Question

The default styling highlights the row the mouse is over. I need to find out which row index that is in an onMouseMove handler.

Answer 1

One of the way is to use cell factories. For example consider the sample code in oracle’s tutorial here Example 12-4 Creating a Cell Factory. To add the functionality you want replace the cell factory setting code as follows:

list.setCellFactory(new Callback<ListView<String>, ListCell<String>>() {
    @Override
    public ListCell<String> call(ListView<String> list) {
        final ListCell cell = new ColorRectCell();
        cell.setOnMouseEntered(new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent event) {
                System.out.println("index: " + cell.getIndex());
            }
        });
        return cell;
    }
});