Java – detect jsplitpane separation motion

Is there any way to detect when to move the jsplitpane separator? Is there any way to add a divider motion listener?

JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JSplitPane sp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,panel1,panel2);
// What do I put here to be notified if the divider in sp is moved?

Solution

I think you are looking for addpropertychangelistener from the container Such a thing

sp.addPropertychangelistener(JSplitPane.DIVIDER_LOCATION_PROPERTY,new Propertychangelistener() {
        @Override
        public void propertyChange(PropertyChangeEvent pce) {}
});