清除图片的缓存

[iCeors]

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Issue Description

缓存清不掉

What

同一张《本地》（本地沙盒里，本地生成的）图片，多个imageview去展示，因为这些iv的大小不一样，结合downsample之后，他们缓存key也不一样。
用户可以修改本地图片，变化后，我需要清理掉所有【这张图片】的缓存，以便让用户看到最新的样子。
我看了源码，自己构建了相对应的缓存key（把所有可能出现的imageview的大小记录下来，无脑添加到后缀，构建缓存key，无脑调用mem和disk的清理方法），去清理，还是在某些场景下，莫名其妙的清不掉，非常影响用户体验。
只想要一个api可以清理掉【这张图片】的缓存，也就是说，不论是经过什么变换，缓存里有多少个不同变换的key，清理【这张图片】的所有缓存。

Reproduce

[The steps to reproduce this issue. What is the url you were trying to load, where did you put your code, etc.]

Other Comment

[Add anything else here]

[iCeors]

复盘发现，是因为app重启，丢失了所有processor的内容，导致缓存清理不掉。
把processor融合到图片缓存key，而不提供单纯的清理某张图片派生出所有图片缓存的api，面对一些常见场景的时候，有些无力。。。

[onevcat]

这个场景，我个人现在的建议是，你可以为每个URL设置一个 cache (伪代码，不一定正确)：

var caches = [String: ImageCache]()

func imageCacheForURL(_ url: URL) -> ImageCache {
    caches[url.absoluteString] ?? {
        let c = ImageCache(name: url.absoluteString)
        caches[url.absoluteString] = c
        return c
    }()
}

let imageView: UIImageView
imageView.kf.setImage(with: url, options: [.processor(processor1), .targetCache(imageCacheForURL(url))])
imageView.kf.setImage(with: url, options: [.processor(processor2), .targetCache(imageCacheForURL(url))])

// Later
imageCacheForURL(url).clearCache()

[iCeors]

感谢大佬提供的思路，看起来很简洁！祝您新年快乐，万事如意～发自我的 iPhone在 2024年2月4日，16:27，Wei Wang ***@***.***> 写道： 这个场景，我个人现在的建议是，你可以为每个URL设置一个 cache (伪代码，不一定正确)： var caches = [String: ImageCache]() func imageCacheForURL(_ url: URL) -> ImageCache { caches[url.absoluteString] ?? { let c = ImageCache(name: url.absoluteString) caches[url.absoluteString] = c return c }() } let imageView: UIImageView imageView.kf.setImage(with: url, options: [.processor(processor1), .targetCache(imageCacheForURL(url))]) imageView.kf.setImage(with: url, options: [.processor(processor2), .targetCache(imageCacheForURL(url))]) // Later imageCacheForURL(url).clearCache() —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>