Unlike desktop applications and web application, mobile applications cannot utilize resource bundles. Internationalizing mobile applications follows a slightly different approach.
In such devices, internationalization is achieved using a user-defined resource class. This class holds all the strings required by the application in various languages. Depending on the locale, the required set of strings is returned to the main application, and that application in-turn displays the locale-specific content.
Generally the resource class obtains the locale of the mobile device and returns the locale-specific set of strings to the main application. However the languages supported by the mobile-device are entirely device-dependent. So there is a huge possibility that the internationalization efforts may not be completely perceptible in all the targeted mobile devices.