TextInput select and edit menu labels don't follow system locale on iOS

Description:

TextInput edit menu labels remain in English ignoring system locale on iOS. The issue has been reproduced on iOS 12.4 and 13.3.

React Native version:

System: OS: Linux 5.3 Manjaro Linux undefined CPU: (8) x64 Intel® Core™ i7-8809G CPU @ 3.10GHz Memory: 2.01 GB / 31.29 GB Shell: 5.7.1 - /bin/zsh Binaries: Node: 13.5.0 - /usr/bin/node Yarn: 1.21.1 - ~/.node_modules/bin/yarn npm: 6.13.4 - /usr/bin/npm IDEs: Android Studio: 3.5 AI-191.8026.42.35.5900203 npmPackages: react: 16.9.0 => 16.9.0 react-native: 0.61.5 => 0.61.5

Steps To Reproduce

Prerequisite: set the system locale to a different locale from English.

1. In a TextInput component, type some text.
2. Select text that was previously typed.
3. An select menu appears with labels in English.
4. Press “Select All”
5. An edit menu appears

Expected Results

The select and edit menus labels should be translated to system locale language.

Snack, code example, screenshot, or link to a repository:

https://github.com/jsamr/react-native-ios-textinput-locale-bug

[blavalla]

@jsamr, I think the issue here is actually at your XCode project level, and not specific to React Native.

In the example project you linked the only languages set in the project file are english.

Here’s a screenshot showing the view where you add languages to support in your app.

[amarlette]

Thank you for bringing this to my attention! Let me ask some folks who know a bit more about iOS behaviors.