mirror of
https://github.com/ecency/ecency-mobile.git
synced 2024-12-22 12:51:42 +03:00
104 lines
4.5 KiB
Markdown
104 lines
4.5 KiB
Markdown
FLAnimatedImage is a performant animated GIF engine for iOS:
|
|
|
|
- Plays multiple GIFs simultaneously with a playback speed comparable to desktop browsers
|
|
- Honors variable frame delays
|
|
- Behaves gracefully under memory pressure
|
|
- Eliminates delays or blocking during the first playback loop
|
|
- Interprets the frame delays of fast GIFs the same way modern browsers do
|
|
|
|
It's a well-tested [component that powers all GIFs in Flipboard](http://engineering.flipboard.com/2014/05/animated-gif/). To understand its behavior it comes with an interactive demo:
|
|
|
|
|
|
|
|
## Who is this for?
|
|
|
|
- Apps that don't support animated GIFs yet
|
|
- Apps that already support animated GIFs but want a higher performance solution
|
|
- People who want to tinker with the code ([the corresponding blog post](http://engineering.flipboard.com/2014/05/animated-gif/) is a great place to start; also see the *To Do* section below)
|
|
|
|
## Installation & Usage
|
|
|
|
FLAnimatedImage is a well encapsulated drop-in component. Simply replace your `UIImageView` instances with instances of `FLAnimatedImageView` to get animated GIF support. There is no central cache or state to manage.
|
|
|
|
If using CocoaPods, the quickest way to try it out is to type this on the command line:
|
|
|
|
```shell
|
|
$ pod try FLAnimatedImage
|
|
```
|
|
|
|
To add it to your app, copy the two classes `FLAnimatedImage.h/.m` and `FLAnimatedImageView.h/.m` into your Xcode project or add via [CocoaPods](http://cocoapods.org) by adding this to your Podfile:
|
|
|
|
```ruby
|
|
pod 'FLAnimatedImage', '~> 1.0'
|
|
```
|
|
|
|
If using [Carthage](https://github.com/Carthage/Carthage), add following line into your `Cartfile`
|
|
|
|
```
|
|
github "Flipboard/FLAnimatedImage"
|
|
```
|
|
|
|
In your code, `#import "FLAnimatedImage.h"`, create an image from an animated GIF, and setup the image view to display it:
|
|
|
|
```objective-c
|
|
FLAnimatedImage *image = [FLAnimatedImage animatedImageWithGIFData:[NSData dataWithContentsOfURL:[NSURL URLWithString:@"https://upload.wikimedia.org/wikipedia/commons/2/2c/Rotating_earth_%28large%29.gif"]]];
|
|
FLAnimatedImageView *imageView = [[FLAnimatedImageView alloc] init];
|
|
imageView.animatedImage = image;
|
|
imageView.frame = CGRectMake(0.0, 0.0, 100.0, 100.0);
|
|
[self.view addSubview:imageView];
|
|
```
|
|
|
|
It's flexible to integrate in your custom image loading stack and backwards compatible to iOS 6.
|
|
|
|
It uses ARC and the Apple frameworks `QuartzCore`, `ImageIO`, `MobileCoreServices`, and `CoreGraphics`.
|
|
|
|
It is capable of fine-grained logging. A block can be set on `FLAnimatedImage` that's invoked when logging occurs with various log levels via the `+setLogBlock:logLevel:` method. For example:
|
|
|
|
```objective-c
|
|
// Set up FLAnimatedImage logging.
|
|
[FLAnimatedImage setLogBlock:^(NSString *logString, FLLogLevel logLevel) {
|
|
// Using NSLog
|
|
NSLog(@"%@", logString);
|
|
|
|
// ...or CocoaLumberjackLogger only logging warnings and errors
|
|
if (logLevel == FLLogLevelError) {
|
|
DDLogError(@"%@", logString);
|
|
} else if (logLevel == FLLogLevelWarn) {
|
|
DDLogWarn(@"%@", logString);
|
|
}
|
|
} logLevel:FLLogLevelWarn];
|
|
```
|
|
|
|
Since FLAnimatedImage is licensed under MIT, it's compatible with the terms of using it for any app on the App Store.
|
|
|
|
## To Do
|
|
- Support other animated image formats such as APNG or WebP (WebP support implemented [here](https://github.com/Flipboard/FLAnimatedImage/pull/86))
|
|
- Integration into network libraries and image caches
|
|
- Investigate whether `FLAnimatedImage` should become a `UIImage` subclass
|
|
- Smarter buffering
|
|
- Bring demo app to iPhone
|
|
|
|
This has successfully shipped to many people as is, but please do come with your questions, issues and pull requests!
|
|
|
|
## Select apps using FLAnimatedImage
|
|
- [Dropbox](https://www.dropbox.com)
|
|
- [Medium](https://medium.com)
|
|
- [Facebook](https://facebook.com)
|
|
- [Pinterest](https://pinterest.com)
|
|
- [LiveBooth](http://www.liveboothapp.com)
|
|
- [Design Shots](https://itunes.apple.com/app/id792517951)
|
|
- [lWlVl Festival](http://lwlvl.com)
|
|
- [Close-up](http://closeu.pe)
|
|
- [Zip Code Finder](https://itunes.apple.com/app/id893031254)
|
|
- [getGIF](https://itunes.apple.com/app/id964784701)
|
|
- [Giffage](http://giffage.com)
|
|
- [Flipboard](https://flipboard.com)
|
|
- [Gifalicious](https://itunes.apple.com/us/app/gifalicious-see-your-gifs/id965346708?mt=8)
|
|
- [Slack](https://slack.com/)
|
|
- [Telegram](https://telegram.org/)
|
|
- [HashPhotos](https://itunes.apple.com/app/id685784609)
|
|
- [Ello](https://ello.co/)
|
|
- [Dumpert](http://dumpert.nl)
|
|
|
|
If you're using FLAnimatedImage in your app please open a PR to add it to this list!
|