08_Android中的SimpleAdapter的使用



1 目的界面

2、编写Android清单文件

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.itheima28.simpleadapterdemo"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="19" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.itheima28.simpleadapterdemo.MainActivity"

android:label="@string/app_name" >

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

</application>

</manifest>

3 activity_main.xml的文件内容

<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=".MainActivity" >

<ListView

android:id="@+id/listview"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

</RelativeLayout>

4 listview_item.xml的文件内容

<?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="wrap_content"

android:gravity="center_vertical"

android:orientation="horizontal"

android:padding="10dip" >

<ImageView

android:id="@+id/iv_icon"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:src="@drawable/f007" />

<TextView

android:id="@+id/tv_name"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_marginLeft="10dip"

android:text="张三"

android:textColor="#FF0000"

android:textSize="23sp"/>

</LinearLayout>

5 MainActivity的内容如下：

package com.itheima28.simpleadapterdemo;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import android.os.Bundle;

import android.support.v7.app.ActionBarActivity;

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 mListView = (ListView) findViewById(R.id.listview);

List<Map<String, Object>> data = new ArrayList<Map<String,Object>>();

Map<String, Object> map = new HashMap<String,Object>();

map.put("name", "张三1");

map.put("icon", R.drawable.f007);

data.add(map);

map = new HashMap<String,Object>();

map.put("name", "张三2");

map.put("icon", R.drawable.f007);

data.add(map);

map = new HashMap<String,Object>();

map.put("name", "张三3");

map.put("icon", R.drawable.f007);

data.add(map);

map = new HashMap<String,Object>();

map.put("name", "张三4");

map.put("icon", R.drawable.f007);

data.add(map);

map = new HashMap<String,Object>();

map.put("name", "张三5");

map.put("icon", R.drawable.f007);

data.add(map);

SimpleAdapter adapter = new SimpleAdapter(

this,   //上下文

data,   //listView绑定的数据

R.layout.listview_item, //listview的子条目的布局的id

new String[]{"name","icon"}, //data数据中的map集合里的key

new int[]{R.id.tv_name,R.id.iv_icon}); //resource中的id

mListView.setAdapter(adapter);

}

}