添加购物车🛒页面，重构计算彩票注数算法

lib/pages/lottery/lottery_cart_model.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:recook/pages/lottery/redeem_lottery_page.dart';
+import 'package:recook/utils/math/recook_math.dart';
 
 class LotteryCartModel {
   LotteryType type;
@@ -29,4 +30,36 @@ class LotteryCartStore {
         break;
     }
   }
+
+  static int countLotteryBalls(
+    LotteryType type, {
+    @required List<int> redBalls,
+    @required List<int> blueBalls,
+    @required List<int> focusedRedBalls,
+    @required List<int> focusedBlueBalls,
+  }) {
+    switch (type) {
+      case LotteryType.DOUBLE_LOTTERY:
+        if (focusedRedBalls.length >= 1 && redBalls.length > 6)
+          return RecookMath.combination(6 - focusedRedBalls.length,
+                  redBalls.length - focusedRedBalls.length) *
+              RecookMath.combination(1, blueBalls.length);
+        else
+          return RecookMath.combination(6, redBalls.length) *
+              RecookMath.combination(1, blueBalls.length);
+        break;
+      case LotteryType.BIG_LOTTERY:
+        if ((focusedRedBalls.length >= 1 || focusedBlueBalls.length >= 1) &&
+            redBalls.length > 5)
+          return RecookMath.combination(5 - focusedRedBalls.length,
+                  redBalls.length - focusedRedBalls.length) *
+              RecookMath.combination(2 - focusedBlueBalls.length,
+                  blueBalls.length - focusedBlueBalls.length);
+        else
+          return RecookMath.combination(5, redBalls.length) *
+              RecookMath.combination(2, blueBalls.length);
+        break;
+    }
+    return 0;
+  }
 }

lib/pages/lottery/lottery_cart_page.dart

@@ -0,0 +1,20 @@
+import 'package:flutter/material.dart';
+import 'package:recook/pages/lottery/widget/lottery_scaffold.dart';
+
+class LotteryCartPage extends StatefulWidget {
+  final dynamic arguments;
+  LotteryCartPage({Key key, this.arguments}) : super(key: key);
+
+  @override
+  _LotteryCartPageState createState() => _LotteryCartPageState();
+}
+
+class _LotteryCartPageState extends State<LotteryCartPage> {
+  @override
+  Widget build(BuildContext context) {
+    return LotteryScaffold(
+      title: '双色球',
+      body: SizedBox(),
+    );
+  }
+}

lib/pages/lottery/lottery_picker_page.dart

@@ -317,7 +317,21 @@ class _LotteryPickerPageState extends State<LotteryPickerPage> {
                         showToast(widget.arguments['type']
                             ? '至少选6红球1蓝球'
                             : '至少选5红球2蓝球');
-                      } else {}
+                      } else {
+                        _clearAllSelect();
+                        if (widget.arguments['type']) {
+                          LotteryCartStore.add1Shot(
+                            LotteryType.DOUBLE_LOTTERY,
+                            LotteryCartModel(
+                              type: LotteryType.DOUBLE_LOTTERY,
+                              redBalls: _redBalls,
+                              blueBalls: _blueBalls,
+                              focusedRedBalls: _focusedRedBalls,
+                              focusedBlueBalls: _focusedBlueBalls,
+                            ),
+                          );
+                        }
+                      }
                     },
                     shape: RoundedRectangleBorder(
                       borderRadius: BorderRadius.horizontal(
@@ -388,25 +402,15 @@ class _LotteryPickerPageState extends State<LotteryPickerPage> {
   }
 
   _countLotteryShot() {
-    if (widget.arguments['type']) {
-      if (_focusedRedBalls.length >= 1 && _redBalls.length > 6)
-        lotteryShots = RecookMath.combination(6 - _focusedRedBalls.length,
-                _redBalls.length - _focusedRedBalls.length) *
-            RecookMath.combination(1, _blueBalls.length);
-      else
-        lotteryShots = RecookMath.combination(6, _redBalls.length) *
-            RecookMath.combination(1, _blueBalls.length);
-    } else {
-      if ((_focusedRedBalls.length >= 1 || _focusedBlueBalls.length >= 1) &&
-          _redBalls.length > 5)
-        lotteryShots = RecookMath.combination(5 - _focusedRedBalls.length,
-                _redBalls.length - _focusedRedBalls.length) *
-            RecookMath.combination(2 - _focusedBlueBalls.length,
-                _blueBalls.length - _focusedBlueBalls.length);
-      else
-        lotteryShots = RecookMath.combination(5, _redBalls.length) *
-            RecookMath.combination(2, _blueBalls.length);
-    }
+    lotteryShots = LotteryCartStore.countLotteryBalls(
+      widget.arguments['type']
+          ? LotteryType.DOUBLE_LOTTERY
+          : LotteryType.BIG_LOTTERY,
+      redBalls: _redBalls,
+      blueBalls: _blueBalls,
+      focusedRedBalls: _focusedRedBalls,
+      focusedBlueBalls: _focusedBlueBalls,
+    );
 
     setState(() {});
   }

lib/utils/app_router.dart

@@ -26,6 +26,7 @@ import 'package:recook/pages/home/widget/goods_hot_list_page.dart';
 import 'package:recook/pages/home/widget/goods_list_temp_page.dart';
 import 'package:recook/pages/login/wechat_bind_page.dart';
 import 'package:recook/pages/login/wechat_input_invitecode_page.dart';
+import 'package:recook/pages/lottery/lottery_cart_page.dart';
 import 'package:recook/pages/lottery/lottery_help_page.dart';
 import 'package:recook/pages/lottery/lottery_history_page.dart';
 import 'package:recook/pages/lottery/lottery_order_detail_page.dart';
@@ -320,6 +321,9 @@ class RouteName {
 
   ///彩票订单详情
   static const String LOTTERY_ORDER_DETAIL_PAGE = "/LotteryOrderDetailPage";
+
+  ///彩票购物车
+  static const String LOTTERY_CART_PAGE = "/LotteryCartPage";
 }
 
 typedef RouteBuilder = Widget Function(BuildContext context,
@@ -629,6 +633,9 @@ final Map<String, RouteBuilder> _routes = {
   RouteName.LOTTERY_ORDER_PAGE: (context, {arguments}) => LotteryOrderPage(),
   RouteName.LOTTERY_ORDER_DETAIL_PAGE: (context, {arguments}) =>
       LotteryOrderDetailPage(arguments: arguments),
+      RouteName.LOTTERY_CART_PAGE:(context,{arguments})=> LotteryCartPage(
+        arguments:arguments
+      ),
 };
 
 ///  应用中路由跳转