我正在尝试获取真实的流量统计数据。但是，当我一整天都在计算 `TrafficStats.getMobileTxBytes()` 时，它比我的数据包还多？

Question

例如。我有一个 1.5 GB 的数据包。它给出的总和为 2.0 GB 或更多。关于如何每秒获得正确速度的任何想法。

Answer 1

TrafficStats.getTotalRxBytes() does not return your data pack value. It refers to the total received bytes (either wifi/mobile) since the last boot (turning ON phone). For mobile data, it will be TrafficStats.getMobileRxBytes()。更重要的是，这些值在每次重新启动设备时都会重置。

I have a 1.5 GB data pack. It gives the total sum of 2.0 GB or more than that .

android 系统对您的数据包一无所知。你一次又一次地添加它。当你在某个时刻调用 TrafficStats.getMobileRxBytes() 时，它会显示自上次启动以来到此时为止接收到的移动数据总量 returns。下面是解释。希望这会有所帮助。

// Suppose, you have just rebooted your device, then received 400 bytes and transmitted 300 bytes of mobile data
// After reboot, so far 'totalReceiveCount' bytes have been received by your device over mobile data.
// After reboot, so far 'totalTransmitCount' bytes have been sent from your device over mobile data.
// Hence after reboot, so far 'totalDataUsed' bytes used actually.
long totalReceiveCount = TrafficStats.getMobileRxBytes();
long totalTransmitCount = TrafficStats.getMobileTxBytes();
long totalDataUsed = totalReceiveCount + totalTransmitCount;

Log.d("Data Used", "" + totalDataUsed + " bytes"); // This will log 700 bytes

// After sometime passed, another 200 bytes have been transmitted from your device over mobile data.
totalDataUsed = TrafficStats.getMobileRxBytes() + TrafficStats.getMobileTxBytes();

Log.d("Data Used", "" + totalDataUsed + " bytes"); // Now this will log 900 bytes

any idea about how to get correct speed every second.

您无法通过这种方式获得实际速度。您只能计算并显示一秒钟内有多少字节 received/transmitted。我认为 android 中的所有速度计都做同样的事情。类似于以下内容：

class SpeedMeter {
    private long uptoNow = 0;
    private final ScheduledExecutorService scheduler = Executors.newScheduledThreadPool(1);
    private ScheduledFuture futureHandle;

    public void startMeter() {
        final Runnable meter = new Runnable() {
            public void run() {
                long now = TrafficStats.getMobileRxBytes() + TrafficStats.getMobileTxBytes();
                System.out.println("Speed=" + (now - uptoNow)); // Prints value for current second
                uptoNow = now;
            }
        };
        uptoNow = TrafficStats.getMobileRxBytes() + TrafficStats.getMobileTxBytes();
        futureHandle = scheduler.scheduleAtFixedRate(meter, 1, 1, SECONDS);
    }

    public void stopMeter() {
        futureHandle.cancel(true);
    }
}

并像这样使用：

SpeedMeter meter = new SpeedMeter();
meter.startMeter();

虽然这段代码并不完美，但它会满足您的需要。

我正在尝试获取真实的流量统计数据。但是，当我一整天都在计算 `TrafficStats.getMobileTxBytes()` 时，它比我的数据包还多？

I'm trying to get а real traffic stats data. But, When i count `TrafficStats.getMobileTxBytes()` for whole day its more than my data pack?

android

android-studio

android-trafficstats