I have a project requirement that my iOS App (written in Swift) should get notification when the iPhone gets connected to an Android device/Mac through a cable (e.g. lightning-to-usb). I heard this is possible with Darwin Notification but I've never worked with it before, and seems like there isn't any well-documented article that contains all about Darwin Notification from Apple. Can anyone help me with which notification (status/identifier) of the Darwin Notification Centre to look for to get notified when such wired connection is made between two devices (one being iPhone ofcourse)?

I'm trying to learn how to use Darwin Notifications, and I'm having trouble getting my callback function to trigger. I've been writing a command line tool just to learn how to get Darwin notifications working, but eventually will use them in an iPhone app. I have sample code below; can anyone with Darwin Notifications experience point out what am I doing wrong? //callback static void myCallback(CFNotificationCenterRef center, void *observer, CFStringRef name, const void *object, CFDictionaryRef userInfo) { NSLog(@"In callback function"); } int main(int argc, const char * argv[]) { // Add Observer CFNotificationCenterAddObserver( CFNotificationCenterGetDarwinNotifyCenter(), //center NULL, //observer myCallback, //callback CFSTR("sanity_check"), //event name NULL, //object CFNotificationSuspensionBehaviorDeliverImmediately ); // Post notification 1 CFNotificationCenterPostNotification( CFNotificationCenterGetDarwinNotifyCenter(), // center CFSTR("sanity_check"), // event name NULL, //object NULL, //userinfo dictionary true); // Post notification 2 notify_post("sanity_check"); return 0; }