62 lines
2.1 KiB
Markdown
62 lines
2.1 KiB
Markdown
<img src="https://db.tt/mZ1iMNXO" width="100" />
|
|
|
|
Adds performant animated GIF support to UIKit. If you're looking for the Japanese prefecture, click [here](https://goo.gl/maps/CCeAc).
|
|
|
|
#### How?
|
|
|
|
Gifu uses a `UIImageView` subclass and an animator that keeps track of frames and their durations.
|
|
|
|
It uses `CADisplayLink` to animate the view and only keeps a limited number of
|
|
resized frames in-memory, which exponentially minimizes memory usage for large GIF files (+300 frames).
|
|
|
|
The figure below summarizes how this works in practice. Given an image
|
|
containing 10 frames, Gifu will load the current frame (red), pre-load the next two frames in this example (orange), and nullify all the other frames to free up memory (gray):
|
|
|
|
<img src="https://db.tt/ZLfx23hg" width="300" />
|
|
|
|
#### Install
|
|
|
|
If you use [Carthage](https://github.com/Carthage/Carthage), add this to your `cartfile`: `github "kaishin/gifu"`.
|
|
|
|
If your prefer Git submodules or want to support iOS 7, you want to add the files in `source` to your Xcode project.
|
|
|
|
#### Usage
|
|
|
|
Start by instantiating an `AnimatableImageView` either in code or Interface Builder, then call `animateWithImage(named:)` or `animateWithImageData(data:)` on it.
|
|
|
|
```swift
|
|
let imageView = AnimatableImageView(frame: CGRect(...))
|
|
imageView.animateWithImage(named: "mugen.gif")
|
|
```
|
|
You can stop the animation anytime using `imageView.stopAnimatingGIF()`, and resume
|
|
it using `imageView.startAnimatingGIF()`.
|
|
|
|
The `isAnimatingGIF()` method returns the current animation state of the view if it has an animatable image.
|
|
|
|
#### Demo App
|
|
|
|
Clone or download the repository and open `Gifu.xcworkspace` to check out the demo app.
|
|
|
|
#### Compatibility
|
|
|
|
- iOS 7+
|
|
|
|
#### Roadmap
|
|
|
|
- Documentation.
|
|
- Add ability to set the frame-rate
|
|
|
|
#### Contributors
|
|
|
|
- [Reda Lemeden](https://github.com/kaishin)
|
|
- [Tony DiPasquale](https://github.com/tonyd256)
|
|
|
|
#### Misc
|
|
|
|
- The font used in the logo is [Azuki](http://www.myfonts.com/fonts/bluevinyl/azuki/)
|
|
- The characters used in the icon and example image in the demo are from [Samurai Champloo](https://en.wikipedia.org/wiki/Samurai_Champloo).
|
|
|
|
#### License
|
|
|
|
See LICENSE.
|