用 layoutInflater打气筒创建一个view对象

基于测试代码中，前面文章有：

1、SQL语句实现数据库的增删改查：http://blog.csdn.net/zhangli_/article/details/50117367

2、利用API来控制SQL数据库的增删改查：http://blog.csdn.net/zhangli_/article/details/50134413

新建一个layout ：list_layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="60dp"
android:gravity="center_vertical"
android:orientation="horizontal" >

<TextView
android:id="@+id/tv_id"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:text="id"
android:textColor="#ff0000"
android:textSize="20sp" />

<LinearLayout
android:layout_width="fill_parent"
android:layout_height="60dp"
android:gravity="center_vertical"
android:orientation="vertical" >

<TextView
android:id="@+id/tv_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dip"
android:text="姓名"
android:textColor="#000000"
android:textSize="20sp" />

<TextView
android:id="@+id/tv_phone"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="50dip"
android:text="电话"
android:textColor="#88000000"
android:textSize="20sp" />
</LinearLayout>

</LinearLayout>

MainActivity:

package com.zhangli.shujuku;

import java.util.List;
import com.zhangli.Dao.PersonDao;
import com.zhangli.db.Person;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class MainActivity extends Activity {
private List<Person> persons;
private ListView lv;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
PersonDao dao = new PersonDao(this);
persons = dao.findall();

lv = (ListView) findViewById(R.id.lv);

lv.setAdapter(new myAdapter());
}

private class myAdapter extends BaseAdapter {

// 控制LIstView里面总共有多少个条目
@Override
public int getCount() {
return persons.size();// 条目个数==集合的size
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return null;
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
// 得到某个位置对应的person对象
Person person = persons.get(position);
View view=View.inflate(MainActivity.this, R.layout.list_activity, null);
//一定要在view对象里面寻找孩子的id
TextView tv_id=(TextView) view.findViewById(R.id.tv_id);
tv_id.setText("id:"+person.getId());

TextView tv_name=(TextView) view.findViewById(R.id.tv_name);
tv_name.setText("姓名:"+person.getName());

TextView tv_number=(TextView) view.findViewById(R.id.tv_phone);
tv_number.setText("电话:"+person.getNumber());

return view;
}

}

}