How to get Flutter AlertDialog actions to watch for keyboard event (enter key)? - flutter

Question

Is there a way to get the "enter" key keyboard event in flutter to default to one of the action buttons on my AlertDialog? Note I'm referring to use of flutter for web where there is a physical keyboard. For example I have this dialog:
Future<void> _confirmDelete(int index) async {
var fp = SessionInfo.of(context).myFloorplans.entries.toList()[index].value;
return showDialog<void>(
context: context,
barrierDismissible: false,
builder: (BuildContext context) {
return AlertDialog(
title: Text('Confirm Delete?'),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(8.0))),
content: SingleChildScrollView(
child: ListBody(
children: <Widget>[
Text("Please confirm deleting ${fp.name}"),
],
),
),
actions: <Widget>[
FlatButton(
child: Text('Cancel'),
onPressed: () {
Navigator.of(context).pop();
},
),
FlatButton(
child: Text('Delete'),
onPressed: () {
_deleteFloorplan(index);
Navigator.of(context).pop();
},
),
],
);
},
);
}
Is there a way to default the "enter" key on the keyboard to act like they hit delete? Maybe not the safest UI experience yet, but mostly just asking to understand the foundation here.
Thanks,
Justin

Answer 1

The only thing you need to do is wrap your AlertDialog in a RawKeyboardListener.
check this example :
RawKeyboardListener(
// its better to initialize and dispose of the focus node only for this alert dialog
focusNode: FocusNode(),
autofocus: true,
onKey: (v) {
if (v.logicalKey == LogicalKeyboardKey.enter) {
_deleteFloorplan(index);
Navigator.pop(context);
}
},
child: your alert dialog ...

Answer 2

I don't see anything that will cause the keyboard to show in this dialog.
Anyway if you have a TextFormField that will show the keyboard you can do something like this
onFieldSubmitted: (value) {
_deleteFloorplan(index);
Navigator.of(context).pop();
}
onFieldSubmitted gets called whenever the user hits the text Input action button (the "enter" key you mentioned)