Interface language in MFMessageComposeViewController

I'm trying to send sms from my iphone using MFMessageComposeViewController. It shows a modal dialog with filled fields. everything work, but I want to show dialog in Russian Language. I want to see all values (such as "New message", "send", etc) in Russian.

I'v checked default language:

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSArray *languages = [defaults objectForKey:@"AppleLanguages"];
NSString *currentLanguage = [languages objectAtIndex:0];

NSLog(@"Current Locale: %@", [[NSLocale currentLocale] localeIdentifier]);
NSLog(@"Current language: %@", currentLanguage);
开发者_高级运维

And it returns, that language is ru-RU.

How can I set a lang for this dialog?

You need to localize your app for Russian in order for it to show the localized controls you ask for.

All you should need to do is add a ru.lproj folder to your project (you could include here a Localizable.strings file if needed by your app) to let know Xcode that you are actively supporting that language.

For every language you add as language-code.lproj, every native control (MFMessageComposeViewController, MFMailComposeViewController) should consider using that language if set as local on the device.