ListViewDemo

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.example.listview;

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

public class ListViewDemo extends Activity {

	String[] items = { "Test text 1", "Test text 2", "Test text 3", "Test text 4", "Test text 5", "Test text 6" };
	@Override
	public void onCreate(Bundle icicle) {
		super.onCreate(icicle);
		setContentView(R.layout.main);
		ListView list = (ListView) findViewById(R.id.list);
		SpecialAdapter adapter = new SpecialAdapter(this, items);
		list.setAdapter(adapter);
}
	static class ViewHolder {
	    TextView text;
	}
}
---------------------------------------------------------------------------------------------------------
package com.example.listview;

import java.util.ArrayList;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import com.example.listview.ListViewDemo.ViewHolder;

public class SpecialAdapter extends BaseAdapter {
	//Defining the background color of rows. The row will alternate between green light and green dark.
	private int[] colors = new int[] { 0xAAf6ffc8, 0xAA538d00 };
	private LayoutInflater mInflater;

	//The variable that will hold our text data to be tied to list.
	private String[] data;

	public SpecialAdapter(Context context, String[] results) {
	    mInflater = LayoutInflater.from(context);
	    this.data = results;
	}

	@Override
	public int getCount() {
	    return data.length;
	}

	@Override
	public Object getItem(int position) {
	    return position;
	}

	@Override
	public long getItemId(int position) {
	    return position;
	}

	//A view to hold each row in the list
	@Override
	public View getView(int position, View convertView, ViewGroup parent) {

	// A ViewHolder keeps references to children views to avoid unneccessary calls
	// to findViewById() on each row.
	ViewHolder holder;

	if (convertView == null) {
	    convertView = mInflater.inflate(R.layout.row, null);

	    holder = new ViewHolder();
	    holder.text = (TextView) convertView.findViewById(R.id.headline);
	    convertView.setTag(holder);
	} else {
	    holder = (ViewHolder) convertView.getTag();
	}
	    // Bind the data efficiently with the holder.
	    holder.text.setText(data[position]);

	    //Set the background color depending of  odd/even colorPos result
	    int colorPos = position % colors.length;
	    convertView.setBackgroundColor(colors[colorPos]);

	   return convertView;
	}


	}
---------------------------------------------------------------------------------------------------------
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"
        >
    <ListView
     android:id="@+id/list"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
---------------------------------------------------------------------------------------------------------row.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content" >

     <TableLayout
         android:id="@+id/tableLayout1"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" >

         <TableRow >

             <TextView
                 android:id="@+id/headline"
                 android:layout_width="0px"
                 android:layout_height="wrap_content"
                 android:layout_weight="0.8"
                 android:padding="10dp"
                 android:textSize="20dp"
                 android:textColor="#FFF"/>

             <ImageView
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 android:layout_gravity="center_vertical|right"
                 android:layout_marginRight="6dp"
                 android:src="@drawable/arrow_icon" />
         </TableRow>
     </TableLayout>
 </LinearLayout>



This is my code .. please help me out why list is coming as null??