Facebook and keyboard animation management

Question

Does anyone know how to implement composerBar and keyboard appearing like in Facebook messenger?

After scrolling tableView up, a keyboard appears from bottom smoothly and without any jumps . In my similar implementation it works like this: after scrolling up, when tableView bottom offset < 0, composerBar's input text field become first responder and keyboard jumps to finger. Yes, I use UIScrollViewKeyboardDismissModeInteractive.

How does Facebook implement this smooth animation?

Edit: I try to explain how it works in Facebook Messenger, step by step.

I have InputAccessoryView on my viewController (TableViewController). Then I start to scroll TV up (pic 1)

Then, if bottom inset become more then some value (for example 10) (pic 2), I set firstResponder to inputTextField (pic 3)

So, in common case, with 'UIScrollViewKeyboardDismissModeInteractive', keyboard jumps to finger position (pic 4)

BUT! In Facebook Messenger keyboard drags from bottom with distance equal to distance traveled by the finger. (pic 5)

So, facebook messenger somehow control keyboard moving. Question is: how??

Salas

check this out github.com/oseparovic/MessageComposerView – Giannini

or you can try this also github.com/jmascia/DAKeyboardControl – Giannini

@eddwinpaz I tried, as I think, all of this frameworks, but no one can recreate such functionality. – Salas

I know what you mean now.. you mean this github.com/jakubknejzlik/GNKeyboardAwareScrollView – Giannini

Thanks, but - nope. It's just scrollview insets adaptation to open/close keyboard. I also implement such feature in my messenger. To understand what i mean - just install FB messenger and try to scroll up any dialog TableView. – Salas

Did you ever figure this out? – Surtax

@simme Nope. After many attempts I just leave it :( – Salas

Did you have any solution? – Patiencepatient

Answer 1

What you are looking for is the Input Accessory View

It is a property of UITextView/UITextField that allows you to set a custom view that will be displayed above system keyboard.

Outlaw

I use it too, thanks. But main question is - how to drag keyboard from bottom corner without any corrupted animations and jumps to finger position. – Salas