which column is checked or unchecked in columnToggler?

In columnToggler in primefaces how to check which column is checked and unchecked with any listener. How can this is possible because when I am using state full column toggler i am refreshing my page here is all unchecked columns are rechecked by default but I want to remain this columns as i selected (checked/unchecked). Any Solution? to check it. I am using primeFaces 5.0 in JSF 2.0.