enum { NSURLRequestUseProtocolCachePolicy = 0, NSURLRequestReloadIgnoringLocalCacheData = 1, NSURLRequestReloadIgnoringLocalAndRemoteCacheData = 4, // Unimplemented NSURLRequestReloadIgnoringCacheData = NSURLRequestReloadIgnoringLocalCacheData, NSURLRequestReturnCacheDataElseLoad = 2, NSURLRequestReturnCacheDataDontLoad = 3, NSURLRequestReloadRevalidatingCacheData = 5, // Unimplemented }; typedef NSUInteger NSURLRequestCachePolicy;
UIWebView加载缓存的4种方式,布布扣,bubuko.com
原文:http://blog.csdn.net/xietao3/article/details/21618777