onCreate()里面执行

    HandlerThread mHandlerThread = new HandlerThread("NetWork");
    mHandlerThread.start();
    myHandler = new MyHandler(mHandlerThread.getLooper());
    myHandler.postDelayed(new myChildThread(),100);

class MyHandler extends Handler {

    public MyHandler() {
    }
    public MyHandler(Looper L) {
        super(L);
    }
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        Bundle b = msg.getData();
        String content = b.getString("init");
        if (content.equals("finish")) {
            if (GetData.stockInfo != null && GetData.stockInfo.size() > 0)
            {
                myDataAdapter=new DataAdapter();
                mListView.setAdapter(myDataAdapter);
                setListViewHeightBasedOnChildren(mListView);
                myDataAdapter.notifyDataSetChanged();
            }
        }
    }
}

class myChildThread implements Runnable {

    @Override
    public void run() {
        GetData.initOpenCloseTime();
                }
        Timer timer = new Timer(false);
        TimerTask task = new TimerTask() {
            @Override
            public void run() {
                 {
                    GetData.getDataFromWeb(mcontext);
                    Message msg = new Message();
                    Bundle b = new Bundle();
                    b.putString("init", "finish");
                    msg.setData(b);
                    Stocker.this.myHandler.sendMessage(msg); 
                }
            }
        };
        java.util.Date time = new java.util.Date();
        timer.schedule(task, time, 5000);
    }
}

主要就是想实现不断通过网络取数据然后更新listview的功能，不是报NetworkOnMainThreadException，就是Only the original thread that created a view hierarchy can touch its views.
求大神帮我理理逻辑，急！