linhtran1788/canvaskit

A high performance tile view engine for iOS. Used in Alien Blue's Canvas feature.

CanvasKit

This is the underlying tiling engine that powers Alien Blue and Alien Blue HD's canvas image tiles. Although it is very much a work in progress, the CanvasKit gives you a high performance way to present unlimited collections.

Flexibility

At it's core, the CanvasKit is just a fast way to render tiles, but can be extended for deep user interaction. For example, Alien Blue uses this engine to show an interactive gallery of images:

Usage

Your view controller should subclass CanvasViewController. You can then subclass CanvasView and CanvasTileView and overwrite drawRect() to render your own content.

The canvasViewDidScrollNext, canvasViewDidScrollPrevious and canvasViewDidScrollLastPage behaviours can be used to trigger events like loading more images.

Caveats

The CanvasKit was tightly coupled with Alien Blue, so I'm still working on cleaning up the delegate/datasource patterns.

License

The CanvasKit is BSD licensed, so you can freely use it in commercial applications.