用来检查网络和网速android小程序，android小程序,import java.

用来检查网络和网速android小程序，android小程序,import java.

import java.util.HashMap;import java.util.Iterator;import java.util.Map;import java.util.Map.Entry;import org.jsoup.Jsoup;import org.jsoup.nodes.Document;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.widget.Button;import android.widget.TextView;public class MainActivity extends Activity {    private MyHandler handler;    private Map<String, String> urlMap;    private Map<String, Integer> idMap;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        // final Map<String, String> urlMap = new HashMap<String, String>();        urlMap = new HashMap<String, String>();        urlMap.put("tv_q", "http://xw.qq.com/");        urlMap.put("tv_taobao", "http://m.taobao.com/");        urlMap.put("tv_baidu", "http://m.baidu.com/");        urlMap.put("tv_sina", "http://sina.cn/");        urlMap.put("tv_google", "http://www.google.com.hk/");        urlMap.put("tv_apple", "http://www.apple.com/");        idMap = new HashMap<String, Integer>();        idMap.put("tv_q", R.id.tv_q);        idMap.put("tv_taobao", R.id.tv_taobao);        idMap.put("tv_baidu", R.id.tv_baidu);        idMap.put("tv_sina", R.id.tv_sina);        idMap.put("tv_google", R.id.tv_google);        idMap.put("tv_apple", R.id.tv_apple);        Button button = (Button) findViewById(R.id.button1);        handler = new MyHandler();        // 设置监听        button.setOnClickListener(new Button.OnClickListener() {            @Override            public void onClick(View v) {                // TODO Auto-generated method stub                Iterator<Entry<String, String>> it = urlMap.entrySet()                        .iterator();                while (it.hasNext()) {                    String speed = "正在检测..";                    Entry<String, String> e = it.next();                    String id = e.getKey();                    String url = e.getValue();                    TextView tv = (TextView) MainActivity.this                            .findViewById(idMap.get(id));                    tv.setText(speed);                }                new MyThread().start();            }        });    }    class MyHandler extends Handler {        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            TextView tv = (TextView) findViewById(msg.what);            tv.setText(msg.getData().getString("speed"));        }    }    class MyThread extends Thread {        @Override        public void run() {            Iterator<Entry<String, String>> it = urlMap.entrySet().iterator();            while (it.hasNext()) {                String speed = "访问失败";                Entry<String, String> e = it.next();                String id = e.getKey();                String url = e.getValue();                long time = 0;                String result = "";                try {                    long start = System.currentTimeMillis();                    Document doc = Jsoup.connect(url).get();                    long end = System.currentTimeMillis();                    time = end - start;                    result = doc.body().html();                } catch (Exception ex) {                    ex.printStackTrace();                }                if (result.length() > 0) {                    long len = result.getBytes().length;                    speed = speed(time, len);                }                Message message = new Message();                Bundle bundle = new Bundle();                bundle.putString("speed", speed);                message.setData(bundle);                message.what = idMap.get(id);                handler.sendMessage(message);            }        }    }    @Override    public boolean onCreateOptionsMenu(Menu menu) {        getMenuInflater().inflate(R.menu.main, menu);        return true;    }    private String speed(long time, long len) {        String speed = "";        if (time > 0) {            long s = len * 1000 / time; // B/ms            speed = s + "B/s";            if (s > 1024) {                s = s / 1024;                speed = s + "KB/s";            }            if (s > 1024) {                s = s / 1024;                speed = s + "MB/s";            }            if (s > 1024) {                s = s / 1024;                speed = s + "GB/s";            }            String size = len + "B";            if (len > 1024) {                len = len / 1024;                size = len + "KB";            }            if (len > 1024) {                len = len / 1024;                size = len + "MB";            }            String t = time + "ms";            if (time > 1000) {                time = time / 1000;                t = time + "sec";                if (time > 60) {                    time = time / 60;                    t = time + "min";                }            }            speed = speed + "(" + size + ", " + t + ")";        }        return speed;    }}