添加浮动的view

// 布局
FrameLayout.LayoutParams lp_Bottom = new FrameLayout.LayoutParams(
				FrameLayout.LayoutParams.MATCH_PARENT,
				FrameLayout.LayoutParams.WRAP_CONTENT);

// 设置广告出现的位置(悬浮于底部)
lp_Bottom.gravity = Gravity.BOTTOM;

fatherView.addView(childView, lp_Bottom)