Crashes on iOS 15

[OmgDef]

The app crashes right before keyboard is shown on iOS 15. On iOS 16 it works just fine.
Swift runtime failure: Unexpectedly found nil while unwrapping an Optional value

Smartphone (please complete the following information):

• Desktop OS: MacOS 12.6.1
• Device: iOS Simulator
• OS: iOS 15.0
• RN version: 0.70.4
• RN architecture: old
• JS engine: Hermes
• Library version: 1.4.0

[kirillzyusko]

@OmgDef it happens exactly on iOS 15.0? Nor 15.6 - exactly 15.0?

I'm asking because i've tested app on iOS 15.6 and everything worked correctly 🤷‍♂️

[OmgDef]

@kirillzyusko I could not repeat the issue on a fresh project. It seems there is a conflict with one of my dependencies.

[kirillzyusko]

@OmgDef okay, let me know if you find a conflict and don't hesitate to re-open this issue or create a new one 🙂

[bcgilliom]

We had one user hit this on an iphone 15 Max, iOS 17.2.1. We are using version 1.10.3 of RNKC:

Thread 0 - (TH_STATE_WAITING)
0  Trusted +0x5746c0        Swift runtime failure: Unexpectedly found nil while unwrapping an Optional value (KeyboardMovementObserver.swift:109:65)
1  Trusted +0x5705cc        KeyboardMovementObserver.observeValue(forKeyPath:of:change:context:) (<compiler-generated>)
2  Foundation +0x99e54      _NSKeyValueNotifyObserver
3  Foundation +0x99cf0      _NSKeyValueDidChange
4  Foundation +0x99b20      -[NSObject(NSKeyValueObservingPrivate) _changeValueForKeys:count:maybeOldValuesDict:maybeNewValuesDict:usingBlock:]
5  Foundation +0x99850      -[NSObject(NSKeyValueObservingPrivate) _changeValueForKey:key:key:usingBlock:]
6  Foundation +0x12cb94     __NSSetPointValueAndNotify
7  UIKitCore +0x615f4       -[UIView(Geometry) _applyISEngineLayoutValuesToBoundsOnly:]
8  UIKitCore +0x60e44       -[UIView(Geometry) _resizeWithOldSuperviewSize:]
9  CoreFoundation +0x353f0  ___NSARRAY_IS_CALLING_OUT_TO_A_BLOCK__

[kirillzyusko]

@bcgilliom can you check if #359 fixes the problem?