Android ListView, Dynamic item example

안드로이드의 ListView 상에 보여질 아이템을 동적으로 결정하는 예

리스트뷰에 보여질 행이 홀수행인지 짝수행인지에 따라서 아이템의 배경색을 동적으로 적용하는 예

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>

TestActivity.java

package com.example.androidapp;

import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;

public class TestActivity extends Activity implements OnItemClickListener {

	String [] name = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L",
			"M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"};
	ArrayAdapter<String> adapter;
	TextView tv;
	ListView listView;
	
    public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
         setContentView(R.layout.main);
         
         adapter = new MyAdapter ( this, android.R.layout.simple_list_item_1, name);
         
         listView = (ListView) findViewById(R.id.listView1);

         listView.setAdapter(adapter);
         listView.setOnItemClickListener(this);

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

    public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
	TextView tv = (TextView) v;
	String name = tv.getText().toString();
	this.tv.setText(name);
    }

} 

MyAdapter.java

package com.example.androidapp;

import android.content.Context;
import android.graphics.Color;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;

public class MyAdapter extends ArrayAdapter<String> {
	
	String[] objects;
	
	public MyAdapter(Context context, int textViewResourceId, String[] objects) {
		super(context, textViewResourceId, objects);
		this.objects = objects;
	}

	@Override
	public View getView(int position, View convertView, ViewGroup parent) {
		TextView view = (TextView) convertView;
		if(view==null) {
			view = new TextView(getContext());
		}
		view.setText(objects[position]);
		view.setHeight(80);
		if(position%2==0) view.setBackgroundColor(Color.LTGRAY);
		else view.setBackgroundColor(Color.WHITE);
		return view;
	}

}