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的内容例如以下：

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);

    }

}