推遲 sleep()

 thread = new Thread(){ 
            @Override
            public void run(){ 
                try{
                    doStep1();
                    doStep2();
                    doStep3();
                    Thread.sleep(3000);
                    Message msg = new Message();
                    msg.what = finish;
                    uiMessageHandler.sendMessage(msg);
                }catch (Exception e){
                    e.printStackTrace();
                }finally{
                }
            }
        };
        //開始執行執行緒
        thread.start();