lcdString static method
Sends a text string to the LCD screen.
text: The text to display.
size: The font size for the text.
fill: Whether to fill the remaining space on the LCD with blank characters.
Returns a String message from the printer if successful, or null otherwise.
Implementation
static Future<String?> lcdString(String text,
{required int size, required bool fill}) async {
return await SunmiPrinterPlusPlatform.instance
.sendTextLCD(text: text, size: size, fill: fill);
}