focusNode property
The FocusNode that is used for the text field.
The main purpose of this parameter is to allow the use of a separate text field located in another part of the widget tree instead of the text field built by fieldViewBuilder. For example, it may be desirable to place the text field in the AppBar and the options below in the main body.
When following this pattern, fieldViewBuilder can return
SizedBox.shrink() so that nothing is drawn where the text field would
normally be. A separate text field can be created elsewhere, and a
FocusNode and StreamMessageEditingController can be passed both to that
text field and to StreamAutocomplete.
If this parameter is not null, then messageEditingController must also be not null.
Implementation
final FocusNode? focusNode;