Question

我正在上载大量数据的应用程序。我想确定上传的传输速率，以显示在通知中。

一个post建议使用WifiInfo，这不适用于移动数据。
另一个post建议获取网络类型以估算速度。

我对这些帖子中的答案不满意，所以我再次询问。

我看过显示上传传输速率的应用程序以及一些自定义ROM，例如Resurrection Remix。

如何确定这些上传的传输速率？

Answer 1

使用android.net.TrafficStats获取转移的流量是可行的。这是该思想的一种实现，它测量上游和下游传输速率。您可以通过将TrafficSpeedMeasurer.TrafficType.MOBILE传递给TrafficSpeedMeasurer构造函数来测量移动网络的速率，否则使用TrafficSpeedMeasurer.TrafficType.ALL将导致测量一般流量（WiFi / Mobile）。同样，通过在SHOW_SPEED_IN_BITS = true中设置MainActivity，您可以将速度测量单位更改为每秒bit s。

MainActivity.java

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    private static final boolean SHOW_SPEED_IN_BITS = false;

    private TrafficSpeedMeasurer mTrafficSpeedMeasurer;
    private TextView mTextView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mTextView = findViewById(R.id.connection_class);

        mTrafficSpeedMeasurer = new TrafficSpeedMeasurer(TrafficSpeedMeasurer.TrafficType.ALL);
        mTrafficSpeedMeasurer.startMeasuring();
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        mTrafficSpeedMeasurer.stopMeasuring();
    }

    @Override
    protected void onPause() {
        super.onPause();
        mTrafficSpeedMeasurer.removeListener(mStreamSpeedListener);
    }

    @Override
    protected void onResume() {
        super.onResume();
        mTrafficSpeedMeasurer.registerListener(mStreamSpeedListener);
    }

    private ITrafficSpeedListener mStreamSpeedListener = new ITrafficSpeedListener() {

        @Override
        public void onTrafficSpeedMeasured(final double upStream, final double downStream) {
            runOnUiThread(new Runnable() {
                @Override
                public void run() {
                    String upStreamSpeed = Utils.parseSpeed(upStream, SHOW_SPEED_IN_BITS);
                    String downStreamSpeed = Utils.parseSpeed(downStream, SHOW_SPEED_IN_BITS);
                    mTextView.setText("Up Stream Speed: " + upStreamSpeed + "\n" + "Down Stream Speed: " + downStreamSpeed);
                }
            });
        }
    };

}

TrafficSpeedMeasurer.java

import android.net.TrafficStats;
import android.os.Handler;
import android.os.HandlerThread;
import android.os.Looper;
import android.os.Message;
import android.os.SystemClock;


public class TrafficSpeedMeasurer {

    private ITrafficSpeedListener mTrafficSpeedListener;
    private SamplingHandler mHandler;

    private TrafficType mTrafficType;
    private long mLastTimeReading;
    private long mPreviousUpStream = -1;
    private long mPreviousDownStream = -1;

    public TrafficSpeedMeasurer(TrafficType trafficType) {
        mTrafficType = trafficType;
        HandlerThread thread = new HandlerThread("ParseThread");
        thread.start();
        mHandler = new SamplingHandler(thread.getLooper());
    }

    public void registerListener(ITrafficSpeedListener iTrafficSpeedListener) {
        mTrafficSpeedListener = iTrafficSpeedListener;
    }

    public void removeListener(ITrafficSpeedListener iTrafficSpeedListener) {
        mTrafficSpeedListener = iTrafficSpeedListener;
    }

    public void startMeasuring() {
        mHandler.startSamplingThread();
        mLastTimeReading = SystemClock.elapsedRealtime();
    }

    public void stopMeasuring() {
        mHandler.stopSamplingThread();
        finalReadTrafficStats();
    }

    private void readTrafficStats() {
        long newBytesUpStream = (mTrafficType == TrafficType.MOBILE ? TrafficStats.getMobileTxBytes() : TrafficStats.getTotalTxBytes()) * 1024;
        long newBytesDownStream = (mTrafficType == TrafficType.MOBILE ? TrafficStats.getMobileRxBytes() : TrafficStats.getTotalRxBytes()) * 1024;

        long byteDiffUpStream = newBytesUpStream - mPreviousUpStream;
        long byteDiffDownStream = newBytesDownStream - mPreviousDownStream;

        synchronized (this) {
            long currentTime = SystemClock.elapsedRealtime();
            double bandwidthUpStream = 0;
            double bandwidthDownStream = 0;

            if (mPreviousUpStream >= 0) {
                bandwidthUpStream = (byteDiffUpStream) * 1.0 / (currentTime - mLastTimeReading);
            }
            if (mPreviousDownStream >= 0) {
                bandwidthDownStream = (byteDiffDownStream) * 1.0 / (currentTime - mLastTimeReading);
            }
            if (mTrafficSpeedListener != null) {
                mTrafficSpeedListener.onTrafficSpeedMeasured(bandwidthUpStream, bandwidthDownStream);
            }

            mLastTimeReading = currentTime;
        }

        mPreviousDownStream = newBytesDownStream;
        mPreviousUpStream = newBytesUpStream;
    }

    private void finalReadTrafficStats() {
        readTrafficStats();
        mPreviousUpStream = -1;
        mPreviousDownStream = -1;
    }

    private class SamplingHandler extends Handler {

        private static final long SAMPLE_TIME = 1000;
        private static final int MSG_START = 1;

        private SamplingHandler(Looper looper) {
            super(looper);
        }

        @Override
        public void handleMessage(Message msg) {
            switch (msg.what) {
                case MSG_START:
                    readTrafficStats();
                    sendEmptyMessageDelayed(MSG_START, SAMPLE_TIME);
                    break;
                default:
                    throw new IllegalArgumentException("Unknown what=" + msg.what);
            }
        }

        void startSamplingThread() {
            sendEmptyMessage(SamplingHandler.MSG_START);
        }

        void stopSamplingThread() {
            removeMessages(SamplingHandler.MSG_START);
        }

    }

    public enum TrafficType {
        MOBILE,
        ALL
    }

}

ITrafficSpeedListener.java

public interface ITrafficSpeedListener {

    void onTrafficSpeedMeasured(double upStream, double downStream);
}

Utils.java

import java.util.Locale;

public class Utils {

    private static final long B = 1;
    private static final long KB = B * 1024;
    private static final long MB = KB * 1024;
    private static final long GB = MB * 1024;

    public static String parseSpeed(double bytes, boolean inBits) {
        double value = inBits ? bytes * 8 : bytes;
        if (value < KB) {
            return String.format(Locale.getDefault(), "%.1f " + (inBits ? "b" : "B") + "/s", value);
        } else if (value < MB) {
            return String.format(Locale.getDefault(), "%.1f K" + (inBits ? "b" : "B") + "/s", value / KB);
        } else if (value < GB) {
            return String.format(Locale.getDefault(), "%.1f M" + (inBits ? "b" : "B") + "/s", value / MB);
        } else {
            return String.format(Locale.getDefault(), "%.2f G" + (inBits ? "b" : "B") + "/s", value / GB);
        }
    }

}

。

视觉结果

Answer 2

您要确定的是通过HTTP客户端上传的字节的传输速率。显然，这取决于您使用的HTTP客户端。

没有适用于Android上所有HTTP客户端的即用型解决方案。 Android SDK不提供任何方法来确定特定上载的传输速率。

幸运的是，您使用的是OKHttp，并且是一种相对简单的方法。您将必须实现自定义RequestBody，并观察请求进行过程中写入缓冲区的字节。

在OkHttp Github上执行此操作有一个“配方”： https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/Progress.java

您还可以参考此StackOverflow问题，该问题完全相同： Tracking progress of multipart file upload using OKHTTP

另一个在这里： OKHTTP 3 Tracking Multipart upload progress

Answer 3

我是在您的应用程序上下文中进行交谈，因为这样可以更轻松地捕获上传数据的实时速度。您不需要任何额外的库或sdk api。

您大概正在将数据分块上传到服务器。所以

a）您知道每个数据包的数据大小
b）您知道发送数据包之前/发送多个数据包之前的开始时间
c）您可以通过服务器响应知道xy数据包的结束时间，例如状态200

有了这些参数，您就可以计算上传速度

double uploadSpeed = packet.size / (endTime - startTime) //时间* 1000，以秒为单位

编辑：

由于您使用的是MultiPart中的OkHttp，因此可以监视上载的字节数。 Tracking progress of multipart file upload using OKHTTP。您可以将packet.size替换为当前上传的数量，而endTime的间隔为xy秒。

如何在Android中检测上传/下载传输速率？

3 个答案:

视觉结果