AdapterViewTest(Apater와 ListView의관계) - 실습

 

 package org.kosta.adpaterView.test;

import java.util.ArrayList;

import android.R.anim;
import android.os.Bundle;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.support.v4.app.NavUtils;

public class MainActivity extends Activity {
 
 @SuppressLint("ParserError")
 private ArrayAdapter<String> listAdapter;//List, 배열안의 리터럴 값을 View로 변환
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        /*
         * AdapterView 생성
         * 1. AdapterView 객체 조회(생성) - ListView
         * 2. Data를 넣어서 Adapter객체 생성 - ArrayAdapter
         * 3. AdapterView에 Adapter객체 설정
         */
        ListView listView = (ListView) findViewById(R.id.list_view);
        ArrayList list = new ArrayList();
        list.add("대한민국");
        list.add("중국");
        list.add("태국");
        list.add("일본");
       
        listAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,list);//android.R.layout.simple_list_item_1 - 안드로이드 시스템에서 제공해주는 textView layout에 list 값을 넣어라.
        listView.setAdapter(listAdapter);//AdapterView를 ListView에 하나씩 뿌려줌.
       
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

   
}

 

<RelativeLayout 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" >

    <TextView
        android:id="@+id/txt"
        android:textSize="20dp"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="@dimen/padding_medium"
        android:text="나라이름"
        tools:context=".MainActivity" />
 <ListView
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:layout_below="@id/txt"
     android:id="@+id/list_view"/>
</RelativeLayout>

 

* 결과