How to change the language of application in iphone

I am developing an application, in which i am giving user to select other language , by default the application will be in English , if user selects other language from the list. The application language should 开发者_运维问答be get changed to the respective language. I know the concept of Localization, but if there any way to do that, if i want to do that using localization please suggest me proper steps for that. please suggest me solution for that.

Well, usually the language of the application is set from the language of the system (in phone settings), that's how most iPhone apps operate. If you go with that route - you get 'locale switching' for free, and NSLocalizedString method takes care of picking correct strings for you.