时间：2020-10-19 14:33:00 | 栏目：iOS代码 | 点击：次
实例如下：
// 获取网络环境的方法
+ (NSString *)networktype{
NSArray *subviews = [[[[UIApplication sharedApplication] valueForKey:@"statusBar"] valueForKey:@"foregroundView"]subviews];
NSNumber *dataNetworkItemView = nil;
for (id subview in subviews) {
if([subview isKindOfClass:[NSClassFromString(@"UIStatusBarDataNetworkItemView") class]]) {
dataNetworkItemView = subview;
break;
}
}
switch ([[dataNetworkItemView valueForKey:@"dataNetworkType"]integerValue]) {
case 0:
return @"无服务";
case 1:
return @"2G";
case 2:
return @"3G";
case 3:
return @"4G";
case 4:
return @"LTE";
case 5:
return @"Wifi";
default:
break;
}
return @"";
}