Hi Jeremy Isenburg,
We use the DropdownButton widget to render the Combo box form field in the SfPdfViewer widget.
The reported issue can be replicated without the SfPdfViewer widget itself. Please find the minimal code snippet to replicate the issue without using the SfPdfViewer widget and using only the DropDownButton widget.
import 'package:flutter/material.dart';
// import 'package:syncfusion_flutter_pdfviewer/pdfviewer.dart';
void main() {
runApp(
MaterialApp(
title: 'Title',
home: const ComboBoxDemo(),
routes: {
TestScreen.routeName: (ctx) => TestScreen(),
},
),
);
}
class ComboBoxDemo extends StatefulWidget {
const ComboBoxDemo({super.key});
@override
State<ComboBoxDemo> createState() => _ComboBoxDemoState();
}
class _ComboBoxDemoState extends State<ComboBoxDemo> {
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: ElevatedButton(
onPressed: () => Navigator.of(context)
.pushNamed(TestScreen.routeName, arguments: "some arg")
.then((value) => setState(() {})),
child: const Text('press me'),
),
),
);
}
}
class TestScreen extends StatelessWidget {
static const routeName = '/route';
final List<String> items = <String>['A', 'B', 'C', 'D'];
TestScreen({super.key});
@override
Widget build(BuildContext context) {
print('building new screen!');
final args = ModalRoute.of(context)!.settings.arguments as String;
// return Scaffold(body: SfPdfViewer.asset('assets/radio.pdf'));
return Scaffold(
body: DropdownButton<String>(
value: items[0],
items: items
.map((item) => DropdownMenuItem<String>(
value: item,
child: Text(item),
))
.toList(),
onChanged: (newValue) {
print('new value: $newValue');
}),
);
}
}
We suspect that this is the behavior of Flutter framework.
