Handler and Thread

 

package gt.gt;

import gt.gt.util.FetchData;
import gt.gt.util.PreferencesUtil;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.widget.TextView;

public class ShowInfo extends Activity implements Runnable {

 private static final String TAG = "ShowInfo";
 TextView info;
 TextView title;
 private ProgressDialog pd;
 public String info_datas;
 public boolean is_valid = false;
 public int _id = 0;
 public String _name = "";
 public int _position;
 public int _ref = 0;

 @Override
 public void run() {
  switch (_id) {
  case PreferencesUtil.CPU_INFO:
   info_datas = FetchData.fetch_cpu_info();
   break;
  case PreferencesUtil.DISK_INFO:
   info_datas = FetchData.fetch_disk_info();
   break;
  case PreferencesUtil.NET_STATUS:
   info_datas = FetchData.fetch_netstat_info();
   break;
  case PreferencesUtil.VER_INFO:
   info_datas = FetchData.fetch_version_info();
   break;
  case PreferencesUtil.DMESG_INFO:
   info_datas = FetchData.fetch_dmesg_info();
   break;
  case PreferencesUtil.RunningProcesses:
   info_datas = FetchData.fetch_process_info();
   break;
  case PreferencesUtil.NET_CONFIG:
   info_datas = FetchData.fetch_netcfg_info();
   break;
  case PreferencesUtil.MOUNT_INFO:
   info_datas = FetchData.fetch_mount_info();
   break;
  case PreferencesUtil.TEL_STATUS:
   info_datas = FetchData.fetch_tel_status(this);
   break;
  case PreferencesUtil.MEM_INFO:
   info_datas = FetchData.getMemoryInfo(this);
   break;
  case PreferencesUtil.SystemProperty:
   info_datas = FetchData.getSystemProperty();
   break;
  case PreferencesUtil.DisplayMetrics:
   info_datas = FetchData.getDisplayMetrics(this);
   break;
  case PreferencesUtil.RunningService:
   info_datas = FetchData.getRunningServicesInfo(this);
   break;
  case PreferencesUtil.RunningTasks:
   info_datas = FetchData.getRunningTasksInfo(this);
   break;
  }

  handler.sendEmptyMessage(0);

 }

 private Handler handler=new Handler(){
  public void handleMessage(Message msg)
  {
  pd.dismiss();
  info.setText(info_datas);
   
  }
 };
 
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.showinfo);
  revParams();
  info = (TextView) findViewById(R.id.info);
  title = (TextView) findViewById(R.id.title);
  setTitle("eoeInfosAssistant" + _name);
  title.setText(_name);
  load_data();

 }

 private void load_data() {
  pd = ProgressDialog.show(this, "please wait a moment",
    "fetch info datas...", true, false);
  Thread thread = new Thread(this);
  thread.start();
 }

 private void revParams() {
  Intent startingIntent = getIntent();
  if (startingIntent != null) {
   Bundle infod = startingIntent.getBundleExtra("android.info");
   if (infod == null) {
    is_valid = false;
   }
   else
   {_id=infod.getInt("id");
   _name=infod.getString("name");
   _position=infod.getInt("position");
   is_valid=true;
   }
  }
  else {
   is_valid=false;
  }
       Log.i(TAG,_name+"  "+_id);
 }

}