listview布局操作----将item绑定到activity中

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>

<LinearLayout
android:orientation="horizontal"
android:layout_width="fill_parent"
android:layout_height="wrap_content">

<TextView
android:layout_width="120dp"
android:layout_height="wrap_content"
android:textSize="25sp"
android:text="@string/name"
/>

<TextView
android:layout_width="150dp"
android:layout_height="wrap_content"
android:textSize="25sp"
android:text="@string/phonenum"
/>

<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="25sp"
android:text="@string/amount"
/>
</LinearLayout>

<ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/listView"
/>
</LinearLayout>

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

<TextView
android:layout_width="80dp"
android:textSize="25sp"
android:layout_height="wrap_content"
android:id="@+id/name"
/>

<TextView
android:layout_width="200dp"
android:textSize="25sp"
android:layout_height="wrap_content"
android:id="@+id/phonenum"
/>

<TextView
android:layout_width="fill_parent"
android:textSize="25sp"
android:layout_height="wrap_content"
android:id="@+id/amount"
/>
</LinearLayout>

package com.example.database;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import com.example.databaseService.contacts;
import com.example.databaseService.dataOperation;

import android.support.v7.app.ActionBarActivity;
import android.util.Log;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.database.Cursor;
import android.os.Bundle;

public class MainActivity extends ActionBarActivity {

ListView listview;
dataOperation Op;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
copyDataBaseToPhone();
Op=new dataOperation(this.getApplicationContext());
listview=(ListView)this.findViewById(R.id.listView);
show();

}
private void copyDataBaseToPhone() {
DataBaseUtil util = new DataBaseUtil(this);
// 判断数据库是否存在
boolean dbExist = util.checkDataBase();

if (dbExist) {
Log.i("tag", "The database is exist.");
} else {// 不存在就把raw里的数据库写入手机
try {
util.copyDataBase();
} catch (Exception e) {
Log.e("mytag","Error copying database");
}
}
}  因为apk文件不带数据库.db文件，因此必须在raw目录下放入数据库文件，在程序启动时将该数据文件放复制到程序对于的目录下
private void show2()
{
Cursor cursor=Op.getcursorScrollData(0, 20);
//SimpleCursorAdapter adapter = new SimpleCursorAdapter(this, R.layout.item, cursor,  new String[]{"name","phonenum","amount"},
//	new int[]{R.id.name,R.id.phonenum,R.id.amount},0);  这个方法google已经废弃了，新给的方法多了一个flag ，没搞清这个flag标志，由于google网站目前打不开，无法查看API文档，后续再研究
// listview.setAdapter(adapter);

}
private void show()
{

List<contacts> cts= Op.getScrollData(0, 16);
Log.e("mytag","hello.hello22222\n");
List<HashMap<String,Object>> data= new ArrayList<HashMap<String,Object>>();
for(contacts ct : cts)
{

HashMap<String,Object> item = new HashMap<String,Object>();
item.put("name", ct.getName());
item.put("phonenum",ct.getphonenum());
item.put("amount", ct.getAmount());
data.add(item);
}

SimpleAdapter adapter = new SimpleAdapter(this, data, R.layout.item, new String[]{"name","phonenum","amount"},
new int[]{R.id.name,R.id.phonenum,R.id.amount});
listview.setAdapter(adapter);
}
}