BitmapScalingAndroid

WebImageGallery.java

private Drawable LoadThumbnailFromURL(String url) {
		
		if(downloader.getBitmapFromCache(url) != null){
			Bitmap b = downloader.getBitmapFromCache(url);
			//HERE IS WHERE I WANT TO SCALE THE IMAGE IF ITS IN THE CACHE
		}

		try {
			URLConnection connection = new URL(url).openConnection();
			String contentType = connection.getHeaderField("Content-Type");
			boolean isImage = contentType.startsWith("image/");
			if (isImage) {
				HttpGet httpRequest = new HttpGet(url);
				HttpClient httpclient = new DefaultHttpClient();
				HttpResponse response = (HttpResponse) httpclient
						.execute(httpRequest);
				HttpEntity entity = response.getEntity();
				BufferedHttpEntity bufferedHttpEntity = new BufferedHttpEntity(
						entity);
				InputStream is = bufferedHttpEntity.getContent();
				downloader.putBitmapInCache(url,BitmapFactory.decodeStream(is));

				// Decode image size
				BitmapFactory.Options o = new BitmapFactory.Options();
				o.inJustDecodeBounds = true;
				BitmapFactory.decodeStream(is, null, o);
				

				// The new size we want to scale to
				final int REQUIRED_SIZE = 150;

				// Find the correct scale value. It should be the power of 2.
				int width_tmp = o.outWidth, height_tmp = o.outHeight;
				int scale = 1;
				while (true) {
					if (width_tmp / 2 < REQUIRED_SIZE
							|| height_tmp / 2 < REQUIRED_SIZE)
						break;
					width_tmp /= 2;
					height_tmp /= 2;
					scale *= 2;
				}

				// Decode with inSampleSize
				is = bufferedHttpEntity.getContent();
				BitmapFactory.Options o2 = new BitmapFactory.Options();
				o2.inSampleSize = scale;
				Bitmap b = BitmapFactory.decodeStream(is, null, o2);
				Drawable d = new BitmapDrawable(b);
				return d;
			} else {
				Bitmap b = BitmapFactory.decodeResource(getResources(),
						R.drawable.no_image);
				Drawable d = new BitmapDrawable(b);
				return d;
			}
		} catch (Exception e) {
			Toast.makeText(getApplicationContext(), "error", Toast.LENGTH_LONG)
					.show();
			Log.e(e.getClass().getName(), e.getMessage(), e);
			return null;
		}
	}