how can i add concept of theme or skin to iPhone application ? my app will download themes from location upon purchase and then it will be applicable to apply that theme to application ..
does apple support any such thing?
For a Cocoa Touch app, there is no inherent support for visual theming. You're on your own-- a theme will be your defined collection of colors/tinting/backgrounds or whatever is relevant to your app, and you should just apply these to your UIViews, navigation bars, or whatever is relevant.