ML-20 Dialog pickers content jumps when selected item is out of vie (#21)

* fixed primary color picker overscroll

* dialog cleanup

* fixed photography value picker overscroll

* Update widget_dialog_picker_photography_value.dart

lib/providers/theme_provider.dart

@@ -208,6 +208,11 @@ class _ThemeDataProvider extends StatelessWidget {
         surfaceTintColor: scheme.surfaceTint,
         elevation: 6,
       ),
+      dividerColor: scheme.outlineVariant,
+      dividerTheme: DividerThemeData(
+        color: scheme.outlineVariant,
+        space: 0,
+      ),
       listTileTheme: ListTileThemeData(
         style: ListTileStyle.list,
         iconColor: scheme.onSurface,

lib/res/dimens.dart

@@ -37,5 +37,17 @@ class Dimens {
 
   // Dialog
   // Taken from `Dialog` documentation
+  static const EdgeInsets dialogTitlePadding = EdgeInsets.fromLTRB(
+    paddingL,
+    paddingL,
+    paddingL,
+    paddingM,
+  );
+  static const EdgeInsets dialogActionsPadding = EdgeInsets.fromLTRB(
+    paddingL,
+    paddingM,
+    paddingL,
+    paddingL,
+  );
   static const EdgeInsets dialogMargin = EdgeInsets.symmetric(horizontal: 40.0, vertical: 24.0);
 }

lib/screens/metering/components/shared/readings_container/components/animated_dialog_picker/components/photography_value_picker_dialog/widget_dialog_picker_photography_value.dart

@@ -36,15 +36,8 @@ class PhotographyValuePickerDialog<T extends PhotographyValue> extends StatefulW
 class _PhotographyValuePickerDialogState<T extends PhotographyValue>
     extends State<PhotographyValuePickerDialog<T>> {
   late T _selectedValue = widget.initialValue;
-  final _scrollController = ScrollController();
-
-  @override
-  void initState() {
-    super.initState();
-    WidgetsBinding.instance.addPostFrameCallback((_) {
-      _scrollController.jumpTo(Dimens.grid56 * widget.values.indexOf(_selectedValue));
-    });
-  }
+  late final _scrollController =
+      ScrollController(initialScrollOffset: Dimens.grid56 * widget.values.indexOf(_selectedValue));
 
   @override
   void dispose() {
@@ -57,35 +50,23 @@ class _PhotographyValuePickerDialogState<T extends PhotographyValue>
     return Column(
       crossAxisAlignment: CrossAxisAlignment.stretch,
       children: [
-        Column(
-          children: [
-            Padding(
-              padding: const EdgeInsets.fromLTRB(
-                Dimens.paddingL,
-                Dimens.paddingL,
-                Dimens.paddingL,
-                Dimens.paddingM,
+        Padding(
+          padding: Dimens.dialogTitlePadding,
+          child: Column(
+            children: [
+              Text(
+                widget.title,
+                style: Theme.of(context).textTheme.headlineSmall!,
               ),
-              child: Column(
-                children: [
-                  Text(
-                    widget.title,
-                    style: Theme.of(context).textTheme.headlineSmall!,
-                  ),
-                  const SizedBox(height: Dimens.grid16),
-                  Text(
-                    widget.subtitle,
-                    style: Theme.of(context).textTheme.bodyMedium!,
-                  ),
-                ],
+              const SizedBox(height: Dimens.grid16),
+              Text(
+                widget.subtitle,
+                style: Theme.of(context).textTheme.bodyMedium!,
               ),
-            ),
-            Divider(
-              color: Theme.of(context).colorScheme.onSurface,
-              height: 0,
-            ),
-          ],
+            ],
+          ),
         ),
+        const Divider(),
         Expanded(
           child: ListView.builder(
             controller: _scrollController,
@@ -114,32 +95,25 @@ class _PhotographyValuePickerDialogState<T extends PhotographyValue>
             ),
           ),
         ),
-        Column(
-          children: [
-            Divider(
-              color: Theme.of(context).colorScheme.onSurface,
-              height: 0,
-            ),
-            Padding(
-              padding: const EdgeInsets.all(Dimens.paddingL),
-              child: Row(
-                crossAxisAlignment: CrossAxisAlignment.end,
-                mainAxisSize: MainAxisSize.max,
-                children: [
-                  const Spacer(),
-                  TextButton(
-                    onPressed: widget.onCancel,
-                    child: Text(S.of(context).cancel),
-                  ),
-                  const SizedBox(width: Dimens.grid16),
-                  TextButton(
-                    onPressed: () => widget.onSelect(_selectedValue),
-                    child: Text(S.of(context).select),
-                  ),
-                ],
+        const Divider(),
+        Padding(
+          padding: Dimens.dialogActionsPadding,
+          child: Row(
+            crossAxisAlignment: CrossAxisAlignment.end,
+            mainAxisSize: MainAxisSize.max,
+            children: [
+              const Spacer(),
+              TextButton(
+                onPressed: widget.onCancel,
+                child: Text(S.of(context).cancel),
               ),
-            ),
-          ],
+              const SizedBox(width: Dimens.grid16),
+              TextButton(
+                onPressed: () => widget.onSelect(_selectedValue),
+                child: Text(S.of(context).select),
+              ),
+            ],
+          ),
         ),
       ],
     );

lib/screens/settings/components/calibration/components/calibration_dialog/widget_dialog_calibration.dart

@@ -3,11 +3,11 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:lightmeter/environment.dart';
 import 'package:lightmeter/generated/l10n.dart';
 import 'package:lightmeter/res/dimens.dart';
-import 'package:lightmeter/screens/settings/components/calibration/components/calibration_dialog/event_dialog_calibration.dart';
 import 'package:lightmeter/screens/shared/centered_slider/widget_slider_centered.dart';
 import 'package:lightmeter/utils/to_string_signed.dart';
 
 import 'bloc_dialog_calibration.dart';
+import 'event_dialog_calibration.dart';
 import 'state_dialog_calibration.dart';
 
 class CalibrationDialog extends StatelessWidget {
@@ -17,12 +17,7 @@ class CalibrationDialog extends StatelessWidget {
   Widget build(BuildContext context) {
     final bool hasLightSensor = context.read<Environment>().hasLightSensor;
     return AlertDialog(
-      titlePadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingM,
-      ),
+      titlePadding: Dimens.dialogTitlePadding,
       title: Text(S.of(context).calibration),
       contentPadding: const EdgeInsets.symmetric(horizontal: Dimens.paddingL),
       content: SingleChildScrollView(
@@ -67,12 +62,7 @@ class CalibrationDialog extends StatelessWidget {
           ],
         ),
       ),
-      actionsPadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingM,
-        Dimens.paddingL,
-        Dimens.paddingL,
-      ),
+      actionsPadding: Dimens.dialogActionsPadding,
       actions: [
         TextButton(
           onPressed: Navigator.of(context).pop,

lib/screens/settings/components/primary_color/components/primary_color_picker_dialog/widget_dialog_picker_primary_color.dart

@@ -13,10 +13,7 @@ class PrimaryColorDialogPicker extends StatefulWidget {
 
 class _PrimaryColorDialogPickerState extends State<PrimaryColorDialogPicker> {
   late Color _selected = Theme.of(context).primaryColor;
-  late final ScrollController _scrollController = ScrollController(
-    initialScrollOffset:
-        ThemeProvider.primaryColorsList.indexOf(_selected) * (Dimens.grid48 + Dimens.grid8),
-  );
+  final ScrollController _scrollController = ScrollController();
 
   @override
   void dispose() {
@@ -27,42 +24,38 @@ class _PrimaryColorDialogPickerState extends State<PrimaryColorDialogPicker> {
   @override
   Widget build(BuildContext context) {
     return AlertDialog(
-      titlePadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingM,
-      ),
+      titlePadding: Dimens.dialogTitlePadding,
       title: Text(S.of(context).choosePrimaryColor),
       content: SizedBox(
         height: Dimens.grid48,
         width: double.maxFinite,
-        child: ListView.separated(
+        child: SingleChildScrollView(
           controller: _scrollController,
           scrollDirection: Axis.horizontal,
           padding: EdgeInsets.zero,
-          separatorBuilder: (_, __) => const SizedBox(width: Dimens.grid8),
-          itemCount: ThemeProvider.primaryColorsList.length,
-          itemBuilder: (_, index) {
-            final color = ThemeProvider.primaryColorsList[index];
-            return _SelectableColorItem(
-              color: color,
-              selected: color.value == _selected.value,
-              onTap: () {
-                setState(() {
-                  _selected = color;
-                });
+          child: Row(
+            children: List.generate(
+              ThemeProvider.primaryColorsList.length,
+              (index) {
+                final color = ThemeProvider.primaryColorsList[index];
+                return Padding(
+                  padding: EdgeInsets.only(left: index == 0 ? 0 : Dimens.paddingS),
+                  child: _SelectableColorItem(
+                    color: color,
+                    selected: color.value == _selected.value,
+                    onTap: () {
+                      setState(() {
+                        _selected = color;
+                      });
+                    },
+                  ),
+                );
               },
-            );
-          },
+            ),
+          ),
         ),
       ),
-      actionsPadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingM,
-        Dimens.paddingL,
-        Dimens.paddingL,
-      ),
+      actionsPadding: Dimens.dialogActionsPadding,
       actions: [
         TextButton(
           onPressed: Navigator.of(context).pop,
@@ -79,7 +72,7 @@ class _PrimaryColorDialogPickerState extends State<PrimaryColorDialogPicker> {
   }
 }
 
-class _SelectableColorItem extends StatelessWidget {
+class _SelectableColorItem extends StatefulWidget {
   final Color color;
   final bool selected;
   final VoidCallback onTap;
@@ -90,19 +83,34 @@ class _SelectableColorItem extends StatelessWidget {
     required this.onTap,
   }) : super(key: ValueKey(color));
 
+  @override
+  State<_SelectableColorItem> createState() => _SelectableColorItemState();
+}
+
+class _SelectableColorItemState extends State<_SelectableColorItem> {
+  @override
+  void initState() {
+    super.initState();
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (widget.selected) {
+        Scrollable.ensureVisible(context);
+      }
+    });
+  }
+
   @override
   Widget build(BuildContext context) {
     return GestureDetector(
-      onTap: onTap,
+      onTap: widget.onTap,
       child: FilledCircle(
         size: Dimens.grid48,
-        color: color,
+        color: widget.color,
         child: AnimatedSwitcher(
           duration: Dimens.durationS,
-          child: selected
+          child: widget.selected
               ? Icon(
                   Icons.check,
-                  color: ThemeData.estimateBrightnessForColor(color) == Brightness.light
+                  color: ThemeData.estimateBrightnessForColor(widget.color) == Brightness.light
                       ? Colors.black
                       : Colors.white,
                 )

lib/screens/settings/components/shared/dialog_picker.dart/widget_dialog_picker.dart

@@ -26,12 +26,7 @@ class _DialogPickerState<T> extends State<DialogPicker<T>> {
   @override
   Widget build(BuildContext context) {
     return AlertDialog(
-      titlePadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingL,
-        Dimens.paddingM,
-      ),
+      titlePadding: Dimens.dialogTitlePadding,
       title: Text(widget.title),
       contentPadding: EdgeInsets.zero,
       content: Column(
@@ -53,12 +48,7 @@ class _DialogPickerState<T> extends State<DialogPicker<T>> {
             )
             .toList(),
       ),
-      actionsPadding: const EdgeInsets.fromLTRB(
-        Dimens.paddingL,
-        Dimens.paddingM,
-        Dimens.paddingL,
-        Dimens.paddingL,
-      ),
+      actionsPadding: Dimens.dialogActionsPadding,
       actions: [
         TextButton(
           onPressed: Navigator.of(context).pop,