如何动态添加自定义Button
不用在xml里面的配置
好比如下

public class AddButton extends Activity { 
   /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        //setContentView(R.layout.main);
        final LinearLayout layout2 = new LinearLayout(this); 
       layout2.setOrientation(LinearLayout.VERTICAL);
        Button bt1 = new Button(this);
        setContentView(layout2);
        Button bt2 = new Button(this);
        bt1.setText("按钮1"); 
       bt2.setText("按钮2");
       layout2.addView(bt1);
       layout2.addView(bt2);
       setContentView(layout2);
                    }}

但是如何添加自定义的button了？？
[解决办法]
自定义button无非就是设置背景，设置大小等.

ViewGroup.LayoutParams params = new ViewGroup.LayoutParams(
                            ViewGroup.LayoutParams.WRAP_CONTENT,
                            ViewGroup.LayoutParams.WRAP_CONTENT);
        bt1.setBackgroundResource(R.drawable.xx);
        bt1.setGravity(Gravity.CENTER);
        layout2.addView(root, params);

楼主把第一句setContentView(layout2);删了