I have this widget:

   TextInputSettingsTile(
      title: 'Valor actual',
      settingKey: 'current_value',
      initialValue: '0',
      keyboardType: isNumber
          ? TextInputType.numberWithOptions()
          : TextInputType.text,
      inputFormatters: [
        isNumber
            ? FilteringTextInputFormatter.digitsOnly
            : FilteringTextInputFormatter.singleLineFormatter,
      ],
      onChange: (value) {
        if (isNumber) {
          Settings.setValue(
            'current_int_value',
            int.tryParse(value) ?? 0,
          );
        } else {
          Settings.setValue('current_string_value', value);
        }
      },
    ),

This is similar to TextFormField and, in fact, it has almost the same properties.

Please, look at this fragment:

   keyboardType: isNumber
          ? TextInputType.numberWithOptions()
          : TextInputType.text,
      inputFormatters: [
        isNumber
            ? FilteringTextInputFormatter.digitsOnly
            : FilteringTextInputFormatter.singleLineFormatter,
      ],

where isNumber is a boolean variable declared and assigned somewhere else.

When isNumber is true, I want to allow only digits to be inputted, otherwise, any character.

The problem is that it does not work when isNumber value changes. In order to make it work, I need to quit and restart the application.

Any himt, please?