title: How to update a single item in flutter list, as a best way
body: <p>How to update a single item in flutter list?</p>
  
  <p>I need best way.</p>
  
  <p>Why I am saying best way?</p>
  
  <p>I need to update a single item and dont want when update a single item on that all items exists in the list get rendered.</p>
  
  <p>I mean when update a single item, then just that single item should be refreshed not the entire list.</p>
  
  <p>because if the entire list gets render for updating just one item, on that time our app may does not have a good performance.</p>
  
  <p>So is there a way to overcome this?</p>