Hi!

I'm having issues with BitmapFactory.decodeStream(inputStream). When using it without options, it will return an image. But when I use it with options as in .decodeStream(inputStream, null, options) it never returns Bitmaps.

What I'm trying to do is to downsample a Bitmap before I actually load it to save memory. I've read some good guides, but none using .decodeStream.

Here

httpIM:NOT//nornalbion.SPAMcom/blog/?p=143

httpIM:NOT//kfb-android.blogspot.SPAMcom/2009/04/image-processing-in-android.html

WORKS JUST FINE

URL url = new URL(sUrl);
HttpURLConnection connection  = (HttpURLConnection) url.openConnection();

InputStream is = connection.getInputStream();
Bitmap img = BitmapFactory.decodeStream(is, null, options);   

DOESNT WORK

InputStream is = connection.getInputStream();
Bitmap img = BitmapFactory.decodeStream(is, null, options);  

InputStream is = connection.getInputStream();    

Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;

BitmapFactory.decodeStream(is, null, options);

Boolean scaleByHeight = Math.abs(options.outHeight - TARGET_HEIGHT) >= Math.abs(options.outWidth - TARGET_WIDTH);

if(options.outHeight * options.outWidth * 2 >= 200*100*2){
// Load, scaling to smallest power of 2 that'll get it <= desired dimensions
    double sampleSize = scaleByHeight
    ? options.outHeight / TARGET_HEIGHT
    : options.outWidth / TARGET_WIDTH;
    options.inSampleSize = 
        (int)Math.pow(2d, Math.floor(
        Math.log(sampleSize)/Math.log(2d)));
}

  // Do the actual decoding
  options.inJustDecodeBounds = false;
  Bitmap img = BitmapFactory.decodeStream(is, null, options);