从Web下载和缓存图片的Swift库：Kingfisher

jopen 10年前

Kingfisher是一个轻量级和纯Swift实现的用于从Web下载和缓存图片的库。这个项目源于 SDWebImage，它让你可以在你的下一个项目中使用纯Swift代替实现。

特性

Everything in Kingfisher goes asynchronously, not only downloading, but also caching. That means you can never worry about blocking your UI thread.
Multiple-layer cache. Downloaded image will be cached in both memory and disk. So there is no need to download it again and this could boost your app dramatically.
Cache management. You can set the max duration or size the cache could take. And the cache will also be cleaned automatically to prevent taking too much resource.
Modern framework. Kingfisher usesNSURLSessionand the latest technology of GCD, which makes it a strong and swift framework. It also provides you easy APIs to use.
Cancellable processing task. You can cancel the downloading or retriving image process if it is not needed anymore.
Independent components. You can use the downloader or caching system separately. Or even create your own cache based on Kingfisher's code.
Options to decompress the image in background before render it, which could improve the UI performance.
A category overUIImageViewfor setting image from an URL directly.