public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        list = new ArrayList<HashMap<String,Object>>();
      // list2 = new ArrayList();
        listView = (ListView) findViewById(R.id.ListViewMain);


        String[] projection = new String[] {ContactsContract.CommonDataKinds.Phone._ID, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME, ContactsContract.CommonDataKinds.Phone.NUMBER };
        cursor = this.getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                                            projection, null, null, ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME +" ASC");
        
        
        int idCol = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone._ID);
        int nameCol = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME);
        int numCol = cursor.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER);
        
        while(cursor.moveToNext()){
    
            
            HashMap<String,Object> item = new HashMap<String, Object>();
         
            item.put("id", cursor.getString(idCol));
            item.put("name", cursor.getString(nameCol) );
            item.put("tel", cursor.getString(numCol) );
        
            list.add(item);
        
            
        }
        
        
        cursor2    = getContentResolver().query(ContactsContract.Data.CONTENT_URI, new String []    {ContactsContract.CommonDataKinds.Photo.PHOTO},null, null,null);        
        photoCol = cursor2.getColumnIndex(ContactsContract.CommonDataKinds.Photo.PHOTO);
        
        bt = new Bitmap[cursor2.getCount()];
        
        int i=0;
        while(cursor2.moveToNext()){
            byte[] data = cursor2.getBlob(photoCol);
            if(data!=null){
                bt[i] = BitmapFactory.decodeByteArray(data, 0, data.length);
                Log.i("ss",i + " is " + "Not Null");
            }else{
                bt[i] = BitmapFactory.decodeResource(getResources(), R.drawable.ic_menu_contact);
                Log.i("ss",i + " is " + "Null");
            }
            i++;
        
        //SimpleAdapter adapter = new SimpleAdapter(getApplicationContext(), list, R.layout.customview, new String[]{"photo","name","tel"}, new int[]{R.id.ImageView01,R.id.TextViewName,R.id.TextViewTel});
    //    listView.setAdapter(adapter);
  
        listView.setAdapter(new CustomAdapter(getApplicationContext(), R.layout.customview));
    }
    
    class CustomAdapter extends BaseAdapter{
        
        Context ctx;
        int layout;
        LayoutInflater inflater;
        
        public CustomAdapter(Context ctx, int layout){
            this.ctx  =ctx;
            this.layout = layout;
            inflater = (LayoutInflater) ctx.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            //notifyDataSetChanged();
        }
        @Override
        public int getCount() {
            // TODO Auto-generated method stub
            return list.size();
            
        }

        @Override
        public Object getItem(int position) {
            // TODO Auto-generated method stub
            return position;
        }

        @Override
        public long getItemId(int position) {
            // TODO Auto-generated method stub
            return position;
        }
        

        @Override
        public View getView(int position, View convertView, ViewGroup arg2) {
            // TODO Auto-generated method stub
            
            
            
            if(convertView==null){
                convertView = inflater.inflate(layout, arg2, false);
            }
            
            textName = (TextView) convertView.findViewById(R.id.TextViewName);
            textTel = (TextView) convertView.findViewById(R.id.TextViewTel);
            imageView = (ImageView) convertView.findViewById(R.id.ImageView01);
            

            imageView.setImageBitmap(bt[position]);
            textName.setText(list.get(position).get("name").toString());
            textTel.setText(list.get(position).get("tel").toString());
            
            return convertView;
        }
        
    }