Question

我正在尝试每天跟踪数据使用情况。我得到了一些跟踪数据使用情况的提示，但没有得到如何计算1天的数据使用情况。 IOS应用程序“我的数据管理器”跟踪数据使用情况，并按日/月提供使用情况。

在特定时间间隔（1天/ 1个月）内获取数据的原因可能是什么？

数据使用跟踪代码：

- (NSArray *)getDataCounters
{
    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]autorelease];

    success = getifaddrs(&addrs) == 0;
    if (success) 
    {
        cursor = addrs;
        while (cursor != NULL) 
        {
            name=[NSString stringWithFormat:@"%s",cursor->ifa_name];
            NSLog(@"ifa_name %s == %@\n", cursor->ifa_name,name);
            // names of interfaces: en0 is WiFi ,pdp_ip0 is WWAN 

            if (cursor->ifa_addr->sa_family == AF_LINK) 
            {
                if ([name hasPrefix:@"en"]) 
                {
                    networkStatisc = (const struct if_data *) cursor->ifa_data;
                    WiFiSent+=networkStatisc->ifi_obytes;
                    WiFiReceived+=networkStatisc->ifi_ibytes;
                    NSLog(@"WiFiSent %d ==%d",WiFiSent,networkStatisc->ifi_obytes);
                    NSLog(@"WiFiReceived %d ==%d",WiFiReceived,networkStatisc->ifi_ibytes);
                }

                if ([name hasPrefix:@"pdp_ip"]) 
                {
                    networkStatisc = (const struct if_data *) cursor->ifa_data;
                    WWANSent+=networkStatisc->ifi_obytes;
                    WWANReceived+=networkStatisc->ifi_ibytes;
                    NSLog(@"WWANSent %d ==%d",WWANSent,networkStatisc->ifi_obytes);
                    NSLog(@"WWANReceived %d ==%d",WWANReceived,networkStatisc->ifi_ibytes);
                } 
            }

            cursor = cursor->ifa_next;
        }

        freeifaddrs(addrs);
    }       

    return [NSArray arrayWithObjects:[NSNumber numberWithInt:WiFiSent], [NSNumber numberWithInt:WiFiReceived],[NSNumber numberWithInt:WWANSent],[NSNumber numberWithInt:WWANReceived], nil];
}

Answer 1

据我所知，从一段时间内无法获取该信息，您只能获取当前数据。因此，您应该跟踪数据使用情况并根据当前日期进行存储。然后，您可以显示以前跟踪的信息。

每天跟踪iPhone数据使用情况

1 个答案: