问题
I ve written an app that downloads files from a sever via http. The users will always be on WLAN when using my app. It downloads files of <10MB without any issues but the application just hangs for larger files. Is there a best practice way to download large files or do i need to implement some form of chunking?
Any code samples would be much appreciated. Many thanks Tony
回答1:
I would recommend using ASIHTTPRequest library.
It can download files on the background without blocking your app, and can even hook into into a progress bar or something like that. The "How to use it" provides lots of examples and sample code.
回答2:
Second on the ASIHTTPRequest library, it really is very good. In addition, try downloading a much smaller part of the file(s) for a given request (I'm assuming they are XML or JSON files). Only get more data if the user is requesting it (eg, user is scrolling past a certain point in a tableview). Something to consider anyway.
来源：https://stackoverflow.com/questions/2066165/how-to-download-large-files-using-objective-c-on-iphone