Android： PopupWindow 上显示 ListView 并相应 Demo

package com.mas; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.view.LayoutInflater; import android.view.MotionEvent; import android.view.View; import android.view.View.OnClickListener; import android.view.View.OnTouchListener; import android.view.ViewGroup.LayoutParams; import android.widget.AdapterView; import android.widget.Button; import android.widget.EditText; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.SimpleAdapter; import android.widget.AdapterView.OnItemClickListener; import android.widget.AdapterView.OnItemSelectedListener; import com.mas.R; public class popupTest extends Activity { Button btnPopupWindow; private PopupWindow pop; ListView listView,listView1; LayoutInflater inflater; SimpleAdapter adapter; EditText et; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); et = (EditText) findViewById(R.id.et); btnPopupWindow=(Button)this.findViewById(R.id.Button01); btnPopupWindow.setOnClickListener(new ClickEvent()); } //统一处理按键事件 class ClickEvent implements OnClickListener{ @Override public void onClick(View v) { // TODO Auto-generated method stub if(v==btnPopupWindow) { LayoutInflater inflater = (LayoutInflater) popupTest.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); listView = (ListView) inflater.inflate(R.layout.listview, null); if(pop == null){ System.out.println("...................."); adapter = new SimpleAdapter(popupTest.this, getData(), R.layout.item, new String[]{"info"}, new int[]{R.id.tx}); listView.setFocusable(true); listView.setItemsCanFocus(true); listView.setAdapter(adapter); listView.setOnItemClickListener(new OnItemClickListener(){ @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { // TODO Auto-generated method stub et.setText(getData().get(arg2).get("info").toString()); pop.dismiss(); pop = null; } }); pop = new PopupWindow(listView, 200, LayoutParams.WRAP_CONTENT); pop.setTouchable(true); pop.setFocusable(true); pop.showAsDropDown(btnPopupWindow, 188, 188); }else{ pop.dismiss(); pop = null; } } } private List<Map<String, Object>> getData() { List<Map<String, Object>> list = new ArrayList<Map<String, Object>>(); Map<String, Object> map = new HashMap<String, Object>(); map.put("info", "google 1"); list.add(map); map = new HashMap<String, Object>(); map.put("info", "google 2"); list.add(map); map = new HashMap<String, Object>(); map.put("info", "google 3"); list.add(map); return list; } } }