如何知道網絡狀態是否為iOS上的WiFi熱點

Question

現在，我可以識別WiFi / 2G / 3G / 4G，但是當狀態為WiFi熱點時， AFNetworkReachabilityManager或Reachability也可以將狀態識別為WiFi。 非常感謝，請幫助我達到這一要求。

Answer 1

我找到了正確的方法：

- (void)startMonitorWifiChange {
    CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(),
                                    NULL,
                                    &onNotifyCallback,
                                    CFSTR("com.apple.system.config.network_change"),
                                    NULL,
                                    CFNotificationSuspensionBehaviorDeliverImmediately);
}
static void onNotifyCallback(CFNotificationCenterRef center,
                             void *observer,
                             CFStringRef name,
                             const void *object,
                             CFDictionaryRef userInfo) {
    if (CFStringCompare(name, CFSTR("com.apple.system.config.network_change"), kCFCompareCaseInsensitive) == kCFCompareEqualTo) {
        //TODO when wifi changed
        [[BaiduLocationManager sharedManager].baiduLocationManager requestNetworkState];
    }
    else {
        NBLog(@"intercepted %@", name);
    }
}
- (void)stopMonitorWifiChange {
    CFNotificationCenterRemoveObserver(CFNotificationCenterGetDarwinNotifyCenter(),
                                       NULL,
                                       CFSTR("com.apple.system.config.network_change"),
                                       NULL);
}