Loading the contacts after the view has shown this way not waiting 3 seconds :) when pressing the "Show contacts" UI in the calling app.
Cancel button on the left to avoid 2 cancel buttons on top of each other + only showing the SearchBar cancel button when searching + Hiding Keyboard (and hiding cancel button) when pressing searchBar cancel button.
Better integration of the searchBar (in the TableViewHeader instead of Section Header) also allowing an easier code for showing/hiding keyboard and Cancel button.