1:布局文件
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<span style="font-size:18px;"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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>
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<TextView
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android:id="@+id/tv_text_age"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:background="@drawable/choolse_bg"
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android:text="不限"
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android:paddingLeft="12dp"
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android:textColor="#9d72d2"
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android:layout_centerInParent="true"
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android:gravity="center_vertical"
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/>
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</RelativeLayout></span>
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package com.jackie.popupwindow;
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import java.util.ArrayList;
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import java.util.List;
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import android.app.Activity;
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import android.graphics.Color;
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import android.graphics.drawable.ColorDrawable;
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import android.os.Bundle;
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import android.view.LayoutInflater;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.view.ViewGroup;
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import android.view.ViewGroup.LayoutParams;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.BaseAdapter;
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import android.widget.ListView;
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import android.widget.PopupWindow;
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import android.widget.TextView;
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public class MainActivity extends Activity implements OnClickListener {
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private TextView tv_text_age;
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private PopupWindow pop;
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ListView listView = null;
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private List<String> datas;
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private SelectAgeAdapter mSelectAdapter;
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private LayoutInflater inflater;
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_main);
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initData();
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inflater = LayoutInflater.from(this);
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tv_text_age = (TextView) findViewById(R.id.tv_text_age);
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tv_text_age.setOnClickListener(this);
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}
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private void initData() {
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datas = new ArrayList<String>();
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for(int i = 0;
i < 50;
i++){
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datas.add("HelloWorld - " + i);
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}
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}
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@Override
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public void onClick(View v) {
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if(v.getId() == R.id.tv_text_age){
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if(pop == null)
{
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listView = new ListView(this);
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listView.setDividerHeight(1);
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listView.setBackgroundResource(R.drawable.kge_feek_bg);
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listView.setCacheColorHint(0x00000000);
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mSelectAdapter = new SelectAgeAdapter();
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pop = new PopupWindow(listView, tv_text_age.getWidth(), LayoutParams.WRAP_CONTENT, true);
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}
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listView.setAdapter(mSelectAdapter);
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pop.setBackgroundDrawable(new ColorDrawable(Color.RED));
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pop.showAsDropDown(tv_text_age, 0, 0);
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listView.setOnItemClickListener(new OnItemClickListener() {
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@Override
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public void onItemClick(AdapterView<?> parent, View view,
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int position, long id) {
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tv_text_age.setText(datas.get(position));
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dismissPopWindow();
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}
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});
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}
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}
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public void dismissPopWindow() {
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if(pop != null && pop.isShowing()){
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pop.dismiss();
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}
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}
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class SelectAgeAdapter extends BaseAdapter {
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@Override
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public int getCount() {
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return datas != null&&datas.size() > 0
? datas.size() : 0;
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}
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@Override
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public Object getItem(int position) {
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return datas.get(position);
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}
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@Override
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public long getItemId(int position) {
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return position;
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}
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@Override
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public View getView(int position, View convertView, ViewGroup parent) {
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ViewHolder holder;
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if (convertView ==
null) {
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holder = new ViewHolder();
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convertView = inflater.inflate(R.layout.item, null);
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holder.tv_name = (TextView) convertView.findViewById(R.id.tv_name);
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convertView.setTag(holder);
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} else {
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holder = (ViewHolder) convertView.getTag();
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}
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holder.tv_name.setText(datas.get(position));
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return convertView;
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}
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}
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class ViewHolder {
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TextView tv_name;
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}
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}
Android PopupWindow嵌套ListView（模仿分类下拉菜单效果）
原文：http://blog.csdn.net/shineflowers/article/details/44178357
