onKeyPress being called after dictation in iOS

[elliscwc]

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• Search for existing issues: https://github.com/facebook/react-native/issues
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Environment

React Native Environment Info:
System:
OS: macOS High Sierra 10.13.6
CPU: x64 Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
Memory: 405.82 MB / 16.00 GB
Shell: 3.2.57 - /bin/bash
Binaries:
Node: 10.12.0 - /usr/local/bin/node
Yarn: 1.10.1 - /usr/local/bin/yarn
npm: 6.4.1 - /usr/local/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
iOS SDK:
Platforms: iOS 12.0, macOS 10.14, tvOS 12.0, watchOS 5.0
IDEs:
Android Studio: 3.0 AI-171.4443003
Xcode: 10.0/10A255 - /usr/bin/xcodebuild
npmPackages:
react: 16.5.0 => 16.5.0
react-native: 0.57.4 => 0.57.4

Description

In iOS, when the text dictation ends, onKeyPress event is called for unknown reason.

• The onKeyPress event return Backspace key which interfere with our text input logic.
• The event with that key doesn't actually delete a letter.

Please consider removing it, thank you~!

Reproducible Demo

Somehow it must test on device instead of appetize for the demo to work.
https://snack.expo.io/@elliscwc/onkeypress-after-dictation

[cpojer]

You are right, this seems like this is a real issue but unfortunately it's unlikely anyone will be able to spend time on this anytime soon. I'm going to close this issue but we are more than happy to receive a pull request with a fix for this!