STKit is a collection of useful classes for iOS Developer,it can help you to simplify the approach to develop your iOS applications saving time and more efficiently.

UIKit

STNavigationController (Based on UIViewController)

STTabBarController (Based on UIViewController)

STSideBarController (A container controller)

STImagePickerController (You can select more than one picture)

STLinkLabel (Label contains hyperlink and custom link)

STImagePresent (Preview a list of images with a cool animation)

UIKit+STKit (Some useful categories on uiview)

and so on.

Foundation

STObject (convert JSON->Model)

STNetwork (a network engine based urlconnection and operation queue)

STImageDownloader (Download and cache image)

STAESCryptor (Crypto using AES)

STRSACryptor (Crypto using RSA, including some common way to exact the public key and the private key)

Foundation+STKit (Categories )

and so on

There are many other tools, you can checkout and find them.

I will always update stkit.

Some knowledge can be found in my blogs. 技术哥的博客