安卓之ListVIew

layout-activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.example.bluelesson.my_listview.MainActivity">

    <ListView
        android:id="@+id/list_item"
        android:divider="#f50909"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    </ListView>

</LinearLayout>

item.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:padding="5dp"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">


    <ImageView
        android:id="@+id/item_logo"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@mipmap/ic_launcher"/>
<LinearLayout
    android:padding="5dp"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">


    <TextView
        android:id="@+id/item_title"
        android:textSize="15sp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="标题"/>


    <TextView
        android:id="@+id/item_size"
        android:textSize="15sp"
        android:text="大小"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <TextView
        android:id="@+id/item_version"
        android:textSize="15sp"
        android:text="版本"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />



</LinearLayout>
</LinearLayout>

MainActivity:
package com.example.bluelesson.my_listview;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
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 AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

//1.获取listview的对象
        ListView listView = findViewById(R.id.list_item);

        //2.准备数据源
        // 2.1 图片
        // 2.2 文字
        List<Map<String,Object>> mapLists = new ArrayList<>();
        Map<String,Object> maps = new HashMap<>();
        maps.put("logo",R.mipmap.ic_launcher);
        maps.put("title","网易云音乐");
        maps.put("version","1.0");
        maps.put("size","45.24MB");

        Map<String,Object> maps2 = new HashMap<>();
        maps2.put("logo",R.mipmap.ic_launcher);
        maps2.put("title","酷狗音乐");
        maps2.put("version","1.4");
        maps2.put("size","34.24MB");

        Map<String,Object> maps3 = new HashMap<>();
        maps3.put("logo",R.mipmap.ic_launcher);
        maps3.put("title","QQ音乐");
        maps3.put("version","2.0");
        maps3.put("size","67.24MB");

        mapLists.add(maps);
        mapLists.add(maps2);
        mapLists.add(maps3);

        //3.创建适配器
        SimpleAdapter simpleAdapter= new SimpleAdapter(this,
                mapLists,        //数据源
                R.layout.item,  //布局文件
                new String[]{"logo","title","version","size"},  //与数据源对应的key
                new int[]{R.id.item_logo,
                        R.id.item_title,
                        R.id.item_version,
                        R.id.item_size}); //要显示的每个控件的ID，与第四个参数对应

        // 4.关联适配器
        listView.setAdapter(simpleAdapter);

    }
}