when keyboard pops and everything of Screen goes up including navigation bar

[vermaanand]

when Keyboard appears, everything of Screen goes up including navigation bar.
this works fine for first time when I pushed my ChatViewController, But When I pushed Another controller on ChatViewController and come back to ChatViewController then throwing issue.

Note:-
I'm using IQKeyboardManager . if I am disabling IQKeyboardManager then throwing issue #683
Please anyone, I need help.

[JacobJT]

I had this issue and the solution was to disable IQKeyboardManager when going to the chat screen, and re-enabling it when it was popped.

That leaves you with the other issue, but IQKeyboardManager does not play nice with third party frameworks that handle text input. I recommend you figure out how to resolve the other issue - especially because the maintainers of this repo aren't going to figure out how to build around a third party, and the third party won't help you figure out how to get it to play nice here.