public class InfoLoadPresenterImpl implements InfoLoadPresenter {

    private InfoLoadView ilv;
    private Handler handler;

    @SuppressLint("HandlerLeak")  
    @Override
    public void infoLoad() {
        ilv.infoLoadStart();

        handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                switch (msg.what)
                {
                    case 1:
                        ilv.infoLoadSuccess((Customer) msg.obj);
                        break;
                }

            }
        };

        new Thread(new Runnable() {
            @Override
            public void run() {
                String str;
                try {
                  ... ...
                } catch (Exception e) {
                    e.printStackTrace();
                }

                Message message = new Message();

                Gson gson = App.getGson();
                Customer customer = gson.fromJson(body.toString(),Customer.class);

                message.what = 1;
                message.obj = customer;

                handler.sendMessage(message);

            }
        }).start();

    }

}

//需要理解 代碼區 靜態變量區 堆區 棧區 和 java引用才能理解的代碼
 

Java 需要註意的寫法