在我的项目中,我想用马拉地语打印文本,这可能吗? 这是我的代码
Future<void> printMarathiText() async {
final profile = await CapabilityProfile.load();
final printer = NetworkPrinter(PaperSize.mm80, profile);
List<int> bytes = [];
final generator = Generator(PaperSize.mm80, profile);
await connectToPrinter();
bytes += generator.text('मराठी मध्ये टेक्स्ट प्रिंट करणारा प्रिंटर',
styles: const PosStyles(
align: PosAlign.center,
height: PosTextSize.size1,
width: PosTextSize.size1,
),
linesAfter: 1);
printer.cut();
printer.disconnect();
}
我收到错误为
[ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: Invalid argument (string): Contains invalid characters.: "मराठी मध्ये टेक् स्ट प्रिंट करणारा प्रिंटर"
这个问题有什么解决办法吗?
使用以下代码:
Future<void> printMarathiText() async {
final profile = await CapabilityProfile.load();
final printer = NetworkPrinter(PaperSize.mm80, profile);
final generator = Generator(PaperSize.mm80, profile);
await connectToPrinter();
// Encode Marathi text as UTF-8
final marathiText = 'मराठी मध्ये टेक्स्ट प्रिंट करणारा प्रिंटर';
final marathiBytes = utf8.encode(marathiText);
// Use a suitable font that supports Marathi characters
final font = PosFont.custom(
codeTable: 'CP1252', // Use the code table that matches your font
width: 2,
height: 2,
);
// Print Marathi text
generator.textCustom(
marathiBytes,
styles: const PosStyles(
align: PosAlign.center,
height: PosTextSize.size2,
width: PosTextSize.size2,
),
linesAfter: 1,
customStyles: [font],
);
printer.cut();
printer.disconnect();
}