Request Focus to Field when change is attempted.

Author: danvick

lib/src/fields/form_builder_checkbox.dart

@@ -63,7 +63,7 @@ class FormBuilderCheckbox extends FormBuilderField<bool> {
                 onChanged: state.readOnly
                     ? null
                     : (val) {
-                  state.requestFocus();
+                        state.requestFocus();
                         state.didChange(val);
                       },
                 checkColor: checkColor,

lib/src/fields/form_builder_choice_chips.dart

@@ -113,7 +113,8 @@ class FormBuilderChoiceChip<T> extends FormBuilderField<T> {
                             ? null
                             : (bool selected) {
                                 var choice = selected ? option.value : null;
-                                field.didChange(choice);
+                                state.requestFocus();
+                                state.didChange(choice);
                               },
                         labelStyle: labelStyle,
                         labelPadding: labelPadding,

lib/src/fields/form_builder_country_picker.dart

@@ -91,6 +91,7 @@ class FormBuilderCountryPicker extends FormBuilderField<String> {
               ),
               child: CountryCodePicker(
                 onChanged: (CountryCode e) {
+                  state.requestFocus();
                   state.didChange(e.toString());
                 },
                 initialSelection: initialSelection,

lib/src/fields/form_builder_dropdown.dart

@@ -124,7 +124,7 @@ class FormBuilderDropdown<T> extends FormBuilderField<T> {
                         InkWell(
                           child: clearIcon,
                           onTap: () {
-                            _changeValue(field, null);
+                            _changeValue(state, null);
                           },
                         ),
                       ]
@@ -134,8 +134,9 @@ class FormBuilderDropdown<T> extends FormBuilderField<T> {
               );
             });
 
-  static void _changeValue(FormFieldState field, value) {
-    field.didChange(value);
+  static void _changeValue(_FormBuilderDropdownState state, value) {
+    state.requestFocus();
+    state.didChange(value);
   }
 
   @override

lib/src/fields/form_builder_filter_chips.dart

@@ -113,6 +113,7 @@ class FormBuilderFilterChip extends FormBuilderField<dynamic> {
                                 } else {
                                   currentValue.remove(option.value);
                                 }
+                                state.requestFocus();
                                 field.didChange(currentValue);
                               },
                         selectedColor: selectedColor,

lib/src/fields/form_builder_image_picker.dart

@@ -101,6 +101,7 @@ class FormBuilderImagePicker extends FormBuilderField {
                             if (!state.readOnly)
                               InkWell(
                                 onTap: () {
+                                  state.requestFocus();
                                   field.didChange(
                                       [...field.value]..remove(item));
                                 },
@@ -146,6 +147,7 @@ class FormBuilderImagePicker extends FormBuilderField {
                                 imageQuality: imageQuality,
                                 preferredCameraDevice: preferredCameraDevice,
                                 onImageSelected: (image) {
+                                  state.requestFocus();
                                   field
                                       .didChange([...field.value ?? [], image]);
                                   Navigator.of(state.context).pop();

lib/src/fields/form_builder_radio_group.dart

@@ -62,9 +62,8 @@ class FormBuilderRadioGroup<T> extends FormBuilderField<T> {
                 onChanged: state.readOnly
                     ? null
                     : (value) {
-                        FocusScope.of(state.context).requestFocus(FocusNode());
+                        state.requestFocus();
                         field.didChange(value);
-                        onChanged?.call(value);
                       },
                 items: options
                     .map((option) => option.value)

lib/src/fields/form_builder_radio_list.dart

@@ -52,6 +52,7 @@ class FormBuilderRadioList<T> extends FormBuilderField<T> {
                   onChanged: state.readOnly
                       ? null
                       : (val) {
+                          state.requestFocus();
                           field.didChange(options[i].value);
                         },
                   controlAffinity: controlAffinity,

lib/src/fields/form_builder_range_slider.dart

@@ -89,6 +89,7 @@ class FormBuilderRangeSlider extends FormBuilderField {
                         onChanged: state.readOnly
                             ? null
                             : (RangeValues values) {
+                                state.requestFocus();
                                 field.didChange(values);
                               },
                       ),

lib/src/fields/form_builder_rating.dart

@@ -94,6 +94,7 @@ class FormBuilderRating extends FormBuilderField {
       halfFilledColor: field.widget.halfFilledColor,
       size: field.widget.iconSize,
       onRatingChanged: (val) {
+        field.requestFocus();
         field.didChange(val);
       },
     );