如何在Android中检测上传/下载传输速率? [英] How to detect upload/download transfer rate in Android?

问题描述

我正在开发一个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.

I am working on an app which uploads a large amount of data. I want to determine the transfer rate of the upload, to show in a notification.

• 一篇帖子建议使用WifiInfo，不适用于移动数据.
• 另一篇帖子建议获取网络类型以估算速度.

• One post suggests using the WifiInfo which will not work for mobile data.
• Another post suggests getting the network type to estimate the speed.

我对这些帖子中的答案不满意，所以我再次询问.

I'm not satisfied with the answers in these posts, so I am asking again.

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 .

I've seen apps which display the upload transfer rate, as well as some custom ROMs like Resurrection Remix.

如何确定这些上传的传输速率?

How can I determine the transfer rate of these uploads?

推荐答案

使用

It is feasible to obtain the transferred traffic amount using android.net.TrafficStats. Here is an implementation of this idea which measures the up-stream and down-stream transfer rate. You can measure the rate of mobile network by passing TrafficSpeedMeasurer.TrafficType.MOBILE to the TrafficSpeedMeasurer constructor, otherwise using TrafficSpeedMeasurer.TrafficType.ALL will result in measuring general traffic (WiFi/Mobile). Also by setting SHOW_SPEED_IN_BITS = true in MainActivity you can change the unit of speed measuring to bits per second.

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);
        }
    }

}

.

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