Callback for Print Success/Failure Notification about dart_pdf HOT 4 OPEN

The layoutPdf function's documentation is:

/// Prints a Pdf document to a local printer using the platform UI
/// the Pdf document is re-built in a [LayoutCallback] each time the
/// user changes a setting like the page format or orientation.
///
/// returns a future with a bool set to true if the document is printed
/// and false if it is canceled.
/// throws an exception in case of error

so you would do:

import 'package:pdf/pdf.dart' as pw;
import 'package:printing/printing.dart';

final pdf = pw.Document();
// ... add content to the pdf ...

try {
final result = await Printing.layoutPdf(
  onLayout: (PdfPageFormat format) async {
    try {
      final result = await pdf.save();
      return result;
    } catch (e) {
      return null; // Handle error gracefully
    }
  });
    if (result) {
      // Handle successful print
      return PrintStatus.success;
    } else {
      // Handle print canceled
      return PrintStatus.canceled;
    }
} catch (e) {
// handle print error
      return PrintStatus.failure;
}

from dart_pdf.

The layoutPdf function's documentation is:

/// Prints a Pdf document to a local printer using the platform UI /// the Pdf document is re-built in a [LayoutCallback] each time the /// user changes a setting like the page format or orientation. /// /// returns a future with a bool set to true if the document is printed /// and false if it is canceled. /// throws an exception in case of error

so you would do:

import 'package:pdf/pdf.dart' as pw;
import 'package:printing/printing.dart';

final pdf = pw.Document();
// ... add content to the pdf ...

try {
final result = await Printing.layoutPdf(
  onLayout: (PdfPageFormat format) async {
    try {
      final result = await pdf.save();
      return result;
    } catch (e) {
      return null; // Handle error gracefully
    }
  });
    if (result) {
      // Handle successful print
      return PrintStatus.success;
    } else {
      // Handle print canceled
      return PrintStatus.canceled;
    }
} catch (e) {
// handle print error
      return PrintStatus.failure;
}

Hello.

This is working great on Android and iOS devices, but in Web platform It always return true, even without show the Preview Screen to print. So, with no users interaction to Print or Cancel I always get 'true' from the future.

from dart_pdf.

The layoutPdf function's documentation is:

/// Prints a Pdf document to a local printer using the platform UI /// the Pdf document is re-built in a [LayoutCallback] each time the /// user changes a setting like the page format or orientation. /// /// returns a future with a bool set to true if the document is printed /// and false if it is canceled. /// throws an exception in case of error

so you would do:

import 'package:pdf/pdf.dart' as pw;
import 'package:printing/printing.dart';

final pdf = pw.Document();
// ... add content to the pdf ...

try {
final result = await Printing.layoutPdf(
  onLayout: (PdfPageFormat format) async {
    try {
      final result = await pdf.save();
      return result;
    } catch (e) {
      return null; // Handle error gracefully
    }
  });
    if (result) {
      // Handle successful print
      return PrintStatus.success;
    } else {
      // Handle print canceled
      return PrintStatus.canceled;
    }
} catch (e) {
// handle print error
      return PrintStatus.failure;
}

Hello.

This is working great on Android and iOS devices, but in Web platform It always return true, even without show the Preview Screen to print. So, with no users interaction to Print or Cancel I always get 'true' from the future.

I think that always true is happening in windows as well. Even if you don't finish the dialog, it returns true

from dart_pdf.