ListView

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity3"
    android:orientation="vertical">

    <ListView
        android:id="@+id/list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"/>

</LinearLayout>

 

main.java

public class MainActivity3 extends AppCompatActivity {

    ListView list;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main3);

        list = findViewById(R.id.list);

        List<String>data = new ArrayList<>();

        ArrayAdapter<String>adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1,data);
        list.setAdapter(adapter);

        data.add("사과");
        data.add("옥수수");
        data.add("고양이");
        adapter.notifyDataSetChanged();

    }
}

---

결과 값