FrameLayout frameLayout = new FrameLayout(this);
LinearLayout linearLayout1= new LinearLayout(this);
LinearLayout linearLayout2= new LinearLayout(this);
FrameLayout.LayoutParams params = new FrameLayout.LayoutParams(
LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
params.gravity = Gravity.CENTER_VERTICAL;
frameLayout.addView(linearLayout1, params);
linearLayout1 の下に linearLayout2 を追加する方法