ListView添加FooterView再remove掉，会留下空白位置

ListView listView = new ListView(this);
View footerView = new View(this);

//添加footerView
LinearLayout footerParent = new LinearLayout(this);
footerParent.addView(footerView);

listView.addFooterView(footerParent);

//移除footerView
footerView.setVisibility(View.GONE);