判断网络是否设置了代理

+ (BOOL)getProxyStatus { NSDictionary *proxySettings = NSMakeCollectable([(NSDictionary *)CFNetworkCopySystemProxySettings() autorelease]); NSArray *proxies = NSMakeCollectable([(NSArray *)CFNetworkCopyProxiesForURL((CFURLRef)[NSURL URLWithString:@"http://www.google.com"], (CFDictionaryRef)proxySettings) autorelease]); NSDictionary *settings = [proxies objectAtIndex:0]; NSLog(@"host=%@", [settings objectForKey:(NSString *)kCFProxyHostNameKey]); NSLog(@"port=%@", [settings objectForKey:(NSString *)kCFProxyPortNumberKey]); NSLog(@"type=%@", [settings objectForKey:(NSString *)kCFProxyTypeKey]); if ([[settings objectForKey:(NSString *)kCFProxyTypeKey] isEqualToString:@"kCFProxyTypeNone"]) { //没有设置代理 return NO; } else { //设置代理了 return YES; } }