只对简单应用进行描述。适配器与ListView配合使用可以快速生成item，效果如下例所示

一、简单模式

方式一

xml

java

package com.example.app03;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListView;import java.util.LinkedList;import java.util.List;public class MainActivity extends AppCompatActivity {    private List
     
       mData = null;    private Context mContext;    private AnimalAdapter mAdapter = null;    private ListView list_animal;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //要显示的数据        String[] strs = {"AA","BB","CC","DD","EE","FF","GG","HH","II","JJ"};        //创建ArrayAdapter        ArrayAdapter
      
        adapter = new ArrayAdapter
       
                        (this,android.R.layout.simple_list_item_single_choice ,strs);        //获取ListView对象，通过调用setAdapter方法为ListView设置Adapter设置适配器        ListView list_test = (ListView) findViewById(R.id.lv_test);        list_test.setAdapter(adapter);    }}
       
      
     

效果

 

方式二

创建ListText（即显示的item信息）：选中Values-右键new-xml-values xml file，如下图所示。

在文件中添加如下内容，其中name即为此数据文件的标识，定义好此文件后方式一中的adapter也可以这样定义（此方法不需要下述代码）

ArrayAdapter
     
       adapter = ArrayAdapter.createFromResource(this,               R.array.ListText,android.R.layout.simple_list_item_multiple_choice );
     

 

     
      
       
       
        item1
        
       
        item2
        
       
        item3
        
       
     

 

 xml

android:entries="@array/ListText" 比方法一增加的一行，默认数据在ListText中

 直接运行即可如下效果

 

一、复杂模式

 先来一个效果图

1）准备三张图片

2）新建一个布局，xml文件如下

3）新建两个类：Animal动物类用来存储动物的图标，name和说说；AnimalAdapter类继承BaseAdapter

package com.example.app03;public class Animal{    private String aName;    private String aSpeak;    private int aIcon;    public Animal() {    }    public Animal(String aName, String aSpeak, int aIcon) {        this.aName = aName;        this.aSpeak = aSpeak;        this.aIcon = aIcon;    }    public String getaName() {        return aName;    }    public String getaSpeak() {        return aSpeak;    }    public int getaIcon() {        return aIcon;    }    public void setaName(String aName) {        this.aName = aName;    }    public void setaSpeak(String aSpeak) {        this.aSpeak = aSpeak;    }    public void setaIcon(int aIcon) {        this.aIcon = aIcon;    }}

package com.example.app03;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import java.util.LinkedList;public class AnimalAdapter extends BaseAdapter{    private LinkedList
     
       mData;    private Context mContext;    public AnimalAdapter(LinkedList
      
        mData, Context mContext) {        this.mData = mData;        this.mContext = mContext;    }    @Override    public int getCount() {        return mData.size();    }    @Override    public Object getItem(int position) {        return null;    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        convertView = LayoutInflater.from(mContext).inflate(R.layout.animal_list,parent,false);        ImageView img_icon = (ImageView) convertView.findViewById(R.id.iv_head);        TextView txt_aName = (TextView) convertView.findViewById(R.id.tv_name);        TextView txt_aSpeak = (TextView) convertView.findViewById(R.id.tv_says);        img_icon.setBackgroundResource(mData.get(position).getaIcon());        txt_aName.setText(mData.get(position).getaName());        txt_aSpeak.setText(mData.get(position).getaSpeak());        return convertView;    }}
      
     

4）MainActivity中代码

package com.example.app03;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListView;import java.util.LinkedList;import java.util.List;public class MainActivity extends AppCompatActivity {    private List
     
       mData = null;    private Context mContext;    private AnimalAdapter mAdapter = null;    private ListView list_animal;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);             mContext = MainActivity.this;        list_animal = (ListView) findViewById(R.id.lv_test);        mData = new LinkedList
      
       ();        mData.add(new Animal("狗1", "我是狗1",  R.drawable.aa));        mData.add(new Animal("狗2", "我是狗2",  R.drawable.bb));        mData.add(new Animal("狗3", "我是狗3",  R.drawable.cc));        mAdapter = new AnimalAdapter((LinkedList
       
        ) mData, mContext);        list_animal.setAdapter(mAdapter);    }}
       
      
     

 

原文链接：http://www.runoob.com/w3cnote/android-tutorial-adapter.html