android——ListView功能的實現(使用simpleAdapter)

1、SimpleAdapterActivity

package com.njupt.listview;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.SimpleAdapter;import android.widget.TextView;public class SimpleAdapterActivity1 extends Activity {private ListView personLV;private List<Person> persons;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.main);    System.out.println("這時simpleAdapertActivity1");personLV = (ListView) findViewById(R.id.personLV);PersonDao dao = new PersonDao(this);persons = dao.queryAll(); List< Map<String, Object>> data = new ArrayList<Map<String,Object>>();for(Person p : persons){Map<String,Object> map = new HashMap<String, Object>();map.put("id", p.getId());map.put("name", p.getName());map.put("balance", p.getBalance());data.add(map);}personLV.setAdapter(new SimpleAdapter(getApplicationContext(),data,R.layout.item,new String[]{"id","name","balance"},new int[]{R.id.idTV,R.id.nameTV,R.id.balanceTV}));}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}