I’ve mentioned a number of custom libraries and components for enhanced tab bars, most recently JFATabBarController which provides a nicely scrolling tab bar for going through several pages of items.
Here’s an open source Swift module that allows you to add a number of very slick animations to your tab bar, and also allowing you to provide animations of your own called RAMAnimatedTabBarController from Ramotion.
With the iOS 8 SDK Apple has delivered a much simpler API for creating UIAlertView’s and UIActionSheet’s, but if you’re looking to support iOS 7 you can’t use the new clean and simple syntax of UIAlertController.
Here’s an open source project from Peter Steinberger that bring backwards compatibility to the iOS 8 UIAlertController API with PSTAlertController.
Many popular apps use card style interfaces to play data such as profiles and news, and I’ve mentioned a few libraries and components based on this pattern most recently ZLSwipeableView for handling different card wiping gestures.
Here’s a nice component realeased by Richard Kim and Jared Moskowitz allowing you to create stylish and easily customizable card views called RKCardView.
Here’s a set of Swift based open source components submitted by Le Van Nghia providing even more components, a core animation layer you can add to UI components for adding ripple effects and a color helper library based on material design called MaterialKit.
Earlier this year I mentioned a nice open source component created in Swift for creating nice simple animated pop up alerts.
Sweet Alert provides great looking alerts with nice animations based on user interactions and very easy usage.