migrate: material 3

lib/view/widget/card_dialog.dart

@@ -13,7 +13,8 @@ class CardDialog extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return AlertDialog(
-      contentPadding: padding ?? const EdgeInsets.fromLTRB(24, 17, 24, 7),
+      contentPadding: padding,
+      actionsPadding: const EdgeInsets.all(7),
       shape: const RoundedRectangleBorder(
         borderRadius: BorderRadius.all(Radius.circular(20.0)),
       ),

lib/view/widget/picker.dart

@@ -1,13 +1,18 @@
 import 'package:flutter/material.dart';
 
-Widget buildPicker(List<Widget> items, Function(int idx) onSelected) {
+Widget buildPicker(
+  List<Widget> items,
+  Function(int idx) onSelected, {
+  double height = 157,
+}) {
+  final pad = (height - 37) / 2;
   return SizedBox(
-    height: 111,
+    height: height,
     child: Stack(
       children: [
         Positioned(
-          top: 36,
-          bottom: 36,
+          top: pad,
+          bottom: pad,
           left: 0,
           right: 0,
           child: Container(
@@ -20,7 +25,7 @@ Widget buildPicker(List<Widget> items, Function(int idx) onSelected) {
         ),
         ListWheelScrollView.useDelegate(
           itemExtent: 37,
-          diameterRatio: 1.2,
+          diameterRatio: 2.7,
           controller: FixedExtentScrollController(initialItem: 0),
           onSelectedItemChanged: (idx) => onSelected(idx),
           physics: const FixedExtentScrollPhysics(),

lib/view/widget/round_rect_card.dart

@@ -1,16 +1,20 @@
 import 'package:flutter/material.dart';
 
 class RoundRectCard extends StatelessWidget {
-  const RoundRectCard(this.child, {Key? key}) : super(key: key);
+  const RoundRectCard(this.child, {Key? key, this.color}) : super(key: key);
 
   final Widget child;
+  final Color? color;
 
   @override
   Widget build(BuildContext context) {
     return Card(
+      key: key,
       clipBehavior: Clip.antiAlias,
+      color: color,
       shape: const RoundedRectangleBorder(
-          borderRadius: BorderRadius.all(Radius.circular(17))),
+        borderRadius: BorderRadius.all(Radius.circular(17)),
+      ),
       child: child,
     );
   }