package com.example.liusy.myalarm2;

import android.nfc.Tag;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
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 No2SimpleList extends AppCompatActivity {
    private static final String TAG = "No2SimpleList";
    private List<Map<String,Object>> dataList;
    private SimpleAdapter simpleAdapter;
    private ListView listView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_no2_simple_list);
        listView=(ListView)findViewById(R.id.ListViewSimpleList);
        dataList=new ArrayList<Map<String,Object>>();
        getData();

        Log.e(TAG, "is empty:"+dataList.isEmpty());
        simpleAdapter =new SimpleAdapter(this,dataList,R.layout.support_simple_spinner_dropdown_item,
                new String[]{"pic","text"},new int[]{R.id.pic,R.id.text});
        listView.setAdapter(simpleAdapter);
        Log.e(TAG, "simpleAdapter.getItem(1).toString():  " +simpleAdapter.getItem(1).toString());

    }
    private List<Map<String,Object>> getData(){
        for(int i=0;i<50;i++){
            Map<String,Object> map =new HashMap<String,Object>();
            String text="慕课网"+i;
            int id =R.drawable.ic_launcher_foreground;
            map.put("pic",R.drawable.ic_launcher_foreground);
            map.put("text","慕课网"+i);
            dataList.add(map);



        }
        return dataList;
    }

}

主界面layout

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

    <ListView
        android:id="@+id/ListViewSimpleList"
        android:layout_width="match_parent"
        android:layout_height="match_parent"></ListView>
</LinearLayout>

列表项layout

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    <ImageView
        android:id="@+id/pic"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="15dp"
        android:src="@drawable/ic_launcher_foreground"
        />
    <TextView
        android:id="@+id/text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="40sp"
        android:textColor="#609183"
        android:text="dd"/>

</LinearLayout>

日志输出

06-20 07:04:47.518 7181-7181/com.example.liusy.myalarm2 E/No2SimpleList: is empty:false

06-20 07:04:47.519 7181-7181/com.example.liusy.myalarm2 E/No2SimpleList: simpleAdapter.getItem(1).toString():  {text=慕课网1, pic=2131099733}