title: Listview animation (slide row up)
body: <p>I am writing a chat app that has an activity that draws chat transcript(ListView stacked from bottom) along with a Text input area below the list view. User can type their chat message in the Text input area and then this message is appended to the  listview.</p>
  
  <p>To "reflect" this addition, I am adding the user entered string in my ListAdapter and then calling notifyDatasetChanged() method. Although this method does the job, there are no animations which makes the entire thing look less "natural".</p>
  
  <p>I wish to slide the list up gradually as the row is being added and want to know how this can be achieved.</p>