常用数据适配器 SimpleAdapter

来源：互联网发布：英雄美工钢笔9076 编辑：程序博客网时间：2024/06/10 00:18

这里写图片描述

MainActivity.java

package com.example.simpleadapter;import java.io.ObjectOutputStream.PutField;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.support.v7.app.ActionBarActivity;import android.os.Bundle;import android.view.Menu;import android.view.MenuItem;import android.widget.ListView;import android.widget.SimpleAdapter;public class MainActivity extends ActionBarActivity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ListView lv = (ListView)findViewById(R.id.lv);        List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();        Map<String, Object> map1 = new HashMap<String, Object>();        map1.put("name", "第一关");        map1.put("icon", R.drawable.ic_menu_home);        Map<String, Object> map2 = new HashMap<String, Object>();        map2.put("name", "第二关");        map2.put("icon", R.drawable.ic_menu_info_details);        Map<String, Object> map3 = new HashMap<String, Object>();        map3.put("name", "第三关");        map3.put("icon", R.drawable.ic_menu_invite);        Map<String, Object> map4 = new HashMap<String, Object>();        map4.put("name", "第四关");        map4.put("icon", R.drawable.ic_menu_login);        Map<String, Object> map5 = new HashMap<String, Object>();        map5.put("name", "第五关");        map5.put("icon", R.drawable.ic_menu_manage);        data.add(map1);        data.add(map2);        data.add(map3);        data.add(map4);        data.add(map5);        //data 绑定的数据   list集合        //R.layout.list  数据显示对应的布局        //要让数据跟view对象建立一个映射关系        //from[]  map集合里面数据的key        //to[]  布局文件里的id        lv.setAdapter(new SimpleAdapter(this, data, R.layout.list, new String[]{"name","icon"}, new int[]{R.id.tv,R.id.iv}));    }}

res/layout/activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    tools:context="com.example.simpleadapter.MainActivity" >    <ListView        android:id="@+id/lv"        android:layout_width="match_parent"        android:layout_height="match_parent"         /></RelativeLayout>

创建xml文件 list.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:background="#66000000"    android:orientation="horizontal" >    <ImageView        android:id="@+id/iv"        android:layout_width="wrap_content"        android:layout_height="match_parent">    </ImageView>    <TextView        android:id="@+id/tv"        android:layout_width="wrap_content"        android:layout_height="match_parent" >    </TextView></LinearLayout>

阅读全文

0 0