Question

I have an application with an embedded drawable 48×48 pixel at 71,12 pixels/inch
I load the same image via a stream to a webserver, then load that stream

return new BitmapDrawable(getActivity().getResources(), new ByteArrayInputStream(imageThumbnail));

the displayed result is:

How can i get the BitmapDrawable to scale the same as the rest of the drawables?

Answer 1

Do something like this:

DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);

Bitmap bitmapOrg = new BitmapDrawable(getResources(), new  ByteArrayInputStream(imageThumbnail)).getBitmap();

int width = bitmapOrg.getWidth();
int height = bitmapOrg.getHeight();

float scaleWidth = metrics.scaledDensity;
float scaleHeight = metrics.scaledDensity;

// create a matrix for the manipulation
Matrix matrix = new Matrix();
// resize the bit map
matrix.postScale(scaleWidth, scaleHeight);

// recreate the new Bitmap
Bitmap resizedBitmap = Bitmap.createBitmap(bitmapOrg, 0, 0, width, height, matrix, true);

Or

Maybe try a differnet approach… try setting the height and width of images in the XML layout in dips, I am guessing you have the ImageView with wrap_content height and width at the moment, try setting the height and width to 48dip