iOS開發監測手機流量使用情況

獲取手機使用流量存在幾個問題:
①iOS是無法像Android一樣監聽到開機廣播和關機廣播的,立刻關機再開機，監測的移動網絡下流量會默認清空。
②應用在後臺運行時，突然被殺死，無法對流量統計，需要在應用進入後臺時先保存流量使用情況
③如果用戶第一次打開流量統計軟件是在2月份，當第3個月打開時，應該對2月份使用的流量清零。但是問題來了，我們所能獲取的是從監測開始，消耗的總流量。套餐流量爲每個月1000M，如果2月份消耗了200M流量，3月消耗了300M流量，我們無法判斷3月份流量剩餘情況，我們獲得的使用流量爲500M。建議當新的一個月開始時，用戶首次打開app，提醒用戶重新設置剩餘流量。

注意：請在真機上測試該代碼
核心代碼:
HTTraffic.h

#import <Foundation/Foundation.h>

@interface HTTraffic : NSObject

+ (NSDictionary *)getTrafficMonitorings;

@end

HTTraffic.m

#import "HTTraffic.h"
#include <arpa/inet.h>
#include <net/if.h>
#include <ifaddrs.h>
#include <net/if_dl.h>

@implementation HTTraffic

/**
 *  WiFiSent WiFi發送流量
 *  WiFiReceived WiFi接收流量
 *  WWANSent 移動網絡發送流量
 *  WWANReceived 移動網絡接收流量
 */
+ (NSDictionary *)getTrafficMonitorings {
    NSDictionary * trafficDict = [[NSDictionary alloc] init];
    BOOL success;
    struct ifaddrs *addrs;
    const struct ifaddrs *cursor;
    const struct if_data *networkStatisc;
    int WiFiSent = 0;
    int WiFiReceived = 0;
    int WWANSent = 0;
    int WWANReceived = 0;
    NSString *name=[[NSString alloc]init];
    success = getifaddrs(&addrs) == 0;
    if (success) {
        cursor = addrs;
        while (cursor != NULL) {
            name=[NSString stringWithFormat:@"%s",cursor->ifa_name];

            if (cursor->ifa_addr->sa_family == AF_LINK) {
                //wifi消耗流量
                if ([name hasPrefix:@"en"]) {
                    networkStatisc = (const struct if_data *) cursor->ifa_data;
                    WiFiSent+=networkStatisc->ifi_obytes;
                    WiFiReceived+=networkStatisc->ifi_ibytes;
                }

                //移動網絡消耗流量
                if ([name hasPrefix:@"pdp_ip0"]) {
                    networkStatisc = (const struct if_data *) cursor->ifa_data;
                    WWANSent+=networkStatisc->ifi_obytes;
                    WWANReceived+=networkStatisc->ifi_ibytes;
                }
            }
            cursor = cursor->ifa_next;
        }
        freeifaddrs(addrs);
    }
    NSString *WiFiSentTraffic = [NSString stringWithFormat:@"%d",WiFiSent];
    NSString *WiFiReceivedTraffic = [NSString stringWithFormat:@"%d",WiFiReceived];
    NSString *WiFiTotalTraffic = [NSString stringWithFormat:@"%d",WiFiSent + WiFiReceived];
    NSString *WWANSentTraffic = [NSString stringWithFormat:@"%d",WWANSent];
    NSString *WWANReceivedTraffic = [NSString stringWithFormat:@"%d",WWANReceived];
    NSString *WWANTotalTraffic = [NSString stringWithFormat:@"%d",WWANSent+WWANReceived];
    trafficDict = @{
                    @"WiFiSentTraffic":WiFiSentTraffic,
                    @"WiFiReceivedTraffic":WiFiReceivedTraffic,
                    @"WiFiTotalTraffic":WiFiTotalTraffic,
                    @"WWANSentTraffic":WWANSentTraffic,
                    @"WWANReceivedTraffic":WWANReceivedTraffic,
                    @"WWANTotalTraffic":WWANTotalTraffic
                    };

    return trafficDict;
}

@end

流量監測demo