support setting navigation style when showing full page selections

example/lib/features_multi/multi_page.dart

@@ -1,5 +1,6 @@
-import 'package:flutter/material.dart';
 import 'package:awesome_select/awesome_select.dart';
+import 'package:flutter/material.dart';
+
 import '../choices.dart' as choices;
 
 class FeaturesMultiPage extends StatefulWidget {
@@ -29,6 +30,7 @@ class _FeaturesMultiPageState extends State<FeaturesMultiPage> {
           choiceItems: choices.months,
           modalType: S2ModalType.fullPage,
           onChange: (selected) => setState(() => _month = selected.value),
+          modalNavigatorType: S2ModalNavigatorType.cupertino,
         ),
         const SizedBox(height: 7),
       ],

example/lib/features_single/single_page.dart

@@ -29,6 +29,7 @@ class _FeaturesSinglePageState extends State<FeaturesSinglePage> {
           selectedValue: _month,
           choiceItems: choices.months,
           onChange: (selected) => setState(() => _month = selected.value),
+          modalNavigatorType: S2ModalNavigatorType.cupertino,
         ),
         const SizedBox(height: 7),
       ],

lib/src/model/modal_config.dart

@@ -1,6 +1,8 @@
 import 'dart:ui';
+
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
+
 import './modal_theme.dart';
 
 /// Target to open choices list
@@ -15,12 +17,23 @@ enum S2ModalType {
   bottomSheet,
 }
 
+enum S2ModalNavigatorType {
+  /// material, with zooming animation by default
+  material,
+
+  /// cupertino, with sliding animation by default
+  cupertino,
+}
+
 /// Modal configuration
 @immutable
 class S2ModalConfig with Diagnosticable {
   /// Modal type to display choices
   final S2ModalType type;
 
+  /// Modal navigator type: material or cupertino
+  final S2ModalNavigatorType navigatorType;
+
   /// Use different title with the trigger widget title
   final String? title;
 
@@ -82,6 +95,7 @@ class S2ModalConfig with Diagnosticable {
   /// Create modal configuration
   const S2ModalConfig({
     this.type = S2ModalType.fullPage,
+    this.navigatorType = S2ModalNavigatorType.material,
     this.title,
     this.useHeader = true,
     this.useConfirm = false,
@@ -138,10 +152,12 @@ class S2ModalConfig with Diagnosticable {
     bool? barrierDismissible,
     Color? barrierColor,
     S2ModalStyle? style,
+    S2ModalNavigatorType? navigatorType,
     S2ModalHeaderStyle? headerStyle,
   }) {
     return S2ModalConfig(
       type: type ?? this.type,
+      navigatorType: navigatorType ?? this.navigatorType,
       title: title ?? this.title,
       useHeader: useHeader ?? this.useHeader,
       useConfirm: useConfirm ?? this.useConfirm,
@@ -173,6 +189,7 @@ class S2ModalConfig with Diagnosticable {
 
     return copyWith(
       type: other.type,
+      navigatorType: other.navigatorType,
       title: other.title,
       useHeader: other.useHeader,
       useConfirm: other.useConfirm,

lib/src/widget/s2_state.dart

@@ -1,5 +1,6 @@
 import 'package:awesome_select/awesome_select.dart';
 import 'package:collection/collection.dart' show ListEquality;
+import 'package:flutter/cupertino.dart' show CupertinoPageRoute;
 import 'package:flutter/material.dart';
 
 import '../choices_empty.dart';
@@ -698,7 +699,9 @@ abstract class S2State<T> extends State<SmartSelect<T>> {
       case S2ModalType.fullPage:
         confirmed = await (Navigator.push(
           context,
-          MaterialPageRoute(builder: (_) => modal),
+          modalConfig.navigatorType == S2ModalNavigatorType.material
+              ? MaterialPageRoute(builder: (_) => modal)
+              : CupertinoPageRoute(builder: (_) => modal),
         ));
         break;
       case S2ModalType.bottomSheet:

lib/src/widget/smart_select.dart

@@ -385,6 +385,7 @@ class SmartSelect<T> extends StatefulWidget {
     S2ModalStyle? modalStyle,
     S2ModalHeaderStyle? modalHeaderStyle,
     S2ModalType? modalType,
+    S2ModalNavigatorType? modalNavigatorType,
     String? modalTitle,
     bool? modalConfirm,
     bool? modalHeader,
@@ -460,6 +461,7 @@ class SmartSelect<T> extends StatefulWidget {
           ),
       modalConfig: defaultModalConfig.merge(modalConfig).copyWith(
             type: modalType,
+            navigatorType: modalNavigatorType,
             title: modalTitle,
             filterHint: modalFilterHint,
             filterAuto: modalFilterAuto,
@@ -708,6 +710,7 @@ class SmartSelect<T> extends StatefulWidget {
     S2ModalStyle? modalStyle,
     S2ModalHeaderStyle? modalHeaderStyle,
     S2ModalType? modalType,
+    S2ModalNavigatorType? modalNavigatorType,
     String? modalTitle,
     bool? modalConfirm,
     bool? modalHeader,
@@ -783,6 +786,7 @@ class SmartSelect<T> extends StatefulWidget {
           ),
       modalConfig: defaultModalConfig.merge(modalConfig).copyWith(
             type: modalType,
+            navigatorType: modalNavigatorType,
             title: modalTitle,
             filterHint: modalFilterHint,
             filterAuto: modalFilterAuto,