安卓添加一个浮动的视图

View vPoint = LayoutInflater.from(this).inflate(R.layout.m3_i_point,
		null);
// 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(悬浮于顶部)
lp_bottom.gravity = Gravity.BOTTOM;
addContentView(vPoint, lp_bottom);