Unity Plugin for iOS with UIViews like UICollectionView

I am building a unity iOS plugin that other developers can integrate in their unity projects. Is it possible to build a unity plugin that loads a UIViewController which can contain UIViews like UICollectionView that show data from web service. Also can that UIViewController come from a xib file? How about handling of iOS auto layouts, will those work from within a unity iOS plugin?

I am new to Unity and it seems to me it only supports .h and .m files indicating that I’ll have to programmatically create all uiviews?

Have not received any reply, Does my question need more clarification?