printImage static method
uint8List format image
Note: the resolution of an image should be within 2M, and the width should be set in accordance with the paper spec (58: 384 Pixel, 80: 576 Pixel). It cannot be shown if it exceeds the paper width.
Implementation
static Future<void> printImage(Uint8List img ) async {
Map<String, dynamic> arguments = <String, dynamic>{};
arguments.putIfAbsent("bitmap", () => img);
await _channel.invokeMethod("PRINT_IMAGE", arguments);
}