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efrain |
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//
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// ImageCache.swift
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// twogetskills
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//
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// Created by Efrain Yanez Recanatini on 3/9/22.
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//
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import UIKit
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protocol ImageCache {
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subscript(_ key: NSString) -> UIImage? { get set }
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}
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struct TemporaryImageCache: ImageCache {
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subscript(key: NSString) -> UIImage? {
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get {
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cache.object(forKey: key as NSString)
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}
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set {
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newValue == nil ? cache.removeObject(forKey: key as NSString) : cache.setObject(newValue!, forKey: key as NSString)
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}
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}
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private let cache: NSCache<NSString, UIImage> = {
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let cache = NSCache<NSString, UIImage>()
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cache.countLimit = 100 // 100 items
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cache.totalCostLimit = 1024 * 1024 * 600 // 600 MB
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return cache
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}()
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/*
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subscript(_ key: String) -> UIImage? {
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get { cache.object(forKey: key as NSString) }
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set { newValue == nil ? cache.removeObject(forKey: key as NSString) : cache.setObject(newValue!, forKey: key as NSString) }
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}
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*/
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}
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/*
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protocol ImageCache {
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subscript(_ url: URL) -> UIImage? { get set }
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}
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struct TemporaryImageCache: ImageCache {
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private let cache: NSCache<NSURL, UIImage> = {
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let cache = NSCache<NSURL, UIImage>()
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cache.countLimit = 100 // 100 items
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cache.totalCostLimit = 1024 * 1024 * 600 // 600 MB
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return cache
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}()
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subscript(_ key: URL) -> UIImage? {
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get { cache.object(forKey: key as NSURL) }
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set { newValue == nil ? cache.removeObject(forKey: key as NSURL) : cache.setObject(newValue!, forKey: key as NSURL) }
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}
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}
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*/
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