by Jesse Collis
- Visit JCMultimedia.com.au
- Follow @sirjec on Twitter
- Checkout the presentation I did on CATiledLayer Here
JCTiledScrollView is a set of classes that wrap UIScrollView and CATiledLayer. The project to simplify displaying large images and PDFs at multiple zoom scales. As the project evolves it's moving towards becoming a fully featured custom map view replacement with gestures and annotations.
Feature requests and pull-requests are most welcome.
- Display tiled bitmap images and single page PDFs with two separate classes
- Supports standard and high resolution displays
- You only need to provide one set of bitmap tiles; no need for @2x tiles
- A handy set of default UIGestureRecognizer actions and delegate callbacks
- Annotation support with an interface similar to MKMapView
- Demo code, example PNG tiles and PDF file included
- Supports iOS 4.0+
The JCTiledScrollView static library / classes are non-arc at the moment but can be converted to ARC with Xcode's refactor tool quite easily.
- You can drag annotations around over at the drag-annotations branch. This will come into master very soon
- JCTiledSCrollView is now packaged as a Static library within a workspace
- Updated source and demo to be compatible with Xcode's ARC refactor tool
- JCTiledScrollView is now provided as a static library
- Annotation support
- Merged experimental PDF rendering classes into the main project. Welcome JCTiledPDFScrollView.
- Added an initial set of UIGestureRecognizers with some optional default behaviour, similar to MKMapView
- Zooming in both directions
- Annotation selection
- Advanced UIGestureRecognizers (dragging overlays etc)
- Provide as a static library
- Cut your large images into tiles with Tile-Cutter by Jeff La Marche
- Cut your images on the command line with my fork of Chris Miles' experimental SliceTool program
- Shrink your bitmap tiles with Image Optim. It can half your tile size and improve performance greatly
- Subduing CATiledLayer by Matt Long (Cocoa is my Girlfriend)
- Apple Tech-Note Thread Safe UIKit Drawing (in iOS 4+) mentioned at WWDC 2010
- Tread safe objects in iOS4 UIGraphicsGetCurrentContext, UIImage, UIColor, UIFont
- Apple Documentation on Supporting High Resolution Screens
- Apple's View Programming Guide for iOS
- WWDC 2010 Session 104 - Designing Apps with ScrollViews
- WWDC 2011 Session 104 - Advanced Scroll View Techniques
- My presentation on CATiledLayer and JCTiledScrollView at Melbourne Cocoaheads
Initially created as an open source project for the February 2012 Melbourne Cocoaheads meeting.
Created by Jesse Collis jesse@jmcultimedia.com.au, @sirjec, JC Multimedia Design.
The "Skipping Girl" image is copyright (c) 2012, Jesse Collis and licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
The code is copyright (c) 2012, Jesse Collis jesse@jcmultimedia.com.au. All rights reserved.
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Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
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