Remove TextField focus while on pressing another widget - flutter

Question

i have a form pages contain a widget that will return various widget form according to the api parameters, for example: the parameters is 'type': 'text_box so the widget will return TextField widget if the parameters is 'type': 'dropdown_box' it will return dropdown widget.
This is just an example for what widget i make, the real problem is in the TextField widget because everytime i input in the field then press any other form widget(not pressing the complete button on textfield) and select the value it will return the focus to the TextField before if i press complete button the focus is neutral again what i want is when i press another widget the focus from the TextField is clear.
code
TextFormField(
minLines: widget.minLines,
inputFormatters: [
if (widget.isPrice)
MoneyInputFormatter(
thousandSeparator: ThousandSeparator.Period,
mantissaLength: 0,
),
],
controller: widget.controllerName,
onTap: () {
widget.onTap();
},
enabled: widget.enabled,
obscureText: widget.isObsecure,
style: TextStyle(
fontSize: 14.0,
fontWeight: FontWeight.w400,
color: (widget.textColor != null)
? widget.textColor
: widget.enabled
? Colors.black
: Colors.black38,
),
keyboardType: widget.keyboardType,
maxLines: widget.maxLines,
decoration: InputDecoration(
isDense: true, //remove default padding
fillColor:
widget.inputColor ?? Constants.colorAppointmentTextInput,
filled: true, // activate bg color
// hintText: widget.hintText,
hintText: widget.placeholder ?? 'Masukan ' + widget.hintText,
hintStyle: TextStyle(
fontSize: 14.0,
color: (widget.textColor != null)
? widget.textColor
: widget.enabled
? Colors.black54
: Colors.black38,
),
prefix: widget.prefix,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
borderSide: BorderSide(
color: Constants.colorAppointmentBorderInput,
width: 0.5)),
enabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
borderSide: BorderSide(
color: Constants.colorAppointmentBorderInput,
width: 0.5)),
disabledBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
borderSide: BorderSide(
color: Constants.colorAppointmentBorderInput,
width: 0.5)),
focusedBorder: OutlineInputBorder(
borderRadius: BorderRadius.circular(10),
borderSide:
BorderSide(color: Constants.redTheme, width: 0.5),
),
suffixIcon: widget.suffixIcon),
validator: (value) {
if (value.isEmpty) {
return 'Please enter some text';
}
return null;
},
),
this is what i mean the widget will return widget according to the api
#override
Widget build(BuildContext context) {
if (widget.questionType == 'text_box') {
return TextFild();
} else if (widget.questionType == 'dropdown') {
return Dropdown();
} else if (widget.questionType == 'radio') {
return radioType();
}
}

Answer 1

Add this Line :
FocusScope.of(context).requestFocus(FocusNode());
if keyboard on it will make it off , if it's off it will make it on .

Answer 2

You could use a focus node:
myFocusNode = FocusNode()
Add it to your TextFormField:
TextFormField(
focusNode: myFocusNode,
...
);
When an event that you want to unfocus the text field occurs, like tapping some other button etc. use:
myFocusNode.unfocus();
Make sure to dispose of the FocusNode in your dispose method:
#override
void dispose() {
myFocusNode.dispose();
//...
super.dispose();
}

Answer 3

You can use FocusNode.
Add it to TextformField.
TextFormField(
focusNode: focusNode,
...
);
Call focusNode.unfocus(); on onFieldSubmitted, onSaved. In your case on click action when you show your dropdown.