public static void addNewTask(final Task ts) {
              new Thread() { 
                    //启动线程
                     public void run() { 
                    //调用doTask方法
                           mainService.doTask(ts); 
                     }
              }.start();
       }
       
          public void doTask(Task task) ｛
              if (task == null) 
                     return; 
              Map param = task.getTaskParam();
              ArrayList list = new ArrayList<Object>(); 
  //得到一个message对象
              Message message = handler.obtainMessage(); 
              //获取taskID用于判断执行哪个流程
              int taskid = task.getTaskID(); 
              switch (taskid) { 
              case Config.TASK_ONE: 
                     String test = "test"; 
                     message.obj = test; 
                     break; 
              }
              message.what = task.getTaskID(); 
  //假如到消息队列并发送
              handler.sendMessage(message); 
            }


 public Handler handler = new Handler() {
              @Override 
              public void handleMessage(Message msg) { 
                     super.handleMessage(msg); 
                     IActivity ac = null; 
                     String activityName = ""; 
                     switch (msg.what) { 
                     //根据消息队列的msg判断改传入哪个Activity
                     case Config.TASK_ONE: 
                           activityName = "AndroidTaskActivity"; 
                           break; 
                     }
                     ac = MainService.getActivityByName(activityName);
                     //刷新判断后的activity
                     ac.refresh(msg.what, msg.obj); 
              }
       };                  


public void refresh(Object... param) {
              //获取从MainService传过来的数据，第一个为TaskID，第二个通常为传过来的数据对象
              int flag = (Integer)param[0];
              switch(flag){ 
              case Config.TASK_ONE: 
                     String str=(String) param[1];
                     et.setText(str); 
                     break; 
              }


       }