title: How to update expandable list view values
body: <p>Hi I am using expandable list view in my layout which contain list of fitness activities i have done on that particular day. I can see all the list of activities when i initially open my Activity. But when i add new activities, i can not see new activities in my expandable list view. How can i see my new activities when i come back from other screens? Please suggest me some solutions.</p>
  
  <p>Thanks in advance.</p>