rishi420 / WARCache

This NSCache subclass tries to cache data in memory.

WARCache

This NSCache subclass tries to cache data in memory.

Setup

• Xcode 8
• Swift 3
• Simply drag and drop the "WARCache.swift" in your project.

How to use

WARCache.shared.fech(url: searchURL) { (data, error) in
    // cached data or new data from server
}

Example included with the project

How to test

• Search with same string more than once. The first time it will take more time as it fetch from server.
• To test same image requested by multiple sources simultaneously (even before it has loaded) uncomment line 100 of Flickr.swift
• Logs on debuger console will also help

Reference

Reason for NSCache subclass: NSCache is basically just an NSMutableDictionary that automatically evicts objects in order to free up space in memory as needed. Source: NSCache

Set number of concurrent downloads (Not implemented) HTTPMaximumConnectionsPerHost has some limitation. see Set number of concurrent downloads also How do I use NSOperationQueue with NSURLSession

There is a popular open source: HanekeSwift

Initial Project taken from UICollectionView Tutorial: Getting Started and then modified Flickr.swift and added WARCache.swift remaining files are untouched