Android scaling of images to screen density

Question

I have an application with an embedded drawable 48x48 pixel at 71,12 pixels/inch I load the same image via a stream to a webserver, then load that stream

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Answer 1

you can trigger android bitmapfactory to scale bitmap automatically, codes for this:

BitmapFactory.Options options = new BitmapFactory.Options();
DisplayMetrics metrics = context.getApplicationContext().getResources().getDisplayMetrics();
options.inScreenDensity = metrics.densityDpi;
options.inTargetDensity =  metrics.densityDpi;
options.inDensity = DisplayMetrics.DENSITY_DEFAULT;

Bitmap bm = BitmapFactory.decodeStream(in, null, options);
in.close();
BitmapDrawable bitmapDrawable = new BitmapDrawable(context.getResources(), bm);