web_uri_to_image

Render a web URL to a PNG image sized for thermal receipt printers (ESC/POS).
Designed for stable printing: control width (in printer dots), scale, and render delay.

Why this package?

Thermal printers expect a fixed pixel width (dots/line). Typical widths:

• 58mm receipts: 384 dots
• 80mm receipts: 576 dots

This plugin renders a web page at an exact width and returns PNG bytes you can feed into your ESC/POS image command pipeline.

Features

• Capture URL → PNG bytes (Uint8List)
• Specify target width in printer dots (e.g., 384/576)
• Adjustable scale, delayMs, and timeoutMs
• Optional transparent background (useful for some layouts)

How to use

EasyLoading.show( status: 'Loading...', maskType: EasyLoadingMaskType.black, dismissOnTap: false, );

List images = <String>[];
String uri = '';
images = await WebLabelToImage.convert(
  uri: uri,
  duration: 1000,
  scale: 1,
  paperTypeName: "paperang", // paperang_lan
  orderIds: [//orderIds],
);

EasyLoading.dismiss();

// นำทางต่อ

Installation

Add dependency:

flutter pub add web_uri_to_image