Core Animation Pie Chart

Created by Brian Coyner (2011,2012,2013)

Requirements

• Xcode 5.0, iOS 7

This is a simple Pie Chart view built using Core Animation. The purpose of this app is to demonstrate a technique for animating arc (i.e. wedges) of a pie chart.

The pie chart contains the following features:

• add new slices (animated)
• remove selected slice (animated)
• update existing pie values (animated)
• interactive slice selection (tap and/ or move your finger)

The view uses a data source (number of slices, slice value) and delegate (selection tracking)