TextInputAction.next Makes the Keyboard Dissapear - flutter

Question

I am using TextFormField in my Flutter app, like in this snippet:
#override
Widget build(BuildContext context) {
return Scaffold(
body: Column(
children: <Widget>[
TextField(
decoration: InputDecoration(hintText: "TextField A"),
textInputAction: TextInputAction.next,
onSubmitted: (_) => FocusScope.of(context).nextFocus(), // move focus to next
),
TextField(
decoration: InputDecoration(hintText: "TextField B"),
textInputAction: TextInputAction.next,
onSubmitted: (_) => FocusScope.of(context).nextFocus(), // move focus to next
),
TextField(
decoration: InputDecoration(hintText: "TextField C"),
textInputAction: TextInputAction.done,
onSubmitted: (_) => FocusScope.of(context).unfocus(), // submit and hide keyboard
),
],
),
);
}
My problem is that whenever the next field is behind the keyboard, the keyboard just disappears instead of moving to the next focus...
This is a video of the problem:
https://www.youtube.com/watch?v=h-Cv2UpnHrY&feature=youtu.be
As you can see, my wanted behaviour is the focus to move from the email field to the address field, but instead the keyboard disappears and nothing happens.
How can I solve it?

Answer 1

I think you have to create a new object first of all that is..I am using another example just to demonstrate:
final FocusNode _emailFocusNode = FocusNode();
final FocusNode _passwordFocusNode = FocusNode();
TextField(
decoration: InputDecoration(
labelText: 'Email',
hintText: 'test#test.com',
errorText: emailErrorText),
textInputAction: TextInputAction.next,
keyboardType: TextInputType.emailAddress,
controller: _emailController,
focusNode: _emailFocusNode,
onEditingComplete: _newFocusNode
TextField(
decoration: InputDecoration(
labelText: 'Password',
errorText: passwordErrorText,
),
obscureText: true,
textInputAction: TextInputAction.done,
controller: _passwordController,
focusNode: _passwordFocusNode,
}
void _newFocusNode() {
final newFocus=_emailFocusNode?_passwordFocusNode:_emailFocusNode;
FocusScope.of(context).requestFocus(newFocus);
}