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Got following error: 

 no visible @interface for 'NSString' declares the selector 'primaryLanguage'

at following code: 

 NSString *lang = [[[UITextInputMode activeInputModes] firstObject] primaryLanguage];
                          ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^~~~~~~~~~~~~~~
```NSString *lang = [[[UITextInputMode activeInputModes] firstObject] primaryLanguage];```

image

WannaBeGeek
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Zander Zhang
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    Yup your not allowed use it. You should use NSString * language = [[[NSBundle mainBundle] preferredLocalizations] objectAtIndex:0]; to get the users primary language for your app. see more at: http://stackoverflow.com/questions/3910244/getting-current-device-language-in-ios – BooRanger Sep 17 '15 at 10:22
  • thanks for your help! – Zander Zhang Sep 17 '15 at 10:57

1 Answers1

1

UIKeyboardInputMode is a private class.

Therefore, you are not allowed to call this method/property. You would have to add the private header, which makes it impossible to publish the code in the AppStore.

Michael Dorner
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