Keyboard disappearing when moving the focus to the next TextFormField flutter - flutter

Question

This the form where I'm trying to move the focus. All is working fine till the field title, where I want to move it to a textField phone number but in doing so instead of moving the focus the soft keyboard disappears. I tried to attached scrollController to the SingleScrollView and then move it in onSaved in the textfield before this one I want to get focus:
controller.singleSclollViewController.jumpTo(controller.singleSclollViewController.position.maxScrollExtent);
But it is doing nothing.
This is the complete form with that problem
Form(
key: controller.formKey,
child: SingleChildScrollView(
controller: controller.singleSclollViewController,
padding: EdgeInsets.only(
bottom: MediaQuery.of(context).viewInsets.bottom),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
verticalSpaceMedium,
Image.asset(
'assets/graphics/data.png',
),
Container(
padding: EdgeInsets.symmetric(horizontal: 40),
child: GetBuilder<HomeController>(
builder: (builderController) =>
builderController.isPosition
? CustomTextField(
autofocus: true,
focusNode:
controller.adressFocusNode,
validate: (text) => controller
.validateTextField(text),
maxline: 4,
minLine: 2,
height: 80.h,
width: 0.8.sw,
controller:
controller.adressController,
color:
AppColors.primaryColorShade,
//adress
lableText: 'адреса',
)
: CircularProgressIndicator()),
),
verticalSpaceSmall,
Container(
padding: EdgeInsets.symmetric(
horizontal: 40,
vertical: 10,
),
child: TypeAheadFormField<City>(
validator: (text) {
if (globalController
.doesSuggestionExist) {
//there is no such available city
return 'такого доступного міста немає';
}
return controller
.validateTextField(text ?? '');
},
textFieldConfiguration:
TextFieldConfiguration(
controller: controller.cityController,
decoration:
outlineInputTextFormFieldStyle!
.copyWith(
label: Text(
//city
'місто',
style: textfieldLableStyle,
)),
),
onSuggestionSelected: (City city) {
controller.cityController.text =
city.name;
controller.nameFocusNode.requestFocus();
},
itemBuilder: (_, City city) {
return ListTile(
leading: Icon(Icons.location_city),
title: Text(
city.name,
style: headingBlackStyle,
),
);
},
suggestionsCallback: (pattern) async {
return await globalController
.getSuggestions(pattern, '');
}),
),
verticalSpaceSmall,
OneLineTextField(
focusNode: controller.nameFocusNode,
onSubmit: () {
controller.nameFocusNode.unfocus();
controller.titleFocusNode.requestFocus();
},
keybordhType: TextInputType.name,
validator: (text) {
return controller
.validateTextField(text ?? '');
},
//name/"Ім'я та прізвище"
lable: "Ім'я та прізвище",
maxLenght: 25,
controller: controller.nameController),
verticalSpaceSmall,
OneLineTextField(
onSubmit: () {
controller.singleSclollViewController
.jumpTo(controller
.singleSclollViewController
.position
.maxScrollExtent);
controller.phoneFocusNode.requestFocus();
},
focusNode: controller.titleFocusNode,
maxLenght: 25,
keybordhType: TextInputType.name,
validator: (text) {
return controller
.validateTextField(text ?? '');
},
//title/"потрібен титул"
lable: 'Назва оголошення',
controller: controller.titleController),
verticalSpaceSmall,
OneLineTextField(
focusNode: controller.phoneFocusNode,
onSubmit: () => controller
.descripotionFocusNode
.requestFocus(),
maxLenght: 15,
keybordhType: TextInputType.number,
validator: (text) {
return controller
.validateTextField(text ?? '');
},
//phone number/ "телефонний номер"
lable: 'телефонний номер',
controller:
controller.contactNumberController),
verticalSpaceSmall,
Container(
padding: EdgeInsets.symmetric(horizontal: 40),
child: CustomTextField(
onSubmit: () => controller
.descripotionFocusNode
.unfocus(),
focusNode: controller.descripotionFocusNode,
maxLenght: 400,
validate: (text) =>
controller.validateTextField(text),
maxline: 10,
minLine: 5,
height: 120.h,
width: 0.8.sw,
controller: controller.descriptionController,
color: AppColors.primaryColorShade,
//description
lableText: 'опис',
),
),
],
),
),
),