Checkbox Not Displaying

[shawnlg]

Describe the bug

I have a simple test PDF with a checkbox between two texts. Nothing appears but blank. To Reproduce Code snippet to reproduce the behavior:

Future<Uint8List> makePDF(PdfPageFormat format, Map data) async {
  final pdf = pw.Document();
  pdf.addPage(
    pw.MultiPage(
      pageTheme: pw.PageTheme(
          pageFormat: PdfPageFormat.letter,
          margin: pw.EdgeInsets.only(top: 40, left: 40, right: 40),
          theme: pw.ThemeData.withFont(
            base: await PdfGoogleFonts.openSansRegular(),
            bold: await PdfGoogleFonts.openSansBold(),
            icons: await PdfGoogleFonts.materialIcons(), // this line
          )),
      build: (pw.Context context) {
        return [
          // debug stuff
          pw.Text('start'),
          pw.Checkbox(
            height: 20,
            width: 20,
            name: 'sample',
            value: true,
            tristate: true,
            decoration: pw.BoxDecoration(
              border: pw.Border.all(
                color: PdfColors.black,
                width: 2.0,
              ),
            ),
          ),
          pw.Text('end'),
        ];
      },
    ),
  ); // Page
  return pdf.save();
}

Expected behavior

I tried many different parameters and I cannot display a checkbox. This is for a windows app

Desktop (please complete the following information):

• [ ] iOS
• [ ] Android
• [ ] Browser
• [ x] Windows
• [ ] Linux

[bksbora]

U can use this : pw.Center( child: pw.Icon(const pw.IconData(0xe3c6), size: 16), ),

also dont forget to aply this :

 pdf.addPage(
// Page Ayarları
    pw.MultiPage(
        maxPages: 100,
        theme: pw.ThemeData.withFont(
          base: await PdfGoogleFonts.openSansRegular(),
          bold: await PdfGoogleFonts.openSansBold(),
          icons: await PdfGoogleFonts.materialIcons(), // this line
        ),
        pageFormat: format,
        orientation: pw.PageOrientation.portrait,
        crossAxisAlignment: pw.CrossAxisAlignment.start,
        build: (context) {
          return FinalPDF;
        }),
  );
  ```