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="慕課網"+i;
????????????int?id?=R.drawable.ic_launcher_foreground;
????????????map.put("pic",R.drawable.ic_launcher_foreground);
????????????map.put("text","慕課網"+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>

列表項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>

日志輸出

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=慕課網1, pic=2131099733}