How to convert Assets Images & Icons to PdfImage in flutter using dart_pdf
Solution 1
Use this instead:
final PdfImage assetImage = await pdfImageFromImageProvider(
pdf: pdf.document,
image: const AssetImage('assets/test.jpg'),
);
Solution 2
This function will create your pdf with image and custom data
var pdf = new pw.Document();
Future<pw.Document> createPDF() async {
var assetImage = pw.MemoryImage(
(await rootBundle.load('assets/images/delivery.png'))
.buffer
.asUint8List(),
);
pdf.addPage(pw.Page(
pageFormat: PdfPageFormat.a4,
build: (pw.Context context) {
var width = MediaQuery.of(this.context).size.width;
var height = MediaQuery.of(this.context).size.height;
return pw.Container(
margin: pw.EdgeInsets.only(top: height * 0.1),
child: pw.ListView(
children: [
// your image here
pw.Container(
height: height * 0.25, child: pw.Image(assetImage)),
// other contents
pw.Row(
mainAxisAlignment: pw.MainAxisAlignment.spaceAround,
children: [
pw.Text("order Id:"),
pw.Text(widget.doc['orderId']),
],
),
],
),
);
}));
return pdf;
}
use this function to save
Future savePdf(pw.Document pdfnew) async {
String pdfName;
File file;
try {
var documentDirectory = await AndroidPathProvider.downloadsPath; // for android downloads folder
// var localDirectory = await getApplicationDocumentsDirectory(); // for local directory
setState(() {
pdfName = "your_pdf_name";
});
file = File("$documentDirectory/$pdfName.pdf");
await file.writeAsBytes(await pdf.save());
return file.path;
} catch (e) {
print(e);
}
}
jazzbpn
With 6+ years of experience, I have developed many iOS/android applications in different context, professional and oldest passion for computer programming began very early in my life. I've learned the social environment is as important as logic aspects of the developing approach then I appreciate very much to get in touch with positive and eager colleagues that involve me in new and exciting challenges. This is why I still want to get involved in new opportunities to improve my skillness.
Updated on December 12, 2022Comments
-
jazzbpn over 1 year
Used Library: dart_pdf After searching I found the same issue in GITHUB but unable to resolve the issue. I tried this but blurry image appears. Please help!!
ByteData data = await rootBundle.load('assets/test.jpg'); var codec = await instantiateImageCodec(data.buffer.asUint8List()); var frame = await codec.getNextFrame(); var imageBytes = await frame.image.toByteData(); PdfImage assetImage = PdfImage(pdf.document, image: imageBytes.buffer.asUint8List(), width: 86, height: 80);
Rendered Image: