internationalization in iphone application - iphone

Question

my application run vary well but now when UISwitch button is on at that time i have to convet whole application in spanish when off then convert in to english how it possible plz give any replay for that.

Answer 1

i18n
Create the following structure:
resources/i18n/en.lproj/Localizable.strings
resources/i18n/es.lproj/Localizable.strings
Create an additional directory with the corresponding two letter code for each additional language supported.
It's recommended to encode Localized.strings in UTF-16. You can convert between encodings in the inspector pane of XCode.
If the files are recognized as i18n resources, they will be presented like this:
A sample file has the following content:
"hello"="hola";
Then use the following in your program:
NSString *string = NSLocalizedString(#"hello", nil);
Choose language dynamically
To change the language for your application dynamically use this code:
#implementation Language
static NSBundle *bundle = nil;
+(void)initialize {
NSUserDefaults* defs = [NSUserDefaults standardUserDefaults];
NSArray* languages = [defs objectForKey:#"AppleLanguages"];
NSString *current = [[languages objectAtIndex:0] retain];
[self setLanguage:current];
}
/*
example calls:
[Language setLanguage:#"es"];
[Language setLanguage:#"en"];
*/
+(void)setLanguage:(NSString *)code {
NSLog(#"preferredLang: %#", code);
NSString *path = [[ NSBundle mainBundle ] pathForResource:code ofType:#"lproj" ];
// Use bundle = [NSBundle mainBundle] if you
// dont have all localization files in your project.
bundle = [[NSBundle bundleWithPath:path] retain];
}
+(NSString *)get:(NSString *)key alter:(NSString *)alternate {
return [bundle localizedStringForKey:key value:alternate table:nil];
}
#end
Then translate your strings like this:
NSString *hello [Language get:#"hello", nil, nil];
The code above was originally posted by Mauro Delrio as an answer to How to force NSLocalizedString to use a specific language.