drawable to bitmap

public static Bitmap drawableToBitmap(Drawable drawable) {
        int width = drawable.getIntrinsicWidth();

        int height = drawable.getIntrinsicHeight();

        Bitmap bitmap = Bitmap.createBitmap(getResources().getDisplayMetrics();, width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
        drawable.draw(canvas);
        return bitmap;
    }