ListView

// activity_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"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:weightSum="1"
    android:background="#aaaaaa"
    android:orientation="vertical"
    tools:context="com.example.i310_54.myapplication01.MainActivity">


        <ListView
            android:id="@+id/listView"
            android:layout_width="match_parent"
            android:layout_height="0dp"
            android:layout_weight="0.5"
            android:background="#ffd000"
            />



</LinearLayout>

 

// milk.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"
    android:layout_weight="1"
    >

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="match_parent"
       android:layout_weight="0.5"
        android:orientation="horizontal">

        <Button
            android:id="@+id/button2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="Button 1" />

    </LinearLayout>

    <LinearLayout
        android:layout_width="0dp"
        android:layout_height="match_parent"
        android:layout_weight="0.5"
        android:orientation="vertical">


        <Button
            android:id="@+id/button3"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="Button 2 " />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="center"
            android:text="TextView" />
    </LinearLayout>



</LinearLayout>

// MainActivity.java

 

class Milk{
    String name;
    int age;

    public Milk(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }
}
class MilkAdapter extends ArrayAdapter<Milk>{
     Context context;
     int resource;
    public MilkAdapter(@NonNull Context context, int resource, @NonNull List<Milk> objects) {
        super(context, resource, objects);
        this.context=context;
        this.resource=resource;
    }

    @NonNull
    @Override
    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
        LayoutInflater inflater=(LayoutInflater)context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
        convertView=inflater.inflate(resource,null);
        //여기서부터 코드 수정
            Button button=convertView.findViewById(R.id.button2);
            button.setText(getItem(position).getName());
            TextView textView=convertView.findViewById(R.id.textView2);
            textView.setText(getItem(position).getAge()+"");
        //끝
        return convertView;
    }
}
public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        LinkedList<Milk>li=new LinkedList<Milk>();
        li.add(new Milk("jo",23));
        li.add(new Milk("SORA",23));
        li.add(new Milk("hyeon",23));
        li.add(new Milk("yum",22));
        li.add(new Milk("jeong",28));
        li.add(new Milk("min",23));
        li.add(new Milk("papa",58));

          MilkAdapter milkAdapter=new MilkAdapter(this,R.layout.milk,li);
          ListView listView=findViewById(R.id.listView);
         listView.setAdapter(milkAdapter);


    }



}