Yari D'areglia Senior iOS developer @ Neato Robotics by day, game developer and wannabe artist @ Black Robot Games by night. Follow @bitwaker In this tutorial I’m going to implement the “Pull To Refresh” control created for the iPhone app Periscope. It’s something new that caught my attention, so I thought I’d “disassemble” their layout trying to create something similar. Even if I’m not sure if t