title: iOS : BackbarButton
body: <p>Hi I saw too many tutorial from stack overflow for how to change backBarButton I change it but when I check I see my image(custom arrow) beside (default arrow blue one ) I see both beside of each other
  I mean the back text changed but the arrow doesn't I see my custom arrow beside default iOS arrow I don't know how should I change it to see my custom arrow only ???
  for more detail please check this picture to see this problem
  <a href="https://i.stack.imgur.com/NkXfl.jpg" rel="nofollow noreferrer">HERE</a></p>