Question

I’ve an image of 32×32, which I have put in drawable folder and the same image application downloads from server. But downloaded one looks bigger(more like 48×48) and pixelated.

Server Code ( C# )

        MemoryStream tms = new MemoryStream();
        image.Save(tms, System.Drawing.Imaging.ImageFormat.Png);
        byte[] imageData = tms.ToArray();
        //send data to phone

Application Code ( Java )

    ByteArrayInputStream memStream = new ByteArrayInputStream(imageData);
    Drawable image = Drawable.createFromStream(memStream, ""); //big image and pixelated
    memStream.close();

but if I load same file from Resource, its always smaller

Drawable image = getResources().getDrawable(R.drawable.image);

ImageView xml

<ImageView
    android:id="@+id/image"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center_vertical"
    android:focusable="false"
    android:scaleType="center" />

Edit :

Finally, setting the TargetDensity of BitmapDrawable worked!

Bitmap bmp = BitmapFactory.decodeByteArray(imageData, 0,
        imageData.length);
BitmapDrawable image = new BitmapDrawable(bmp);
image.setTargetDensity(bmp.getDensity());

Answer 1

Your image is rescaled depending on the device’s pixel density, try using BitmapFactory.decodeStream(...) and wrap it using new BitmapDrawable(Bitmap) if you want a Drawable object.