SimpleAdepter创建ListView

1.模拟器上运行结果图

 2.在activity_main.xml布局文件中添加ListView组件：

<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"
    tools:context=".MainActivity"
    android:orientation="vertical">
    <ListView
        android:id="@+id/list1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:divider="@color/black"
        android:dividerHeight="1dp">
    </ListView>
</LinearLayout>

3.在layout目录下新建一个布局文件list_item_layout.xml，添加一个ImageView组件及两个TextView组件：

<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:id="@+id/icon"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:contentDescription="@string/app_name" />
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">
        <TextView
            android:id="@+id/name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="16sp"/>
        <TextView
            android:id="@+id/dex"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textSize="16sp"/>
    </LinearLayout>
</LinearLayout>

4.在MainActivity.java中添加SimpleAdapter代码：

public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        String[] nam={"张三","王五","李四"};
        String[] des={"唱歌","跳舞","打球"};
        int[] ico={R.mipmap.ic_launcher,R.mipmap.ic_launcher,R.mipmap.ic_launcher};
        String[]  str= {"nam","ico","des"};
        int[]  id= {R.id.name,R.id.icon,R.id.dex};

        ListView vie= findViewById(R.id.list1);
        List<Map<String,Object>> lis=new ArrayList<>();
        for(int i = 0; i<nam.length; i++){
            Map<String,Object> item=new HashMap<>();
            item.put("ico",ico[i]);
            item.put("nam",nam[i]);
            item.put("des",des[i]);
            lis.add(item);        }

        SimpleAdapter  ada=new SimpleAdapter(this,lis,R.layout.list_item_layout,str,id);
        vie.setAdapter(ada);
    }
}

SimpleAdapter要用到5个参数，第1个参数是应用接口，第2个参数是list集合，第3个参数是界面布局id，第4个参数是元素数组，第5个参数是组件id数组。