檢查互聯網連接

Question

我試過檢查是否有連接到google.com 但是這種方法無法正常工作？ 你能告訴我我的錯嗎？ 此致拉斐爾

- (BOOL)networkConnected { 
    SCNetworkReachabilityFlags flags = 0; 
    SCNetworkReachabilityRef netReachability; 
    BOOL retrievedFlags = NO; 
    netReachability = SCNetworkReachabilityCreateWithName(CFAllocatorGetDefault(), [@"http://www.google.com" UTF8String]); 

    if (netReachability) { 
     retrievedFlags = SCNetworkReachabilityGetFlags(netReachability, &flags); 
     CFRelease(netReachability); 
    } 
    if (!retrievedFlags || !flags) { 
     NSLog(@"no"); 
     return NO; 
    } 
    NSLog(@"yes"); 
    return YES; 
} 

Answer 1

你最好檢查Apple Reacheability example

Answer 2

你可以使用這個在Objective-C的iPhone？

DWORD flags, reserved; 
flags = reserved = 0; 
if(!InternetGetConnectedState(&flags, reserved)) 
{ 
    // No internet connection 
} else { 
    // Have internet connection 
}