https://github.com/mayoff/uiimage-from-animated-gif

A UIImage category that loads animated GIFs
https://github.com/mayoff/uiimage-from-animated-gif

Last synced: 2 months ago
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A UIImage category that loads animated GIFs

• Host: GitHub
• URL: https://github.com/mayoff/uiimage-from-animated-gif
• Owner: mayoff
• License: cc0-1.0
• Created: 2012-01-28T05:08:07.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2015-12-22T16:52:22.000Z (about 9 years ago)
• Last Synced: 2024-04-14T01:10:46.013Z (9 months ago)
• Language: Objective-C
• Homepage:
• Size: 35.2 KB
• Stars: 878
• Watchers: 49
• Forks: 164
• Open Issues: 5
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-gif - UIimage from GIF - UIImage category that loads animated GIFs. (Libraries / Objective-C)

README

        
## Summary

This project defines a category `animatedGIF` on `UIImage`.  The category defines two methods.  This method creates an animated `UIImage` using the frames of the GIF in `data`:

    +[UIImage animatedImageWithAnimatedGIFData:(NSData *)data]

This method creates an animated `UIImage` using the frames of the GIF loaded from `url`:

    +[UIImage animatedImageWithAnimatedGIFURL:(NSURL *)url]

    

Look at the comments in `UIImage+animatedGIF.h` for details.

You can build and run the project to see a trivial demo app.

## To use this category in your own project

1. Copy `UIImage+animatedGIF.h` and `UIImage+animatedGIF.m` to your project.

2. Add `UIImage+animatedGIF.m` to your target's “Compile Sources” build phase, if you didn't tell Xcode to do that when you performed step 1.

3. Add `ImageIO.framework` to your target's "Link Binary With Libraries" build phase.

## Implementation notes

The implementation of this category uses the [Image I/O Framework](http://developer.apple.com/library/ios/#documentation/GraphicsImaging/Conceptual/ImageIOGuide/imageio_intro/ikpg_intro.html) to extract the images and durations from the GIF data.

[Diego Peinador](https://github.com/diegopeinador) provided the inspiration for handling variable-frame-rate animations, although I didn't end up using his code.

## Copyright or lack thereof

The contents of this repository are dedicated to the public domain, in accordance with the [CC0 1.0 Universal Public Domain Dedication](http://creativecommons.org/publicdomain/zero/1.0/), which is reproduced in the file `COPYRIGHT`.

Author: Rob Mayoff

2012-01-27