Adding a UIPopover to UISlider

slider_cupcakesIf you have an iPad you have probably used iBooks, Apple’s eBook application that gives users access to the iBooks store. In this application you can navigate through books in a number of ways. Today we are going to focus on the scroll bar at the bottom of a book that a user can utilize to skip to any given page within the book. This control involves a customized UISlider and a UIPopoverView that drags along with the slider as the value changes. Today we will be making a UISlider subclass that will duplicate this functionality.

Working with UIGestureRecognizers

apple-multi-touch-gesture-languageHey iCoders! Today we are going to make a fun project that takes advantage of UIGestureRecognizers which were introduced in iOS 3.0, way back when it was called iPhone OS. UIGestureRecognizer is an abstract class that several concrete classes extend Eg. UITapGestureRecognizer, UIPinchGestureRecognizer. Today we are going to be building a simple photo board application. You will be able to add photos from your board, move, rotate and zoom them in and out around the board. We will also build in some simple physics to give a sense of the photos being thrown around the board. Here is a short video of what our final product will look like.