Android自定义组件ListPopWindow

2.看一些item的bean

这里我就声明了title和图片的id

package com.hankkin.library;


public class PopBean {
 private String title;
 private int icon_res;

 public String getTitle() {
  return title;
 }

 public void setTitle(String title) {
  this.title = title;
 }

 public int getIcon_res() {
  return icon_res;
 }

 public void setIcon_res(int icon_res) {
  this.icon_res = icon_res;
 }

 public PopBean(String title, int icon_res) {
  this.title = title;
  this.icon_res = icon_res;
 }
}

3.自定义adapter适配器

这里面可能要注意的就是item的背景设置，有的是上半部分圆角、有的是下半部分圆角，特殊处理一下

@Override
 public View getView(int i, View view, ViewGroup viewGroup) {
  ViewHolder holder;
  if (view == null) {
   view = inflater.inflate(R.layout.listview_popwindow_item, null);
   holder = new ViewHolder();
   holder.tv_name = (TextView) view.findViewById(R.id.tv_title);
   holder.v_line = (View) view.findViewById(R.id.v_line);
   view.setTag(holder);
  } else {
   holder = (ViewHolder) view.getTag();
  }

  holder.tv_name.setText(dataList.get(i).getTitle());


  if (dataList.size() - 1 == i) {
   holder.v_line.setVisibility(View.INVISIBLE);
   holder.tv_name.setBackground(context.getResources().getDrawable(R.drawable.selector_bottom_half));
  } else {
   holder.v_line.setVisibility(View.VISIBLE);
   holder.tv_name.setBackground(context.getResources().getDrawable(R.drawable.list_gray_item));
  }
  return view;
 }

最后看一下调用

Activity需要实现item接口（OnPopItemClickListener）和底部按钮接口（OnBottomTextviewClickListener）

public void show(View view){
  List<PopBean> pops = new ArrayList<>();
  for (int i=0;i<5;i++){
   PopBean pop = new PopBean("item"+i,0);
   pops.add(pop);
  }
  popWindow = new ListPopWindow(MainActivity.this,this,this,rl,pops,"cancel","title");
  popWindow.showAtLocation(rl, Gravity.CENTER| Gravity.BOTTOM,0,0);
 }
								 
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