How to Apply Style to Iphone application

I like to have uniformity in my application style for my mobile.How to apply the st开发者_JAVA技巧yles to my control in the Iphone app ..Something similar to android resource files.. Even i hope thats one of the good pattern to follow in the application develovpment

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1. Buttons can be styled by using creating a custom button.
2. Custom views can be created using Interface builder or via code inheriting the UIview. A sample tutorial can be found here
3. You can create custom uitableview and uitableview cells too.

Resource files in android application is what Interface builder provides you in Xcode to create xib (nibs) for your ui layout.