Layout 을 Include 하는 방법을 Launcher 소스에서 보고 test해 보았습니다.
참조
http://www.androidpub.com/256251#11
http://developer.android.com/resources/articles/layout-tricks-reuse.html
http://developer.android.com/resources/articles/layout-tricks-efficiency.html

Layout :  main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
   <include android:id="@+id/cell1" layout="@layout/sub_layout" />
   <include android:id="@+id/cell2" layout="@layout/sub_layout" />
   <include android:id="@+id/cell3" layout="@layout/sub_layout" />
</LinearLayout>

Sub Layout : sub_layout (참조한 사이트에서 발췌)

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout 
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
     android:layout_height="?android:attr/listPreferredItemHeight"
     android:padding="6dip"
     android:background="#FFFFFF">
    
     <ImageView
         android:id="@+id/icon"
         
         android:layout_width="wrap_content"
         android:layout_height="fill_parent"
         
         android:layout_alignParentTop="true"
         android:layout_alignParentBottom="true"
         android:layout_marginRight="6dip"
         
         android:src="@drawable/icon" />
 
     <TextView  
         android:id="@+id/secondLine"
 
         android:layout_width="fill_parent"
         android:layout_height="26dip" 
         
         android:layout_toRightOf="@id/icon"
         android:layout_alignParentBottom="true"
         android:layout_alignParentRight="true"
         
         android:singleLine="true"
         android:ellipsize="marquee"
         android:text="Simple application" 
         android:background="#508050"/>
 
     <TextView
       android:id="@+id/thirdLine"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         
         android:layout_toRightOf="@id/icon"
         android:layout_alignParentRight="true"
         android:layout_alignParentTop="true"
         android:layout_above="@id/secondLine"
         android:layout_alignWithParentIfMissing="true"
                 
         android:gravity="center_vertical"
         android:text="My Application" 
         android:background="#202030"/>
</RelativeLayout>

java

package lowmans.MyIncludeLayoutTest;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;

public class MyIncludeLayoutTest extends Activity{
 
 private final String tag = "MyIncludeLayoutTest";
 
 private final int MAX = 3;
 private RelativeLayout[] rl;
 private ImageView[] iv;
 private TextView[] up;
 private TextView[] down;
 
 private int[] imageID;
 private int[] upTextID; 
 private int[] downTextID;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        rl = new RelativeLayout[MAX];
        iv = new ImageView[MAX];
        up = new TextView[MAX];
        down = new TextView[MAX];
        
        imageID = new int[MAX];
        upTextID = new int[MAX];
        downTextID = new int[MAX];
        
        rl[0] = (RelativeLayout)findViewById(R.id.cell1);
        rl[1] = (RelativeLayout)findViewById(R.id.cell2);
        rl[2] = (RelativeLayout)findViewById(R.id.cell3);
       
        for(int i=0; i<MAX; i++){
         iv[i] = (ImageView)rl[i].findViewById(R.id.icon);
         up[i] = (TextView)rl[i].findViewById(R.id.secondLine);
         down[i] = (TextView)rl[i].findViewById(R.id.thirdLine);
         
         imageID[i] = iv[i].getId();
         Log.i(tag ,"imageID : " + imageID[i]);
         upTextID[i] = up[i].getId();
         Log.i(tag ,"upTextID[i] : "+upTextID[i]);
         downTextID[i] = down[i].getId();
         Log.i(tag ,"downTextID : " + downTextID[i]);
         
         iv[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }
         });
         up[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }
         });
         down[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }
         });
        }
    }
  

    
  
}

잘 되는데 문제가 하나 있습니다. ㅋㅋㅋ

iv[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }
         });
         up[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }
         });
         down[i].setOnClickListener(new OnClickListener(){
          public void onClick(View v){
           Log.i(tag , "" + v.getId());
          }

이부분에서 이벤트가 제대로 안들어 오는군요.. ㅡ,.ㅡ
귀찮아서 이렇게 해봤는데.. 아놔~~