Google Android - это несложно

Код: Выделить всё

public class ItemView extends LinearLayout
{

	public ItemView(Context context)
	{
		super(context);
		initControls(context);
	}

	public ItemView(Context context, AttributeSet attrs)
	{
		super(context, attrs);
		initControls(context);
	}

	private void initControls(Context context)
	{
		View rootView = ((LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE)).inflate(R.layout.item_layout, this);
		ViewHolder holder = new ViewHolder();
		holder.tvItem = (TextView) rootView.findViewById(R.id.tvItem);
		holder.ivItem = (ImageView) rootView.findViewById(R.id.ivItem);
		holder.pbItem = (ProgressBar) rootView.findViewById(R.id.pbItem);
		this.setTag(holder);
	}

	public class ViewHolder
	{
		public TextView tvItem;
		public ImageView ivItem;
		public ProgressBar pbItem;
		public int position;
	}

}

Код: Выделить всё

public class HomeAdapter extends SimpleCursorAdapter
{

	private int position = 0;

	public HomeAdapter(Context context, int layout, Cursor c, String[] from, int[] to, int flags)
	{
		super(context, layout, c, from, to, flags);
	}

	@Override
	public void bindView(View view, Context context, Cursor cursor)
	{
		ViewHolder holder = (ViewHolder) ((ItemView) view).getTag();
		holder.tvItem.setText(cursor.getString(cursor.getColumnIndex(DBHelper.COLUMN_TITLE)));
		holder.position = position;
		position++;
		new AscLoadImage(holder).execute();
	}

	@Override
	public View newView(Context context, Cursor cursor, ViewGroup parent)
	{
		ItemView view = new ItemView(context);
		return view;
	}

	private class AscLoadImage extends AsyncTask<Void, Void, Bitmap>
	{

		private ViewHolder holder;
		private static final String URL_DOWNLOAD = "http://s41.radikal.ru/i093/1304/3f/fdd5de69f9ad.jpg";

		public AscLoadImage(ViewHolder _holder)
		{
			holder = _holder;
			holder.pbItem.setVisibility(View.VISIBLE);
		}

		@Override
		protected void onPreExecute()
		{
			super.onPreExecute();
		}

		@Override
		protected Bitmap doInBackground(Void... params)
		{
			Bitmap bmImg = null;
			URL url = null;
			HttpURLConnection conn = null;
			InputStream is = null;
			try
			{
				url = new URL(URL_DOWNLOAD);
				conn = (HttpURLConnection) url.openConnection();
				conn.setDoInput(true);
				conn.connect();
				is = conn.getInputStream();
				// bmImg = BitmapFactory.decodeStream(is);
				BitmapFactory.Options o = new BitmapFactory.Options();
				o.inJustDecodeBounds = true;
				int scale = 1;
				scale = (int) Math.pow(2, (int) Math.round(Math.log(130 / (double) Math.max(o.outHeight, o.outWidth)) / Math.log(0.5)));
				BitmapFactory.Options options = new BitmapFactory.Options();
				options.inSampleSize = scale;
				bmImg = BitmapFactory.decodeStream(is, null, options);
			}
			catch (IOException e)
			{
				Log.e("MyTag", e.getMessage());
			}
			finally
			{
				if (is != null)
				{
					try
					{
						is.close();
					}
					catch (IOException e)
					{
						Log.e("MyTag", e.getMessage());
					}
				}
				if (conn != null)
				{
					conn.disconnect();
				}
			}
			return bmImg;
		}

		@Override
		protected void onPostExecute(Bitmap result)
		{
			if (holder != null && holder.ivItem != null && holder.pbItem != null)
			{
				holder.ivItem.setImageBitmap(result);
				holder.pbItem.setVisibility(View.GONE);
				Log.i("MyTag", "image load: " + holder.position);
			}
			result = null;
			super.onPostExecute(result);
		}

	}

}