title: Retrieving data from firebase takes too much time
body: <p>I think this is a crazy question but I'm new to firebase...Here is my problem...
  I want to retrieve firebase data to textview, imageview and listview! this is my example database structure..it has many other nodes like this  
   <a href="https://i.stack.imgur.com/JURr3.png" rel="nofollow noreferrer">https://i.stack.imgur.com/JURr3.png</a><br>
    So, I add username to a textview, profile photo to imageview, birthdate to a textview and there are many other nodes like messages and other usernames(in an activity).It's ok but the problem is "it takes to much time to retrieve data to each view and then it shows all the data at the same time"..I mean it don't show each data simultaneously after loading but show all requested data to all views after loading. What I want is a view after a view loading and showing...</p>
  
  <p>I don't know how to explain my problem and how to call it as I have bad Eng skill... 
   Here is UI of that activity after fetching data.(Birthdate and some data haven't added yet). <a href="https://i.stack.imgur.com/GRX0O.png" rel="nofollow noreferrer">https://i.stack.imgur.com/GRX0O.png</a> This is the photo while retrieving with default image and text. <a href="https://i.stack.imgur.com/iEhv9.png" rel="nofollow noreferrer">https://i.stack.imgur.com/iEhv9.png</a></p>