iOS localization is broken with the upgrade iOs 9 + Xcode 7

问题

I localized my app in Italian and English, using the Localizable.strings file and the NSLocalizedString macro. I also enabled base localization. Everything works fine in the simulator and on devices with iOS 8, but on iOS 9 the app is always in english, even on devices with the italian language selected as default in the iPhone settings. Does iOS 9 changes something with localization?

Here's a screenshot of the Xcode localization settings

1

And of the device used for testing

Thanks in advance

回答1:

Solved, the "problem" was the key "Localization native development region" in the info.plist file. It was setted to Italy, so when the app was running in a device with the Italian language as default it was showing the Base localization version of the strings (the English version). Changing the value to United States solved the issue.

回答2:

I have another solution, just remove the key 'Localizations' in info.plist. It works for my case.

回答3:

I've found a workaround. The root cause of this problem is Apple changed the "Language Identifiers" in iOS 9, please refer this.

Since NSLocalizedString() (and variants thereof) access the "AppleLanguages" key in NSUserDefaults to determine what the user's settings for preferred languages are. I forced NSLocalizedString to use a specific language with is noted as their old Language Identifiers in older iOS versions once I found their Language ID is in new format. In another word, I made a mapping of "AppleLanguages" key value.

To do this, please refer to: How to force NSLocalizedString to use a specific language

I think Apple did a very bad job in compatibility!!

来源：https://stackoverflow.com/questions/32710913/ios-localization-is-broken-with-the-upgrade-ios-9-xcode-7