判断iPhone的WiFi是否打开的两种方法

#import <ifaddrs.h>
#import <net/if.h>
#import <SystemConfiguration/CaptiveNetwork.h>
- (BOOL) isWiFiEnabled {
NSCountedSet * cset = [NSCountedSet new];
struct ifaddrs *interfaces;
if( ! getifaddrs(&interfaces) ) {
for( struct ifaddrs *interface = interfaces; interface; interface = interface->ifa_next) 
{
if ( (interface->ifa_flags & IFF_UP) == IFF_UP ) {
[cset addObject:[NSString stringWithUTF8String:interface->ifa_name]];
}
}
}
return [cset countForObject:@"awdl0"] > 1 ? YES : NO;
}

- (BOOL)isWiFiConnected {
UIApplication *app = [UIApplication sharedApplication];
NSArray *children = [[[app valueForKeyPath:@"statusBar"] valueForKeyPath:@"foregroundView"] subviews];
//获得到网络返回码
for (id child in children) {
if ([child isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
int netType = [[child valueForKeyPath:@"dataNetworkType"] intValue];
NSLog(@"type:%@",@(netType));
if (netType == 1) {
NSLog(@"2G");
return NO;
}
else if (netType == 2) {
NSLog(@"3G");
return NO;
}
else if (netType == 3) {
NSLog(@"4G");
return NO;
}
else if (netType == 5){
NSLog(@"Wifi");
return YES;
}
// 1，2，3，5 分别对应的网络状态是2G、3G、4G及WIFI。(需要判断当前网络类型写个switch 判断就OK)
}
}
NSLog(@"not open network or no net work");
return NO;
}