<?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">
<TextView
android:id="@+id/info"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="25px"
android:gravity="center_horizontal"/>
<ListView
android:id="@+id/datalist"
android:layout_width="fill_parent"
android:layout_height="wrap_content"/>
</LinearLayout>
data_list.xml文件
<?xml version="1.0" encoding="utf-8"?>
<TableLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TableRow>
<ImageView
android:id="@+id/icon"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:src="@drawable/file_icon"/>
<TextView
android:id="@+id/_id"
android:textSize="15px"
android:gravity="center_vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/name"
android:textSize="15px"
android:gravity="center_vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</TableRow>
</TableLayout>package org.listview.cn;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.lxh.demo.R;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
public class MyListViewDemo extends Activity {
private String data[][] = { { "001", "C++" },
{ "002", "java" }, { "003", "SQL" },
{ "004", "LINUX" }, { "005", "汇编原理" },
{ "006", "计算机网络原理" }, { "007", "计算机组成原理m" },
{ "008", "数据结构" }, { "009", "操作系统" },
{ "010", "电子技术" } }; // 准备出若干个信息而这些信息以后将通过程序加入到内嵌的线性布局文件之中
private ListView datalist = null; // 定义ListView组件
private List<Map<String, String>> list = new ArrayList<Map<String, String>>(); // 定义显示的内容包装
private SimpleAdapter simpleAdapter = null; // 进行数据的转换操作
private TextView info = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main);
this.datalist = (ListView) super.findViewById(R.id.datalist); // 取得组件
this.info = (TextView) super.findViewById(R.id.info); // 取得组件
for (int x = 0; x < this.data.length; x++) {
Map<String, String> map = new HashMap<String, String>(); // 定义Map集合，保存每一行数据
map.put("_id", this.data[x][0]); // 与data_list.xml中的TextView组加匹配
map.put("name", this.data[x][1]); // 与data_list.xml中的TextView组加匹配
this.list.add(map); // 保存了所有的数据行
}
this.simpleAdapter = new SimpleAdapter(this, this.list,
R.layout.data_list, new String[] { "_id", "name" } // Map中的key的名称
, new int[] { R.id._id, R.id.name }); // 是data_list.xml中定义的组件的资源ID
this.datalist.setAdapter(this.simpleAdapter);
this.datalist.setOnItemClickListener(new OnItemClickListenerImpl()); // 单击选项
}
private class OnItemClickListenerImpl implements OnItemClickListener {
@SuppressWarnings("unchecked")
@Override
public void onItemClick(AdapterView<?> parent, View view, int position,
long id) {
Map<String, String> map = (Map<String, String>) MyListViewDemo.this.simpleAdapter
.getItem(position);
String _id = map.get("_id");
String name = map.get("name");
MyListViewDemo.this.info.setText("选中的数据项ID是：" + _id + "，名称是："
+ name);
}
}
}
5