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SKPhotoBrowser
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Add cache get/set with URL request/response

This commit is contained in:
Kevin Wolkober 2016-06-13 18:40:46 +08:00
parent 2fcb2282e5
commit eb8107dc89
2 changed files with 27 additions and 7 deletions
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10
SKPhotoBrowser/SKCachable.swift
View File

@ -8,8 +8,16 @@
import UIKit.UIImage
public protocol SKCacheable {
public protocol SKImageCacheable: SKCacheable {
func imageForKey(key: String) -> UIImage?
func setImage(image: UIImage, forKey key: String)
func removeImageForKey(key: String)
}
public protocol SKRequestResponseCacheable: SKCacheable {
func cachedResponseForRequest(request: NSURLRequest) -> NSCachedURLResponse
func storeCachedResponse(cachedResponse: NSCachedURLResponse, forRequest request: NSURLRequest)
}
public protocol SKCacheable {
}

24
SKPhotoBrowser/SKCache.swift
View File

@ -10,27 +10,39 @@ import UIKit
public class SKCache {
static let sharedCache = SKCache()
var imageCache: SKCacheable
public static let sharedCache = SKCache()
public var imageCache: SKCacheable
init() {
self.imageCache = SKDefaultImageCache()
}
public func imageForKey(key: String) -> UIImage? {
return self.imageCache.imageForKey(key)
return (self.imageCache as! SKImageCacheable).imageForKey(key)
}
public func setImage(image: UIImage, forKey key: String) {
self.imageCache.setImage(image, forKey: key)
(self.imageCache as! SKImageCacheable).setImage(image, forKey: key)
}
public func removeImageForKey(key: String) {
self.imageCache.removeImageForKey(key)
(self.imageCache as! SKImageCacheable).removeImageForKey(key)
}
public func imageForRequest(request: NSURLRequest) -> UIImage? {
let response = (self.imageCache as! SKRequestResponseCacheable).cachedResponseForRequest(request)
let data = response.data
return UIImage(data: data)
}
public func setImageData(data: NSData, response: NSURLResponse, request: NSURLRequest) {
let cachedResponse = NSCachedURLResponse(response: response, data: data)
(self.imageCache as! SKRequestResponseCacheable).storeCachedResponse(cachedResponse, forRequest: request)
}
}
class SKDefaultImageCache: SKCacheable {
class SKDefaultImageCache: SKImageCacheable {
var cache: NSCache
init() {