simpleAdapter代码

最新推荐文章于 2022-10-14 06:50:47 发布

原创最新推荐文章于 2022-10-14 06:50:47 发布 · 313 阅读

CC 4.0 BY-SA版权

本文介绍了一种在Android应用中使用SimpleAdapter来显示带有图片、文本及价格的列表项的方法。通过实例展示了如何创建和配置SimpleAdapter，并为每个列表项提供自定义布局。

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >
    
    <ImageView 
        android:id="@+id/image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:maxHeight="5dp"/>
    
    <TextView 
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_toRightOf="@id/image"/>

    <TextView 
        android:id="@+id/price"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/text"
        android:layout_marginLeft="20dp"
        android:text="￥"/>
</RelativeLayout>

package com.example.simpleadapater;

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

import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.os.Build;

public class MainActivity extends Activity {

	String[]data={"apple","banana","grape","peach","pear","strawberry","mango","watermelon","orange"};
	private List<Map<String, Object>> alList;
	private ListView listView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        listView=(ListView) findViewById(R.id.listView);
        alList=new ArrayList<Map<String,Object>>();
        SimpleAdapter adapter=new SimpleAdapter(this, GetData(), R.layout.item, new String[]{"pic","te","pri"}, new int[]{R.id.image,R.id.text,R.id.price});
        listView.setAdapter(adapter);
    }
    
    public List<Map<String, Object>> GetData()
    {
    	
    	Map<String, Object>map0=new HashMap<String, Object>();
    	map0.put("pic", R.drawable.ic_apple);
    	map0.put("te", data[0]);
    	map0.put("pri", "￥2.5");
    	alList.add(map0);
    	Map<String, Object>map1=new HashMap<String, Object>();
    	map1.put("pic", R.drawable.ic_banana);
    	map1.put("te", data[1]);
    	map1.put("pri", "￥3.5");
    	alList.add(map1);
    	Map<String, Object>map2=new HashMap<String, Object>();
    	map2.put("pic", R.drawable.ic_grape);
    	map2.put("te", data[2]);
    	map2.put("pri", "￥5.5");
    	alList.add(map2);
    	Map<String, Object>map3=new HashMap<String, Object>();
    	map3.put("pic", R.drawable.ic_peach);
    	map3.put("te", data[3]);
    	map3.put("pri", "￥22");
    	alList.add(map3);
    	Map<String, Object>map4=new HashMap<String, Object>();
    	map4.put("pic", R.drawable.ic_pear);
    	map4.put("te", data[4]);
    	map4.put("pri", "￥4.5");
    	alList.add(map4);
    	Map<String, Object>map5=new HashMap<String, Object>();
    	map5.put("pic", R.drawable.ic_strawberry);
    	map5.put("te", data[5]);
    	map5.put("pri", "￥6.5");
    	alList.add(map5);
    	Map<String, Object>map6=new HashMap<String, Object>();
    	map6.put("pic", R.drawable.ic_mango);
    	map6.put("te", data[6]);
    	map6.put("pri", "￥7.5");
    	alList.add(map6);
    	Map<String, Object>map7=new HashMap<String, Object>();
    	map7.put("pic", R.drawable.ic_watermelon);
    	map7.put("te", data[7]);
    	map7.put("pri", "￥9.5");
    	alList.add(map7);
    	Map<String, Object>map8=new HashMap<String, Object>();
    	map8.put("pic", R.drawable.ic_orange);
    	map8.put("te", data[8]);
    	map8.put("pri", "￥4.5");
    	alList.add(map8);
    
    	
    	return alList;
    }


}