Summary:
I'm using RNN, which embeds RN view inside native view controllers.
On iOS 13, a modal view controller is "floating" and is offset from the top of the screen.
This causes the calculation of inset in `KeyboardAvoidingView` incorrect as it mixes local view controller coordinate space, with keyboard's screen coordinate space.
## Changelog
[iOS] [Fixed] - Fixed `KeyboardAvoidingView` inset in embedded views (i.e modal view controllers on iOS 13)
Pull Request resolved: https://github.com/facebook/react-native/pull/27607
Test Plan:
1. Tested before and after in a simple view controller (should stay the same)
2. Tested before and after in a modal view controller (should be offset before, and fixed after)
3. Repeated no. 2 with each device rotation (upsideDown, landscapeLeft, landscapeRight)
Reviewed By: cpojer
Differential Revision: D20812231
Pulled By: TheSavior
fbshipit-source-id: fbd72739fb7152655028730e284ad26ff4a5da73
Daniel Cohen GindiandFacebook GitHub Bot
fb2900e185