ChoiceBox Listener

Question

I'm having some trouble using the ChoiceBox. What type of listener do you have to setup to be able to tell which item in the list the user selected? I figured there would be something in the API like onAction() or something similar but I don't see anything like that. Any help is appreciated. Thanks.

Answer 1

In JavaFX look for the Observable properties and Lists. A little odd at first cause its different, but you get used to it and then it's quite nice. I had to write some Swing code yesterday and had almost forgotten how :)
ChoiceBox<String> choiceBox = new ChoiceBox<String>();
choiceBox.getItems().addAll("One", "Two", "Three");
choiceBox.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<String>()
    public void changed(ObservableValue<? extends String> source, String oldValue, String newValue)
        System.out.println(String.format("Choice changed from '%s' to '%s'", oldValue, newValue));
});