[iOS] Keyboard can not dismiss after use Alert

[andres-torres-marroquin]

🐛 Bug Report

If a TextInput has blurOnSubmit={false}, and an Alert gets opened when the TextInput is focused, after dismissing the Alert the keyboard reopens by itself, and you won't be able to dismiss the keyboard anymore. The Snack example is pretty clear to understand.
Relates to #17356 and #9902

To Reproduce

Create a TextInput with blurOnSubmit={false} and being focused, open an Alert.

Expected Behavior

The keyboard should dismiss after opening an Alert.

Code Example

https://snack.expo.io/B1ZX4bVDE

Environment

React Native Environment Info:
System:
OS: macOS High Sierra 10.13.6
CPU: x64 Intel(R) Core(TM) i7-7700K CPU @ 4.20GHz
Memory: 45.73 MB / 32.00 GB
Shell: 5.3 - /bin/zsh
Binaries:
Node: 10.13.0 - ~/.nvm/versions/node/v10.13.0/bin/node
Yarn: 1.10.1 - /usr/local/bin/yarn
npm: 6.4.1 - ~/.nvm/versions/node/v10.13.0/bin/npm
Watchman: 4.9.0 - /usr/local/bin/watchman
SDKs:
iOS SDK:
Platforms: iOS 12.1, macOS 10.14, tvOS 12.1, watchOS 5.1
Android SDK:
Build Tools: 23.0.1, 25.0.3, 26.0.2, 27.0.1, 27.0.2, 27.0.3, 28.0.0, 28.0.2, 28.0.3
API Levels: 17, 21, 22, 23, 25, 26, 27, 28
IDEs:
Android Studio: 3.3 AI-182.5107.16.33.5314842
Xcode: 10.1/10B61 - /usr/bin/xcodebuild
npmPackages:
react: 16.8.4 => 16.8.4
react-native: 0.59.1 => 0.59.1

[react-native-bot]

It looks like you are using an older version of React Native. Please update to the latest release, v0.59 and verify if the issue still exists.

The "Resolution: Old Version" label will be removed automatically once you edit your original post with the results of running react-native info on a project using the latest release.

[gwdp]

+1 Same issue here

[zhongwuzw]

@andres-torres-marroquin Hi, can you try the latest master branch to check wether it fixed?

[zhongwuzw]

I think this has been fixed in #23240. cc @kelset @cpojer .