如何将一个视图的顶部设置为另一个视图的底部

RelativeLayout layout = new RelativeLayout(context);

// 第一个视图
TextView topView = new TextView(context);
topView.setText("顶部视图");
RelativeLayout.LayoutParams topParams = new RelativeLayout.LayoutParams(
    RelativeLayout.LayoutParams.MATCH_PARENT,
    RelativeLayout.LayoutParams.WRAP_CONTENT
);
topParams.addRule(RelativeLayout.ALIGN_PARENT_TOP);
layout.addView(topView, topParams);

// 第二个视图
TextView bottomView = new TextView(context);
bottomView.setText("底部视图");
RelativeLayout.LayoutParams bottomParams = new RelativeLayout.LayoutParams(
    RelativeLayout.LayoutParams.MATCH_PARENT,
    RelativeLayout.LayoutParams.WRAP_CONTENT
);
bottomParams.addRule(RelativeLayout.BELOW, topView.getId());
layout.addView(bottomView, bottomParams);