【iPhone开发】ios统计流量代码

#include <ifaddrs.h>
#include <sys/socket.h>
#include <net/if.h>

1.3G/GPRS流量统计

int getGprs3GFlowIOBytes()
{
    struct ifaddrs *ifa_list = 0, *ifa;
    if (getifaddrs(&ifa_list) == -1)
    {
        return 0;
    }
 
    uint32_t iBytes = 0;
    uint32_t oBytes = 0;
 
    for (ifa = ifa_list; ifa; ifa = ifa->ifa_next)
    {
        if (AF_LINK != ifa->ifa_addr->sa_family)
            continue;
 
        if (!(ifa->ifa_flags & IFF_UP) && !(ifa->ifa_flags & IFF_RUNNING))
            continue;
 
        if (ifa->ifa_data == 0)
            continue;
 
        if (!strcmp(ifa->ifa_name, "pdp_ip0"))
        {
            struct if_data *if_data = (struct if_data *)ifa->ifa_data;
 
            iBytes += if_data->ifi_ibytes;
            oBytes += if_data->ifi_obytes;
			NSLog(@"%s :iBytes is %d, oBytes is %d",
				  ifa->ifa_name, iBytes, oBytes);
        }
    }
    freeifaddrs(ifa_list);
 
	return iBytes + oBytes;
}

返回的结果为byte

2.WIFI流量统计功能

- (long long int)getInterfaceBytes
{
    struct ifaddrs *ifa_list = 0, *ifa;
    if (getifaddrs(&ifa_list) == -1)
    {
        return 0;
    }
 
    uint32_t iBytes = 0;
    uint32_t oBytes = 0;
 
    for (ifa = ifa_list; ifa; ifa = ifa->ifa_next)
    {
        if (AF_LINK != ifa->ifa_addr->sa_family)
            continue;
 
        if (!(ifa->ifa_flags & IFF_UP) && !(ifa->ifa_flags & IFF_RUNNING))
            continue;
 
        if (ifa->ifa_data == 0)
            continue;
 
        /* Not a loopback device. */
        if (strncmp(ifa->ifa_name, "lo", 2))
        {
            struct if_data *if_data = (struct if_data *)ifa->ifa_data;
 
            iBytes += if_data->ifi_ibytes;
            oBytes += if_data->ifi_obytes;
 
//            NSLog(@"%s :iBytes is %d, oBytes is %d",
//                  ifa->ifa_name, iBytes, oBytes);
        }
    }
    freeifaddrs(ifa_list);
 
    return iBytes+oBytes;
}

以上获取的数据可以通过以下方式进行单位转换

NSString *bytesToAvaiUnit(int bytes)
{
	if(bytes < 1024)		// B
	{
		return [NSString stringWithFormat:@"%dB", bytes];
	}
	else if(bytes >= 1024 && bytes < 1024 * 1024)	// KB
	{
		return [NSString stringWithFormat:@"%.1fKB", (double)bytes / 1024];
	}
	else if(bytes >= 1024 * 1024 && bytes < 1024 * 1024 * 1024)	// MB
	{
		return [NSString stringWithFormat:@"%.2fMB", (double)bytes / (1024 * 1024)];
	}
	else	// GB
	{
		return [NSString stringWithFormat:@"%.3fGB", (double)bytes / (1024 * 1024 * 1024)];
	}
}