ListView控件(下)简单适配器

（一）

1.效果图

2.activiy_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.app6.MainActivity">

    <ListView
        android:id="@+id/lv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />
</LinearLayout>

3.item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">
    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/iv"/>
    <TextView
        android:id="@+id/tv"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"></TextView>

</LinearLayout>

3.MianActivity.java

package com.example.app6;

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;
import java.util.Objects;

public class MainActivity extends AppCompatActivity {
    private ListView listView;
    private List<Map<String,Object>> list;
    private Map<String,Object> map;
    private int[] pics = {R.drawable.apple,R.drawable.banana,R.drawable.orange};
    private String[] texts={"苹果","香蕉","橙子"};
    private SimpleAdapter simpleAdapter;

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

        listView = (ListView)findViewById(R.id.lv);
        //新建数据源
        list = new ArrayList<>();
        for(int i=0;i<3;i++){
            map = new HashMap<>();
            map.put("pic",pics[i]);
            map.put("text",texts[i]);
            list.add(map);

        }
        //新建适配器，适配器绑定数据
        simpleAdapter = new SimpleAdapter(MainActivity.this,list,R.layout.item,new String[]{"pic","text"},new int[]{R.id.iv,R.id.tv});

        //视图加载适配器
        listView.setAdapter(simpleAdapter);


    }
}