notifyDataSetChanged for multiple checkboxes

Question

In attached image, SelectAll checkbox is present with in an activity, and all checkboxes within adapter. If i checked SelectAll then all checkboxes are checked in adapter and if I unchecked then all are unchecked. Its happening nicely.

But I want if I checked SelectAll and after that if i uncheked one or more checkbox in tha adapter then the SelectAll checkbox should unchecked. and if without check to SelectAll If i manually check all the checkboxes in adapter then SelectAll checkbox should checked automatically.

How can I do that.

bellow is my code., http://pastebin.com/5pUJJC42

Answer 1

I did like below and I got my required output,

http://pastebin.com/PgNeDnXq