I have localized LaunchScreen.xib, through which the LaunchScreen is divided in two parts.
i.e. LaunchScreen.xib(English) and
The answer is: you cannot localize launch screen
In the Human Interface Guideline, they pointed out:
Avoid including text on your launch screen. Because launch screens are static, any displayed text won’t be localized.
Text cannot be localized.
What about images?
I have tried localising, and as of April 2017, I concluded that localization doesn't work. The localized storyboard will be ignored.