簡介

SimpleAdapter的功能是能夠為AbsListView提供複雜的資料，需要構造ListView

程式碼示例

package peng.liu.testview;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;

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


public class MainActivity extends Activity {
    ListView myList = null;
    String[] names = new String[]{
            "hello","world", "hello","world"
    };
    String[] desc = new String[]{
            "java","c#","python","swift"
    };
    private int[] imageIds = new
 
 int[]{R.drawable.ic_launcher,R.drawable.ic_launcher,
            R.drawable.ic_launcher,R.drawable.ic_launcher};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        List<Map<String,Object>> listItems = new
 
 ArrayList<Map<String, Object>>();
        for (int i = 0;i<names.length;i++){
            Map<String,Object> map = new HashMap<String, Object>();
            map.put("header",imageIds[i]);
            map.put("name",names[i]);
            map.put("desc",desc[i]);
            listItems.add(map);
        }
        SimpleAdapter adapter = new SimpleAdapter(this,listItems,R.layout.simple_item,new String[]{
                "name","desc","header"
        },new int[]{R.id.name,R.id.desc,R.id.header});
        myList = (ListView) findViewById(R.id.myList);
        myList.setAdapter(adapter);
    }

}

<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:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:id="@+id/header"/>
    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingLeft="10dp"
        android:textSize="20dp"
        android:background="#f0f"
        android:id="@+id/name"/>
        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:paddingLeft="10dp"
            android:textSize="14dp"
            android:id="@+id/desc"/>

        </LinearLayout>
</LinearLayout>

監聽事件

有兩種方式：
1.OnItemClickListener（）
2.OnItemSelectorListener（）
這兩種方式都是基於AdapterView提供的。

BaseAdapter簡介

使用BaseAdapter可以獲得對Adapter的控制權，建立多少個列表項以及每個列表項的元件都可以在繼承的複寫方法裡面定義。

廢話不多說，程式碼示例

package peng.liu.testview;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;

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


public class MainActivity extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        BaseAdapter adapter = new BaseAdapter() {
            @Override
            public int getCount() {
                return 40;
            }

            @Override
            public Object getItem(int i) {
                return null;
            }

            @Override
            public long getItemId(int i) {
                return i;
            }

            @Override
            public View getView(int i, View view, ViewGroup viewGroup) {
                LinearLayout line = new LinearLayout(MainActivity.this);
                line.setOrientation(LinearLayout.VERTICAL);
                ImageView image = new ImageView(MainActivity.this);
                image.setImageResource(R.drawable.ic_launcher);
                TextView text = new TextView(MainActivity.this);
                text.setTextSize(20);
                text.setTextColor(Color.RED);
                text.setText("第"+i+"個");
                line.addView(image);
                line.addView(text);
                return line;
            }
        };
        ListView myList = (ListView) findViewById(R.id.myList);
        myList.setAdapter(adapter);
    }
}