NSLocale preferredLanguages objectAtIndex:0 always return “en”

Question

Simulator\'s language already changed to Japanese, why [[NSLocale preferredLanguages] objectAtIndex:0] always return "en"

Answer 1

My iOS simulator suddenly started reporting "en" rather than "en-US", so it seems this issue is still active.

Reproduced in:

• Xcode 8.2.1, iOS 10
• Xcode 9.4.1, iOS 11

I went into the language settings and English and United States were selected. I selected Canada and French, and got "fr-CA". I then switched it back and started getting "en-US" again. I've been unable to reproduce the "en" issue since.

So it appears we cannot pass the values of [NSLocale preferredLanguages] on assuming they will be Language-Region pairs.