections.observableArrayList("Cricket", "Chess", "Kabaddy", "Badminton",
    "Football", "Golf", "CoCo", "car racing");
  listView.setItems(items);

  Label label = new Label();
  label.setTextFill(Color.RED);

  listView.getSelectionModel().selectedItemProperty().addListener((ObservableValue<? extends String> ov, String old_val, String new_val) -> {
     String selectedItem = listView.getSelectionModel().getSelectedItem();
     label.setText("Item selected : " + selectedItem);
    });

  HBox hBox = new HBox(30, listView, label);

  Scene scene = new Scene(hBox, 500, 200);

  /* Set the scene to primaryStage, and call the show method */
  primaryStage.setTitle("JavaFX ListView app Example");
  primaryStage.setScene(scene);
  primaryStage.show();
 }

}

TestFX.java

package com.sample.demos;

import javafx.application.Application;

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

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