android中ListView_SimpleAdapter

1.首先看下main_activity.xml。其实里面就放了一个ListView。

<LinearLayout 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"
    android:orientation="vertical"
    tools:context=".MainActivity" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
    </ListView>

</LinearLayout>

 

2.接着我们看下适配器中要放的布局（我们把他称之为小布局文件）。

<LinearLayout 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"
    android:orientation="horizontal"
    tools:context=".MainActivity" >

    <ImageView
        android:id="@+id/imvpicture"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/ic_launcher" />
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        
          <TextView android:id="@+id/title"  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            android:textColor="#16CCDD"  
            android:textSize="22sp" 
            android:text="11111"/>  
  
           <TextView android:id="@+id/info"  
            android:layout_width="wrap_content"  
            android:layout_height="wrap_content"  
            android:textColor="#666666"  
            android:textSize="16sp" 
            android:text="11111"/> 
        
        
        
        </LinearLayout>

</LinearLayout>

3.接着我们看下ListView代码。（activity）

 

package com.example.listview_simpleadapter;

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

import android.app.Activity;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

public class MainActivity extends Activity {
    ListView lv = null;
    ImageView imgpicture = null;
    TextView tvtitle =null;
    TextView tvinfo = null;
    String title [] = {"图片","音乐","视频"};
    String info [] = {"美辰良景，给你无限的遐思，让人感觉无限温馨……","轻曼音乐，令人如入仙境，如痴如醉……","震撼场景，360度的视觉捕获，一览无遗……"};
    Integer imv[] = {R.drawable.tupian,R.drawable.yinyue,R.drawable.shiping};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        String[] from = {"imv","title","info"}; 
        int[] to = {R.id.imvpicture,R.id.title,R.id.info};
        lv = (ListView)super.findViewById(R.id.listView1);
        imgpicture = (ImageView)super.findViewById(R.id.imvpicture);
        tvtitle = (TextView)super.findViewById(R.id.title);
        tvinfo = (TextView)super.findViewById(R.id.info);
        lv.setAdapter(new SimpleAdapter(this, getData(), R.layout.simple_small, from, to));
        
    
    }
    private List<? extends Map<String, ?>> getData() {
        List list = new ArrayList();
        for (int i = 0; i<imv.length; i++){
            Map map = new HashMap();
            map.put("imv", imv[i]);
            map.put("title", title[i]);
            map.put("info", info[i]);
            list.add(map);
        }
        return list;
    }
}

 

  4.运行结果

 

其实里面还可以放更多的东西，只要你想放。本文适合有基础的爱好者学习，仅供参考。由于自己现在在做项目，许多地方来不及备注，有什么不懂的地方可以留言，空了给你解答。