问题
I need to check whether device has been connected properly to "My-Wifi" network or not. If it is connected then I will send some data to server otherwise not.
Right now I am just checking with the Internet connection, using Reachability class.
So how to check that?
回答1:
You can make use of CNCopySupportedInterfaces() call.
CFArrayRef interfaces = CNCopySupportedInterfaces();
CFIndex count = CFArrayGetCount(interfaces);
for (int i = 0; i < count; i++) {
CFStringRef interface = CFArrayGetValueAtIndex(interfaces, i);
CFDictionaryRef netinfo = CNCopyCurrentNetworkInfo(interface);
if (netinfo && CFDictionaryContainsKey(netinfo, kCNNetworkInfoKeySSID)) {
NSString *ssid = (__bridge NSString *)CFDictionaryGetValue(netinfo, kCNNetworkInfoKeySSID);
// Compare with your needed ssid here
}
if (netinfo)
CFRelease(netinfo);
}
CFRelease(interfaces);
In my experience, you will usually have one interface in the array which would either be a valid structure if you're connected or NULL
if you're not. Still I let the for loop be there just in case.
The __bridge
cast inside is only needed if you're using ARC.
来源:https://stackoverflow.com/questions/9342225/how-to-check-network-provider-name-in-ios-programming