iOS-代码实现网络流量统计－wifi＋3g,2g

　

原理：通过函数getifaddrs来得到系统网络接口的信息，网络接口的信息, 包含在if_data字段中, 有很多信息, 但我现在只关心ifi_ibytes, ifi_obytes, 应该就是接收到的字节数和发送的字节数, 加起来就是流量了. 还发现, 接口的名字, 有en, pdp_ip, lo等几种形式, en应该是wifi, pdp_ip大概是3g或者gprs, lo是环回接口, 通过名字区分可以分别统计。

直接上代码：

 

添加头

#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)];

}

}