首先了解一下LayouInflater类：将一个layout xml文件实例化为相应的View 对象。他永远不会直接使用，而是使用 getLayoutInflater() 或者 getSystemService(String) 来获得标准的LayoutInflater实例，这个实例已经将context连接起来，为正在运行的设备配置正确。比如：[java] view plaincopyLayoutInflater inflater = (LayoutInflater)context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);  public View inflate (int resource, ViewGroup root)Since: API Level 1Inflate a new view hierarchy from the specified xml resource. Throws InflateException if there is an error.Parametersresource     ID for an XML layout resource to load (e.g., R.layout.main_page) root     Optional view to be the parent of the generated hierarchy.ReturnsThe root View of the inflated hierarchy. If root was supplied, this is the root View; otherwise it is the root of the inflated XML file.假如有一个这样的xml文件(guess_button.xml) 放入到一个buttonTableLayout：[html] view plaincopy
       
             
        
        (guess_button.xml)[html] view plaincopy
                  
                 
                   
                 
                   
                 
           
       (main.xml中定义的需要被扩充的buttonTableLayout,假设其在程序中的引用也叫buttonTableLayout, 即buttonTableLayout =(TableLayout)  findViewById(R.id.buttonLayout);)现在我们将其第一行进行扩充：[java] view plaincopyLayoutInflater inflater = (LayoutInflater)context.getSystemService (Context.LAYOUT_INFLATER_SERVICE);  Button newGuessButton =(Button)inflater.inflater(R.layout.guess_button,null); //获得按钮  newGuessButton.setText("abc"); //设置按钮文本  newGuessButton.setOnClickListener(guessButtonListener); //设置Listener  (TableRow) buttonTableLayout.getChildAt(1);  //将newGuessButton加到table第一行  OK 整个流程就完成了