iOS 下载管理器:IADownloadManager
                 jopen
                 12年前
            
                    IADownloadManager 是 iOS 的下载管理器,可实现同时和按顺序逐个下载文件。
- Easy to integrate and use iOS download manager.
 - Easily download file with the very robust AFNetworking library.
 - Deal only with NSURL, you will never have to keep strong or weak references of the Download managers.
 - Download files in sequential and parallel order.
 - Make sure each file (NSURL) is being downloaded only once.
 - Have multiple listener/delegates on a single download operation.
 - Download operation unique by URL, never download a URL twice.
 - Cache the downloaded file in Memory and on Disk using EGOCache.
 - Easily add and remove listeners to observe the download operations.
 - Singleton classes for fast access and minimum memory overhead.
 - Ensure that the UI Thread is never blocked.
 - Delegate or Block event callbacks.
 - All of the above in two lines of code.
 
