Another role of Cell Factory is creating custom cells for your list with any content, instead of text.
In the following setCellFactory method, we will add a color rectangle corresponding to the list-item name:
ObservableList<String> items = FXCollections.observableArrayList( "Red", "Blue", "Yellow", "Green");ListView<String> list = new ListView<>(items);list.setCellFactory((ListView<String> param) -> { return new ListCell<>() { @Override public void updateItem(String item, boolean empty) { super.updateItem(item, empty); if (! (empty || item == null)) { // adding new item setGraphic(new Rectangle(30, 30, Color.web(item))); setText(item); } else { setText(null); setGraphic(null); } } };});
There are quite a few plumbing ...
