TestGrid Adnroid

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package com. atest ;

import java. util . ArrayList ;

import android. app . Activity ;
import android. os . Bundle ;
import android. view . View ;
import android. view . View . OnClickListener ;
import android. widget . ArrayAdapter ;
import android. widget . Button ;
import android. widget . GridView ;
import android. widget . LinearLayout ;
import android. widget . LinearLayout . LayoutParams ;

public class TestGrid extends Activity implements OnClickListener {

protected ArrayList nums = new ArrayList ( 3 ) ;
protected GridView listHands = null ;

/** Called when the activity is first created. */
@Override
public void onCreate ( Bundle icicle ) {
   super . onCreate ( icicle ) ;

   for ( int x= 0 ; x < 3 ; x++ ) {
      nums. add ( "0" ) ;
   }

   setContentView ( R. layout . gridview ) ;

   LinearLayout numbers = ( LinearLayout ) findViewById ( R. id . grid ) ;

   // Set width, height (-1=fill parent), weight
   LayoutParams params = new LinearLayout. LayoutParams (
         LinearLayout. LayoutParams . WRAP_CONTENT , 30 , 1 ) ;

   this . listHands = new GridView ( this ) ;

   listHands. setId ( 222 ) ;

   listHands. setNumColumns ( 3 ) ;
   listHands. setLayoutParams ( params ) ;
   listHands. setAdapter ( new ArrayAdapter ( this ,
         android. R . layout . simple_list_item_1_small , this . nums ) ) ;

   numbers. addView ( listHands ) ;

   ( ( Button ) findViewById ( R. id . subBtn ) ) . setOnClickListener ( this ) ;

}

/**
* update the list after every SUBMIT click
*/
public void onClick ( View arg0 ) {
   // update the list
   long t = System . currentTimeMillis ( ) ;

   for ( int x= 0 ; x < 3 ; x++ ) {
      this . nums . set ( x, String . valueOf ( t + x ) ) ;
   }

   this . listHands . invalidate ( ) ;
}

}

Here's the XML for the screen

XML:

<?xml version ="1.0" encoding ="utf-8" ?>
id ="@+id/widget24" android:layout_width ="fill_parent"
android:layout_height ="fill_parent" android:background ="#ffffffff"
xmlns:android ="http://schemas.android.com/apk/res/android" >

id ="@+id/grid"
   android:layout_width ="wrap_content" android:layout_height ="50px"
   android:orientation ="vertical" android:scrollbars ="vertical" />

id ="@+id/subBtn" android:layout_width ="wrap_content"
   android:layout_height ="wrap_content" android:text ="SUBMIT"
   android:textSize ="12sp" android:layout_below ="@+id/grid" >
>

>

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