iphone最牛判断当前手机网络连接类型wifi-2G-3G-4G-5G

http://www.xmsdn.net/iso/iphone-wifi-2g-3g-4g/

//// 网络类型
03
04	typedef enum {
05	NETWORK_TYPE_NONE= 0,
06	NETWORK_TYPE_2G= 1,
07	NETWORK_TYPE_3G= 2,
08	NETWORK_TYPE_4G= 3,
09	NETWORK_TYPE_5G= 4,// 5G目前为猜测结果
10	NETWORK_TYPE_WIFI= 5,
11	}NETWORK_TYPE;
12
13	+(NETWORK_TYPE)getNetworkTypeFromStatusBar {
14
15	UIApplication *app = [UIApplication sharedApplication];
16	NSArray *subviews = [[[app valueForKey:@"statusBar"] valueForKey:@"foregroundView"] subviews];
17	NSNumber *dataNetworkItemView = nil;
18
19	for (id subview in subviews) {
20	if([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
21	dataNetworkItemView = subview;
22	break;
23	}
24	}
25	NETWORK_TYPE nettype = NETWORK_TYPE_NONE;
26	NSNumber * num = [dataNetworkItemView valueForKey:@"dataNetworkType"];
27	nettype = [num intValue];
28
29	return nettype;
30	}