ResultScreen - Download

result.dart

FlatButton(
  onPressed: () {
    pdfGenerator(name);
    Scaffold.of(context).showSnackBar(
      SnackBar(
        content: Text('$name.pdf downloaded'),
        action: SnackBarAction(
          label: 'View',
          onPressed: () async {
            String downloadPath =
                await getApplicationDocumentsDirectoryPath();
            Navigator.pushNamed(context, '/viewer',
                arguments: {
                  'view': '$downloadPath/$name.pdf'
                });
          },
        ),
      ),
    );
  },
  child: Icon(Icons.file_download),
)