Android 之 ListView使用SimpleAdapter展示列表

SimpleAdapter是用的比较多的一种adapter，它的拓展性很好，可以自己定义布局，也可以设置一些图片等。

对于SimpleAdapter一般都需要自定义一个xml文件，是一个列表行的布局文件。

simpleitem.xml

<?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="match_parent"
    android:orientation="horizontal" >

    <TextView
        android:id="@+id/id"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:layout_weight="2" />

    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="left"
        android:layout_weight="10"/>

    <TextView
        android:id="@+id/age"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:layout_weight="3"/>

</LinearLayout>

SimpleAdapterDemo.java

package com.example.phonedemo;

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

import com.example.phonedemo.util.Utils;

import android.app.Activity;
import android.os.Bundle;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class SimpleAdapterDemo extends Activity {

	private ListView listView = null;
	private LinearLayout layout = null;
	private List<Map<String, Object>> list = null;
	private SimpleAdapter adapter = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		this.layout = new LinearLayout(this);
		this.layout.setOrientation(LinearLayout.VERTICAL);
		this.listView = new ListView(this);
		list = initList();
		adapter = new SimpleAdapter(this, list, R.layout.simpleitem,
				new String[] { "id", "name", "age" }, new int[] { R.id.id,
						R.id.name, R.id.age });
		this.listView.setAdapter(adapter);
		this.layout.addView(this.listView, Utils.match);
		super.addContentView(this.layout, Utils.match);
	}

	private List<Map<String, Object>> initList() {
		List<Map<String, Object>> temp = new ArrayList<Map<String, Object>>();
		Map<String, Object> map = null;
		for (int i = 0; i < 20; i++) {
			map = new HashMap<String, Object>();
			map.put("id", i);
			map.put("name", "张三" + i + "号");
			map.put("age", 28);
			map.put("email", "[email protected]");
			temp.add(map);
		}
		return temp;
	}
}