Android ListView example

안드로이드의 ListView를 이용하여 각국의 국기와 국가명, CheckBox를 한 아이템으로 구성한 예

각국의 국기 모음 압축파일      flags.zip 

layout/main.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="vertical" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#cccccc"
        android:text="" />

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" >
    </ListView>

</LinearLayout>

layout/row.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 
     xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
	android:layout_alignParentLeft="true"
        android:src="@drawable/ic_launcher" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_centerHorizontal="true"
        android:textSize="12pt"
        android:gravity="bottom"
        android:text="TextView" />

    <CheckBox
        android:id="@+id/checkBox1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentRight="true"
        android:text="" />

</RelativeLayout>

TestActivity.java

package com.example.androidapp;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class TestActivity extends Activity {

	String [] nations = {"Korea", "France", "Romania", "Gambia", "Iceland", "Poland", 
			"Germany", "Italy", "Guam", "Cuba", "Rusia", "Lavita", "Parkistan", "China",
			"UAE", "Egypt", "Hungary", "Venezuela", "Austria", "Indonesia" };
	ArrayAdapter<String> adapter;
	TextView tv;
	ListView listView;
	
    public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         setContentView(R.layout.main);
         
         adapter = new MyAdapter ( this, R.layout.row, R.id.textView2, nations);
         
         listView = (ListView) findViewById(R.id.listView1);

         listView.setAdapter(adapter);

         tv = (TextView) findViewById(R.id.textView1);
    }

} 

MyAdapter.java

package com.example.androidapp;

import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class MyAdapter extends ArrayAdapter<String> 
		implements OnClickListener, OnCheckedChangeListener {

	Context context;
	boolean[] checked;
	int[] flagId = {R.drawable.korea, R.drawable.france, R.drawable.romania,
			R.drawable.gambia,R.drawable.iceland, R.drawable.poland, R.drawable.germany,
			R.drawable.italy, R.drawable.guam, R.drawable.cuba, R.drawable.rusia, R.drawable.lavita,
			R.drawable.pakistan, R.drawable.china, R.drawable.uae, R.drawable.egypt,
			R.drawable.hungary, R.drawable.venezuela, R.drawable.austria, R.drawable.indonesia
	};
	public MyAdapter(Context context, int textViewResourceId, String[] objects) {
		super(context, textViewResourceId, objects);
		this.context = context;
		init();
	}

	public MyAdapter(Context context, int resource, int textViewResourceId,
			String[] objects) {
		super(context, resource, textViewResourceId, objects);
		this.context = context;
		init();
	}
	
	private void init() {
		checked = new boolean[getCount()];
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		View view = convertView;
		if(view==null) {
		    Activity ctx = (Activity) this.context;
		    LayoutInflater inflater =ctx.getLayoutInflater();
		    view = inflater.inflate(R.layout.row, null);
		}
		view.setTag(position);
		
		ImageView iv = (ImageView) view.findViewById(R.id.imageView1);
		TextView tv = (TextView) view.findViewById(R.id.textView2);
		CheckBox cb = (CheckBox) view.findViewById(R.id.checkBox1);
		
		iv.setImageResource(flagId[position]);
		tv.setText(getItem(position));
                /* 체크박스의 위치변경에 따른 상태의 변경은 배열에서 값을 읽어와서 체크박스에 반영하므로 저장은 불필요*/
		cb.setOnCheckedChangeListener(null); 
		cb.setChecked(checked[position]);
		cb.setOnCheckedChangeListener(this);
		cb.setTag(position);
		view.setOnClickListener(this);
		return view;
	}

	/* ListView Item Click Listener */
	public void onClick(View v) {
		CheckBox cb = (CheckBox)v.findViewById(R.id.checkBox1);
		//cb.setOnCheckedChangeListener(null);
		cb.toggle();
		//cb.setOnCheckedChangeListener(this);
		//int position = (Integer)v.getTag();
		//checked[position] = cb.isChecked();
	}

	/* CheckBox changed Listener, 이용자가 체크박스를 선택/해제하면 그 상태를 배열에 저장함 */
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
		int position = (Integer) buttonView.getTag();
		checked[position] = isChecked;
	}

}