DisplayMetrics dm = new DisplayMetrics();
 getWindowManager().getDefaultDisplay().getMetrics(dm);
 int width = dm.widthPixels;
 int height = dm.heightPixels;

 RelativeLayout layout = new RelativeLayout(this); 

 Button Btn[] = new Button[16];
 int j = -1;
 for (int i=0; i<=15; i++) {  
  Btn[i]=new Button(this);
  Btn[i].setId(2000+i);
  Btn[i].setText("按钮"+i); 
  RelativeLayout.LayoutParams btParams = new RelativeLayout.LayoutParams ((width-50)/4,40);

 if (i%4 == 0) {
   j++;
  }
  btParams.leftMargin = 10+ ((width-50)/4+10)*(i%4); //横坐标定位  
  btParams.topMargin = 20 + 55*j; //纵坐标定位  
  layout.addView(Btn[i],btParams); //将按钮放入layout组件
 }
  this.setContentView(layout);

for (int k = 0; k <= Btn.length-1; k++) {
 //这里不需要findId，因为创建的时候已经确定哪个按钮对应哪个Id
 Btn[k].setTag(k);    //为按钮设置一个标记，来确认是按下了哪一个按钮

 Btn[k].setOnClickListener(new Button.OnClickListener() {
 @Override
  public void onClick(View v) {
   int i = (Integer) v.getTag();

   Intent intent = new Intent();
   intent.setClass(Work_01.this, Work_02.class);
   Bundle bundle = new Bundle();
   bundle.putInt("count", i);
   intent.putExtras(bundle);
   startActivity(intent);
   Work_01.this.finish();     
  }
  });
 }