public static Bitmap getLargeQRCodeBitmap(String text, MbwManager manager) {
// make size 85% of display size
int size = Math.min(manager.getDisplayWidth(), manager.getDisplayHeight()) * 81 / 100;
int margin = Math.min(manager.getDisplayWidth(), manager.getDisplayHeight()) * 8 / 100;
return getQRCodeBitmap(text, size, margin);
}
