Android编程之代码创建布局实例分析

private void initView() {
  // 获取xml的RelativeLayout
  layout = (RelativeLayout) findViewById(R.id.liner);
  for (int i = 0; i < 5; i++) {
   RelativeLayout.LayoutParams relativeParams = new RelativeLayout.LayoutParams(
     ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
   // 每行都有一个linearlayout
   LinearLayout lLayout = new LinearLayout(mContext);
   lLayout.setId(i + 10);
   lLayout.setOrientation(LinearLayout.HORIZONTAL);
   LinearLayout.LayoutParams lLayoutlayoutParams = new LinearLayout.LayoutParams(
     ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT);
   lLayout.setLayoutParams(lLayoutlayoutParams);
   TextView tv = new TextView(mContext);
   tv.setId(i);
   tv.setText("这是第" + i + "个文本框");
   tv.setTextColor(Color.BLUE);
   TextView tv_num = new TextView(mContext);
   tv_num.setId(i + 20);
   tv_num.setText(i + "台");
   tv_num.setTextColor(Color.RED);
   // 为TextView添加长高设置
   LinearLayout.LayoutParams layoutParams_txt = new LinearLayout.LayoutParams(
     ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
   tv.setLayoutParams(layoutParams_txt);
   tv_num.setLayoutParams(layoutParams_txt);
   // 添加到每行的linearlayout中
   lLayout.addView(tv);
   lLayout.addView(tv_num);
   // 每个linearlayout都在前一个的下面，第一个在顶,不处理
   if (i > 0) {
    relativeParams.addRule(RelativeLayout.BELOW, i + 10 - 1);
   }
   // 把每个linearlayout加到relativelayout中
   layout.addView(lLayout, relativeParams);
  }
}