How to check all checkboxes at some specific event in android?

I 开发者_如何学运维am making an app which required my checkboxes to be checked at once when i check the main checkbox. I am using one normal checkbox widget which i am hoping will work as my main checkbox and i am also using LIST of multiple choice(simple_list_item_multiple_choice). Now i want to check all these listview's checkbox when i check my main checkbox.

I am stuck at this part :( please help!!!!

Thanks, Varundroid.

following link is useful to you

Correct way to check all checkboxes in ListView?