用來檢查網絡和網速android小程序

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();

    // 設置監聽
    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 = "正在檢測..";
                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 = "訪問失敗";
            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;
}


}</pre>