SimpleAdapter

Posted 2020-07-07

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3     xmlns:tools="http://schemas.android.com/tools"
 4     android:layout_width="match_parent"
 5     android:layout_height="match_parent"
 6     android:paddingBottom="@dimen/activity_vertical_margin"
 7     android:paddingLeft="@dimen/activity_horizontal_margin"
 8     android:paddingRight="@dimen/activity_horizontal_margin"
 9     android:paddingTop="@dimen/activity_vertical_margin"
10     tools:context="com.hanqi.testapp2.TestActivity8">
11 
12     <ListView
13         android:layout_width="match_parent"
14         android:layout_height="wrap_content"
15         android:id="@+id/lv_2"></ListView>
16 
17 </LinearLayout>

 1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3      android:layout_width="match_parent"
 4     android:layout_height="wrap_content">
 5 
 6     <ImageView
 7         android:layout_width="70dp"
 8         android:layout_height="70dp"
 9         android:src="@drawable/f1"
10         android:id="@+id/iv_2"/>
11 
12     <LinearLayout
13         android:layout_width="0dp"
14         android:layout_height="match_parent"
15         android:orientation="vertical"
16         android:layout_weight="1"
17         android:layout_marginLeft="20dp"
18         android:gravity="center_vertical">
19 
20         <TextView
21             android:layout_width="match_parent"
22             android:layout_height="wrap_content"
23             android:text="名字=aaa"
24             android:id="@+id/tv_7"/>
25         <TextView
26             android:layout_width="match_parent"
27             android:layout_height="wrap_content"
28             android:text="内容=aaa"
29             android:id="@+id/tv_8"/>
30 
31 
32     </LinearLayout>
33 
34 </LinearLayout>

 1 package com.hanqi.testapp2;
 2 
 3 import android.support.v7.app.AppCompatActivity;
 4 import android.os.Bundle;
 5 import android.widget.ListView;
 6 import android.widget.SimpleAdapter;
 7 
 8 import java.util.ArrayList;
 9 import java.util.HashMap;
10 import java.util.List;
11 import java.util.Map;
12 
13 public class TestActivity8 extends AppCompatActivity {
14 
15     ListView lv_2;
16 
17     @Override
18     protected void onCreate(Bundle savedInstanceState) {
19         super.onCreate(savedInstanceState);
20         setContentView(R.layout.activity_test8);
21 
22         lv_2 = (ListView)findViewById(R.id.lv_2);
23 
24         //1、数据集合  Layout
25         List<Map<String,Object>> lm = new ArrayList<Map<String, Object>>();
26 
27         Map<String,Object> map = new HashMap<String, Object>();
28         map.put("img",R.drawable.f1);
29         map.put("name","美食1");
30         map.put("content","美食1的介绍");
31 
32         lm.add(map);
33 
34         map = new HashMap<String, Object>();
35         map.put("img",R.drawable.f2);
36         map.put("name","美食2");
37         map.put("content","美食2的介绍");
38 
39         lm.add(map);
40 
41 
42 
43         //数组  key的数组
44         String[] strings = {"img","name","content"};
45         int[] ids = {R.id.iv_2,R.id.tv_7,R.id.tv_8};
46 
47         //2、创建
48         SimpleAdapter simpleAdapter = new SimpleAdapter(this,lm,R.layout.simple_adapter,
49                 strings,ids);
50 
51         lv_2.setAdapter(simpleAdapter);
52     }
53 }