第六次作业

package com.example.zuoye6;

import androidx.appcompat.app.AppCompatActivity;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Adapter;
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{
private ListView listView;
    @Override protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ListView lv = (ListView) findViewById(R.id.lv1);
        List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();
        Map<String,Object>map = new HashMap<String,Object>();
        map.put("logo",R.drawable.jingdong);
        map.put("title","京东商城");
        map.put("version","版本：2.4.3");
        map.put("size","大小：78.3MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.doudizhu);
        map.put("title","QQ斗地主");
        map.put("version","版本：4.0.8");
        map.put("size","大小：134.7MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.liulanqi);
        map.put("title","UC浏览器");
        map.put("version","版本：3.8.5");
        map.put("size","大小：63.2MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.tianmao);
        map.put("title","天猫商城");
        map.put("version","版本：5.6.4");
        map.put("size","大小：88.3MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.xinlangweibo);
        map.put("title","新浪微博");
        map.put("version","版本：4.1.6");
        map.put("size","大小：89.6MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.weixin);
        map.put("title","微信");
        map.put("version","版本：6.0.3");
        map.put("size","大小：216.3MB");
        list.add(map);

        map = new HashMap<String,Object>();
        map.put("logo",R.drawable.qq);
        map.put("title","QQ");
        map.put("version","版本：7.8.3");
        map.put("size","大小：178.3MB");
        list.add(map);

        SimpleAdapter adapter = new SimpleAdapter(
                this,
                list,R.layout.item,
                new String[]{"logo","title","version","size"},
                new int[]{R.id.logo,R.id.title,R.id.version,R.id.size}
        );
lv.setAdapter(adapter);
    }
}

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     xmlns:app="http://schemas.android.com/apk/res-auto"
 5     xmlns:tools="http://schemas.android.com/tools"
 6     android:layout_width="match_parent"
 7     android:layout_height="match_parent"
 8     tools:context=".MainActivity">
 9 
10     <ListView
11         android:id="@+id/lv1"
12         android:layout_width="fill_parent"
13         android:layout_height="fill_parent">
14 
15     </ListView>
16 </LinearLayout>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <RelativeLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6 android:descendantFocusability="blocksDescendants">
 7 
 8 
 9 
10     <RelativeLayout
11         android:id="@+id/box"
12         android:background="#FCFDFC"
13         android:layout_width="match_parent"
14         android:layout_height="wrap_content"
15         android:layout_marginLeft="5dp"
16         android:layout_marginRight="5dp"
17         android:padding="5dp"/>
18 
19 <ImageView
20     android:id="@+id/logo"
21     android:layout_width="70dp"
22     android:layout_height="70dp"
23     android:src="@drawable/jingdong"
24     android:layout_centerVertical="true"/>
25 
26 
27     <Button
28         android:id="@+id/bt1"
29         android:layout_width="wrap_content"
30         android:layout_height="wrap_content"
31         android:text="安装"
32         android:layout_alignParentRight="true"
33         android:layout_centerVertical="true"
34         />
35 
36 
37     <LinearLayout
38         android:id="@+id/textbox"
39         android:layout_width="match_parent"
40         android:layout_height="70dp"
41         android:layout_toRightOf="@+id/logo"
42         android:layout_toLeftOf="@+id/bt1"
43         android:layout_centerVertical="true"
44         android:orientation="vertical"
45 
46 
47         >
48         <TextView
49             android:id="@+id/title"
50             android:layout_width="wrap_content"
51             android:layout_height="wrap_content"
52             android:layout_marginTop="3dp"
53             android:text="京东商城"
54             android:textSize="16sp" />
55 
56 
57         <TextView
58             android:id="@+id/version"
59             android:layout_width="wrap_content"
60             android:layout_height="wrap_content"
61             android:layout_marginTop="5dp"
62             android:text="版本：2.4.3"
63             android:textColor="#666666"
64             android:textSize="13sp" />
65 
66         <TextView
67             android:id="@+id/size"
68             android:layout_width="wrap_content"
69             android:layout_height="wrap_content"
70             android:layout_marginTop="5dp"
71             android:text="大小：78.3MB"
72             android:textColor="#666666"
73             android:textSize="13sp" />
74 
75 
76     </LinearLayout>
77 
78 </RelativeLayout>