android 测试网速

原理: 到网上找个可以下载的apk 的URL,记住apk不要过大一般1M足够了.然后通过记录下载这个apk的时间和大小,算出当前网速.当然一个URL并不是很准确,要求精确的可以多下载几个URL求平均值.package com.panodic.settings.net;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.net.HttpURLConnection;import java.net.MalformedURLException;import java.net.URL;import java.net.URLConnection;import com.panodic.settings.util.LogUtil;import com.panodic.settings.util.NetUtil;import com.panodic.settings.util.Util;import com.panodic.settings.view.PatchItem;import android.os.Bundle;import android.os.Handler;import android.os.Message;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.View.OnClickListener;import android.view.Window;import android.widget.Button;import android.widget.ProgressBar;import android.widget.TextView;import android.widget.Toast;import com.panodic.settings.R;public class MesureSpeed extends Activity implements OnClickListener {private static final int LOADING = 0x111;private static final int STOP = 0x112;private ProgressBar mBar;private int mProgressState;private TextView mSpeed;private Button mMeasureSpeed;private PatchItem mBack;private float mSpeedContent;private String mAddr = "http://cdn.market.hiapk.com/data/upload/2012/12_09/22/cn.lgx.phoneexpert_221804.apk";private String mAddr2 = "http://gdown.baidu.com/data/wisegame/6f9153d4a8d1f7d8/QQ.apk";private String mAddr3 = "http://gdown.baidu.com/data/wisegame/baidusearch_Android_10189_1399k.apk";private Handler mHandler = new Handler(Util.sTaskRunner.getLooper());private int testCount = 0;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);requestWindowFeature(Window.FEATURE_NO_TITLE);setContentView(R.layout.activity_mesure_speed);mSpeed = (TextView) findViewById(R.id.speed_content);mMeasureSpeed = (Button) findViewById(R.id.mesure_speed);mBack = (PatchItem) findViewById(R.id.patch_settings_net_speed);mBar = (ProgressBar) findViewById(R.id.bar);mMeasureSpeed.setOnClickListener(this);mBack.setOnClickListener(this);testCount = 0;}@Overridepublic void onClick(View v) {if (mBack.isMyChild(v)) {Util.finish(this);} else if (v == mMeasureSpeed) {mMeasureSpeed.setEnabled(false);mBar.setVisibility(View.VISIBLE);mProgressState = 0;testCount = 0;mBar.setProgress(mProgressState);mHandler.removeCallbacks(null);mHandler.postDelayed(new Runnable() {@Overridepublic void run() {measureSpeed(mAddr);}}, 0);}}private Handler mProgressHandler = new Handler() {@Overridepublic void handleMessage(Message msg) {switch (msg.what) {case LOADING:mBar.setProgress(mProgressState);break;case STOP:mBar.setVisibility(View.GONE);setSpeed();mMeasureSpeed.setEnabled(true);break;default:break;}}};private void setSpeed() {if (mSpeedContent >= 1024) {mSpeedContent = (float) ((mSpeedContent) / (1024 + 0.0));mSpeedContent = (float) (((int) (mSpeedContent * 10) % 10 + 0.0) / 10 + (int) mSpeedContent);mSpeed.setText(mSpeedContent + getString(R.string.m));} else {mSpeed.setText((int) mSpeedContent + getString(R.string.kb));}}private void measureSpeed(String httpUrl) {if (!NetUtil.isWifiConnected(this) && !NetUtil.isWireConnected(this)) {Toast.makeText(this, getString(R.string.no_net), Toast.LENGTH_SHORT).show();mProgressHandler.sendEmptyMessage(STOP);return;}int fileLen = 0;long startTime = 0;long endTime = 0;final String fileName = "tmp.apk";HttpURLConnection conn = null;InputStream is = null;FileOutputStream fos = null;File tmpFile = new File("/sdcard/temp");if (!tmpFile.exists()) {tmpFile.mkdir();}final File file = new File("/sdcard/temp/" + fileName);try {URL url = new URL(httpUrl);try {conn = (HttpURLConnection) url.openConnection();LogUtil.d("lening");fileLen = conn.getContentLength();LogUtil.d("len=" + fileLen);if (fileLen <= 0) {mSpeedContent = 0;mProgressHandler.sendEmptyMessage(STOP);Toast.makeText(this, getString(R.string.conn_fail),Toast.LENGTH_SHORT).show();return;}startTime = System.currentTimeMillis();is = conn.getInputStream();fos = new FileOutputStream(file);byte[] buf = new byte[256];conn.connect();if (conn.getResponseCode() >= 400) {Toast.makeText(this, getString(R.string.no_time),Toast.LENGTH_SHORT).show();mProgressHandler.sendEmptyMessage(STOP);return;} else {while (true) {if (is != null) {int numRead = is.read(buf);if (numRead <= 0) {break;} else {fos.write(buf, 0, numRead);}mProgressState += (int) (((numRead + 0.0) / (fileLen + 0.0)) * 1000000);mProgressHandler.sendEmptyMessage(LOADING);// LogUtil.d("numRead=" + numRead + "  fileLen="// + fileLen);} else {break;}}}endTime = System.currentTimeMillis();} catch (IOException e) {e.printStackTrace();Toast.makeText(this, getString(R.string.no_permission),Toast.LENGTH_SHORT).show();} finally {if (conn != null) {conn.disconnect();}try {if (fos != null) {fos.close();}if (is != null) {is.close();}} catch (IOException e1) {e1.printStackTrace();}}} catch (MalformedURLException e) {e.printStackTrace();}mSpeedContent = fileLen / (endTime - startTime);mProgressHandler.sendEmptyMessage(STOP);}}