ity user interfaces with XML files. Using application resources makes it easy to update various characteristics of your application without modifying code and—by providing sets of alternative Рresources—enables you to optimize your application for a variety of device configura- tions (such as different languages and screen sizes).Р?For every resource that you include in your Android project, the SDK build tools define a unique integer ID, which you can use to reference the resource from your application code or from other resources defined in XML. For example, if your application contains an image file named logo.png (saved in res/drawable/ directory), the SDK tools generate a resource ID named R.drawable.logo, which you can use to Рreference the image and insert it in your user interface.
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