iOS 监测是否设置网络代理

工作备忘

+ (BOOL)getProxyStatusURL:(NSURL *)url {
    
    NSDictionary *proxySettings = (__bridge NSDictionary *)(CFNetworkCopySystemProxySettings());
    NSArray *proxies = (__bridge NSArray *)(CFNetworkCopyProxiesForURL((__bridge CFURLRef _Nonnull)(url), (__bridge CFDictionaryRef _Nonnull)(proxySettings)));
    NSLog(@"\n%@",proxies);
    
    NSDictionary *settings = proxies[0];
    NSLog(@"%@",[settings objectForKey:(NSString *)kCFProxyHostNameKey]);
    NSLog(@"%@",[settings objectForKey:(NSString *)kCFProxyPortNumberKey]);
    NSLog(@"%@",[settings objectForKey:(NSString *)kCFProxyTypeKey]);
    
    if ([[settings objectForKey:(NSString *)kCFProxyTypeKey] isEqualToString:@"kCFProxyTypeNone"])
    {
        NSLog(@"没设置代理");
        return NO;
    }
    else
    {
        NSLog(@"设置了代理");
        return YES;
    }
}