The Jungle, Part 7: Quartz Demos (Section 1 of 3)

It's been a while since we last plunged into the jungle. Previously, I've written about Quartz, which is the 2D graphics engine that powers the graphics in iOS. In this post, we'll take a look at various examples of Quartz at work. I'll explain everything as we go along. Open up the demo app from last time, and let's get started! Adding Frameworks First, we have to add the CoreGraphics and QuartzCore frameworks to our project. These frameworks will support the Quartz code we'll be writing. Custom Views In iOS, you draw to a view, not a view controller. This means that if you want a view with custom drawing, you'll have to create a subclass of UIView (or a subclass of one of UIKit's views, such as UITableViewCell), and if you have a view controller managing that view, then you may have to do the necessary configuration in code or Interface Builder as well. In our demo app, we see that we have a view controller called CustomDrawingViewController. Right now, it's just managing a stock UIView.

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Design Patterns,Languages,Series,Graphics,iOS,Objective-C,Quartz