android中ListView_SimpleAdapter

时间：2024-01-06 21:09:20

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="" >

    </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=""/>  

           <TextView android:id="@+id/info"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#666666"

            android:textSize="16sp"

            android:text=""/> 

        </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 = ; 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

android中ListView_SimpleAdapter

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。

相关文章