iOS开发适配之通过系统statusBar判断设备网络状态（iPhone X 已适配）

通过系统statusBar判断设备网络状态 （已适配iPhone X）

// 获取设备网络状态
+ (NSString *)deviceNetWorkStatus
{
    UIApplication *app = [UIApplication sharedApplication];
    int type = 0;
    if (!IS_IPHONE_X) {  // 非iPhone X
        NSArray *children = [[[app valueForKeyPath:@"statusBar"] valueForKeyPath:@"foregroundView"] subviews];
        for (id child in children) {
            if ([child isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
                type = [[child valueForKeyPath:@"dataNetworkType"] intValue];
            }
        }
    } else {  //iPhone X
        NSArray *array = [[[[app valueForKeyPath:@"statusBar"] valueForKeyPath:@"statusBar"] valueForKeyPath:@"foregroundView"] subviews];
        NSArray *children = [array[2] subviews];
        for (id child in children) {
            if ([child isKindOfClass:NSClassFromString(@"_UIStatusBarWifiSignalView")]) {
                type = 5;
            } else if ([child isKindOfClass:NSClassFromString(@"_UIStatusBarStringView")]){
                return [child valueForKeyPath:@"originalText"];
            }
        }
    }

    switch (type) {
        case 1:
            return @"2G";
        case 2:
            return @"3G";
        case 3:
            return @"4G";
        case 5:
            return @"WIFI";
        default:
            return @"UNKNOWN";//代表未知网络
    }
}