test(e2e): mobile 视口测试 (375x812) + 扩展登录态路由

完整测试覆盖 (49 路由, 0 崩溃):
- 公开 desktop: 18/18 ✓
- 登录态 desktop: 17/17 ✓ (含 orderdetail/paynow/view-ticket/ocr-scan/renew-*)
- mobile 视口: 14/14 ✓ (仅 /me 4px RenderFlex 溢出, 无害布局警告)

修复汇总 (本轮自动化发现+修复):
1. download Scrollbar 缺 ScrollPosition -> primary:true
2. contact-stores initState dispose 后 setState -> mounted 保护
3. buy-service onGenerateRoute pathElements 越界 RangeError -> 长度检查
4. add_remove_button/shopping_cart_* cartInfo 误加 ! (nullfix 脚本)
5. checkout table_token(tableNumber!) 无判空

TODO.md

@@ -0,0 +1,250 @@
+# TODO — Flutter Wisetronic Dart 3 空安全迁移
+
+> ## ✅ Web 构建已成功！（2026-08-01）
+> **`flutter build web --no-tree-shake-icons` → ✓ Built build/web/（main.dart.js 4.5M）**
+> - `dart analyze lib`: 仅剩 **6 error**，全部在 `utils/util_io.dart`（原生路径，Web 已排除，见 §5 延后）。
+> - Web 可达错误: **0**。
+> - 峰值 2374 → 6（全部 util_io 原生）。0 语法损坏。分支 `dev2`。
+> - 构建脚本: `./build_web.sh`（构建）/ `./build_web.sh run`（Chrome 运行）。
+> - **关键修复**: `cross_file` override 到 `0.3.4+2`（旧版 0.3.1+4 用了 Dart3 移除的 `UnmodifiableUint8ListView`；0.3.5+ 需 Dart 3.10）。
+
+---
+
+## 0. 快速恢复（Resume 起点）
+
+```bash
+cd /Users/peima/StudioProjects/flutter_wisetronic
+git log --oneline -1                       # 确认在最新提交
+dart analyze lib | tail -5                 # 当前: 仅 6 error(util_io.dart)
+./build_web.sh                             # 构建: ✓ Built build/web/
+./build_web.sh run                         # Chrome 运行调试
+
+# 重跑自动修复脚本（安全，带损坏自检，可随时跑）—— 已无 web 可达错误，通常无需再跑
+python3 tools/nullfix.py --max-rounds 12
+```
+
+**核心原则**：每次改动后用 `dart analyze lib | grep -cE '\s+error\s+-'` 数错误；脚本若报"检测到语法损坏"会自动中止，`git checkout -- lib` 回滚。
+
+---
+
+## 1. 剩余错误分布（118 个）
+
+| 规则 | 数量 | 说明 |
+|------|------|------|
+| `unchecked_use_of_nullable_value` | 44 | 可空值当非空用（方法调用/条件/迭代器，多为多行） |
+| `invalid_assignment` | 34 | 赋值类型不匹配（复杂表达式） |
+| `argument_type_not_assignable` | 22 | 参数类型不匹配（三元/比较/Map字面量） |
+| `return_of_invalid_type_from_closure` | 4 | 闭包返回类型 |
+| `undefined_getter` | 3 | 多为 `.buttonColor`（Flutter 3 移除） |
+| `return_of_invalid_type` | 3 | 函数 `return null` 但返回类型非空 |
+| `undefined_named_parameter` | 2 | |
+| `undefined_method` | 2 | |
+| `creation_with_non_type` | 2 | 类名拼错（util_io 内） |
+| `extra_positional_arguments_could_be_named` | 1 | |
+| `body_might_complete_normally` | 1 | |
+
+**错误最多的文件**（详细见 `dart analyze lib`）：
+
+```
+ 6  utils/util_io.dart                 ← 延后（仅原生，Web 构建已排除）
+ 5  widgets/desktop/desktop_edit_address.dart   ← .trim() 多行（见 §3，已知修法）
+ 5  widgets/mobile/mobile_edit_address.dart     ← 同上
+ 5  widgets/general/add_remove_button.dart
+ 5  widgets/general/parabolic_animation_widget.dart
+ 5  widgets/general/sliding_up_panel.dart
+ 4  widgets/desktop/desktop_me.dart
+ 4  widgets/mobile/mobile_attribute_selection.dart
+ 4  widgets/mobile/mobile_order_detail.dart
+ 3  widgets/desktop/desktop_coupons.dart / desktop_my_support / desktop_order_detail / shop_products
+ 3  widgets/general/animation_point_manager / popup_animation_widget
+ 3  widgets/mobile/mobile_coupons / mobile_me / mobile_my_support / mobile_orders / shopping_cart_bar
+ 2  约 12 个文件（blog/orders/product_item/shopping_cart 等）
+ 1  约 25 个文件（单点错误）
+```
+
+---
+
+## 2. 推荐处理顺序
+
+1. **edit_address（5+5）** — 已知修法，见 §3，最快。
+2. **parabolic/popup_animation（5+3）** — `late` 字段已修，可能还有 unchecked_use（offset 计算方法调用），手动看。
+3. **sliding_up_panel（5）** — 第三方面板 widget 适配，手动。
+4. **add_remove_button（5）** — badges 相关，手动。
+5. **散落的 2-error / 1-error 文件** — 用 `dart analyze lib/<file>` 逐个看，多为加 `!`。
+6. **util_io.dart（6）** — 最后处理（见 §5），不影响 Web 构建。
+
+**目标**：先清掉 Web 可达错误（`flutter build web` 的 112），让 Web 能跑；`util_io` 原生路径可延后。
+
+---
+
+## 3. 已知具体修法（直接套用）
+
+### 3.1 edit_address `.trim()` 多行（desktop + mobile，各 5 处）
+错误：`A nullable expression can't be used to invoke 'trim'`。代码结构：
+```dart
+validator: (String? value) {
+  if (value          // ← value 是 String?
+      .trim()
+      .isEmpty) {
+```
+**修法**：把 `if (value` 行改成 `if (value!`。
+```python
+# 上次脚本 bug：用了 rstrip() 应该用 strip()。正确版：
+for p in ['lib/widgets/desktop/desktop_edit_address.dart','lib/widgets/mobile/mobile_edit_address.dart']:
+    lines=open(p).read().split('\n'); n=0
+    for i in range(len(lines)):
+        if lines[i].strip()=='if (value' and lines[i+1].lstrip().startswith('.trim()'):
+            lines[i]=lines[i].rstrip()+'!'; n+=1   # 注意 rstrip() 保留前导缩进
+    open(p,'w').write('\n'.join(lines))
+```
+（`.buttonColor`→`.colorScheme.primary` 已在两个文件修好。）
+
+### 3.2 通用模式（手动加 `!` / `?? 默认` / `== true`）
+- `String? → String` 参数：`field` → `field!`（确认运行时非空）。
+- `num?/int?/double?` 比较：`subtotal > minPrice` → `subtotal > minPrice!` 或 `(minPrice ?? 0)`。
+- `bool?` 当条件：`if (x)` → `if (x == true)`；`if (!x)` → `if (x != true)`。
+- `return null;` 但返回类型非空：把函数返回类型加 `?`（如 `CategoryProducts? foo()`）。
+- 局部变量赋值 nullable：声明加 `?`（如 `Map<String,dynamic>? x = ...`），下游 nullfix 会补 `!`。
+- 多行方法调用 `.toUpperCase()` / `.trim()`：接收者在上一行末尾，在该行末尾加 `!`。
+
+### 3.3 可复用的定向脚本（一次性，贴进 bash 跑）
+
+**a) 条件修复（analyzer 驱动，只修简单 `if (chain)`）** — 已用过，安全：
+```python
+python3 -c "
+import re,subprocess
+ERR=re.compile(r'\s+error\s+-\s+([\w/.\-]+):(\d+):(\d+)\s+-\s+(.*?)\s+-\s+([a-z_]+)\s*\$')
+pat=re.compile(r'^(\s*if \()(!?)([\w.!\[\]]+)(\)\s*\{?\s*)\$')
+out=subprocess.run(['dart','analyze','lib'],capture_output=True,text=True).stdout
+tg={}
+for ln in out.splitlines():
+    m=ERR.match(ln)
+    if m and 'used as a condition' in m.group(4): tg.setdefault('lib/'+m.group(1),set()).add(int(m.group(2)))
+n=0
+for p,ls in tg.items():
+    L=open(p).read().split('\n');ch=False
+    for i,x in enumerate(L,1):
+        if i in ls:
+            m=pat.match(x.rstrip('\n'))
+            if m: L[i-1]=m.group(1)+m.group(3)+(' != true' if m.group(2) else ' == true')+m.group(4);ch=True;n+=1
+    if ch: open(p,'w').write('\n'.join(L))
+print('fixed',n)
+"
+```
+
+**b) 局部变量改可空（严格类型，已验证安全）** — 跑完再 `python3 tools/nullfix.py` 吃级联：
+```python
+python3 -c "
+import re,subprocess
+ERR=re.compile(r'\s+error\s+-\s+([\w/.\-]+):(\d+):(\d+)\s+-\s+(.*?)\s+-\s+([a-z_]+)\s*\$')
+NAMEQ=re.compile(r\"'([^']+)'\"); TYPE=r'(?:[A-Z]\w*(?:<[^;]*>)?|int|double|String|bool|num|dynamic|List<[^;]*>|Map<[^;]*>|Set<[^;]*>)'
+out=subprocess.run(['dart','analyze','lib'],capture_output=True,text=True).stdout;tg={}
+for ln in out.splitlines():
+    m=ERR.match(ln)
+    if m and m.group(5)=='not_assigned_potentially_non_nullable_local_variable':
+        nm=NAMEQ.search(m.group(4))
+        if nm: tg.setdefault('lib/'+m.group(1),[]).append((int(m.group(2)),nm.group(1)))
+dp=re.compile(r'^(\s+(?:final\s+|const\s+)?)('+TYPE+r')\s+(\w+)\s*;\s*\$');n=0
+for p,it in tg.items():
+    L=open(p).read().split('\n');ch=False;done=set()
+    for ul,nm in it:
+        if (ul,nm) in done: continue
+        done.add((ul,nm))
+        for i in range(ul-2,-1,-1):
+            m=dp.match(L[i])
+            if m and m.group(3)==nm and '?' not in m.group(2): L[i]=m.group(1)+m.group(2)+'? '+nm+';';ch=True;n+=1;break
+    if ch: open(p,'w').write('\n'.join(L))
+print('fixed',n)
+"
+```
+
+---
+
+## 4. 工具脚本说明（`tools/`）
+
+### `tools/nullfix.py` — 主力自动修复
+```bash
+python3 tools/nullfix.py              # 修整个 lib，默认 5 轮
+python3 tools/nullfix.py --max-rounds 12
+python3 tools/nullfix.py lib/widgets/mobile/shop.dart   # 只修单文件
+```
+- 每轮重新 `dart analyze lib`，按 error 的 (file,line,col) 精确定位修改。
+- **带腐败自检**：每轮后检测 `expected_token`/`missing_identifier`，一旦 >0 立即中止并提示 `git diff`。
+- 已实现的 handler：
+  - `insert_bang`：成员访问/方法调用/迭代器/return 加 `!`（按 analyzer 分类）
+  - `insert_arg_bang`：`argument_type`/`invalid_assignment` 在参数值末尾加 `!`（值必须是简单标识符链 `[\w.\[\]()!]`，含运算符/空格跳过）
+  - `late` 实例字段、参数空安全、field-formal 字段空安全
+  - `missing_default_value_for_parameter`、`@required`→`required` 已并入
+- **已禁用的危险 handler**：基于正则的 `if(x)`→`if(x==true)`（曾破坏 89 文件）。条件修复改用 §3.3a 的 analyzer 驱动版。
+- **已知边界**：多行表达式（接收者跨行）、含空格/逗号的函数调用参数、三元/比较表达式 → 跳过，需手动。
+
+### `tools/badge_migrate.py` — 未验证，**已不需要**
+badges 3.x 迁移已手动完成（`badgeStyle`/`badgeAnimation`），此脚本可忽略/删除。
+
+---
+
+## 5. 延后项
+
+### `lib/utils/util_io.dart`（6 error，仅原生）
+- 通过 `dart.library.html` 条件导入从 **Web 构建中排除**，不影响 `flutter build web`。
+- 错误来自 `flutter_local_notifications` v17 API 变更：
+  - `IOSInitializationSettings` / `IOSNotificationDetails` → v17 改名（`DarwinInitializationSettings` / `DarwinNotificationDetails`）
+  - `onSelectNotification` 参数已移除
+  - `extra_positional_arguments`（构造参数变化）
+  - `body_might_complete_normally`（`Future<void>` 缺 return）
+- 原生（Android/iOS）构建时才需要修。Web 不阻塞。
+
+---
+
+## 6. 关键上下文 / 决策（避免踩坑）
+
+- **`late` 用于实例字段**：避免模型 `fromJson` 初始化列表 + State 类的级联错误。模型字段置为可空，调用点加 `!`。
+- **脚本必须 analyzer 驱动**：盲目正则会损坏代码（如 `return? item;`、`this.?field`）。`nullfix.py` 用 analyzer 的列/列定位 + 腐败自检是关键。
+- **badges 实际解析 3.2.0**（不是 2.0.3）：参数是 `badgeStyle:`/`badgeAnimation:`（不是 `badgeColor`/`animationType`/`animation`）。
+- **pinput 实际 5.0.2**：类名 `Pinput`（非 `PinPut`），导入 `package:pinput/pinput.dart`，`length`/`onCompleted`/`defaultPinDecoration`。
+- **youtube_player_iframe 5.2.2**：`YoutubePlayerController.fromVideoId(videoId:, startSeconds:, params:)`。
+- **BreadCrumb.route 已改可空**：`String? route`，调用点 `BreadCrumb(X, null)` 合法。
+- **e-Transfer**：Stripe 已全移除，付款走 `payment@wisetronic.com`，备注写 `R#<receipt.id>`。
+- **搜索框**：自写轻量 `lib/widgets/general/search_bar.dart`（非第三方包）。
+- **不升级全局 Flutter SDK**：用本地 Flutter 3.29.3 / Dart 3.7.2。
+
+## 7. 提交历史（基线 f8a90ad 之后）
+
+```
+最新  phase3: mobile/shop clean ... 131->118   ← resume 起点
+     phase3: checkout files clean ... 142->131
+     phase3: fix attribute widgets ... ~30 fixed
+     phase3: FIX arg-bang regex (missing \]) ... 235->183   ← 关键 bug 修复
+     ...（共约 28 个 phase3 提交）
+f8a90ad  基线
+```
+
+## 8. 最终验收
+
+```bash
+flutter build web        # 目标：无 error，生成 build/web
+flutter run -d chrome    # 目标：能打开、首页/商品/购物车/结账流程跑通
+```
+
+---
+
+## 9. 运行时问题（应用已能运行，以下为后续优化，非阻塞）
+
+应用 `flutter run -d chrome` 已成功启动并加载首页/API 数据/数据库。控制台有以下运行时警告/异常：
+
+### 9.1 Scrollbar 缺 ScrollPosition（真实，影响滚动条显示）
+4 个 `Scrollbar(` 未配 `controller`，新版 Flutter 的 Scrollbar 找不到 ScrollPosition：
+- `lib/pages/home.dart:101` — ✅ 已修：给 `SingleChildScrollView` 加 `primary: true`
+- `lib/pages/blog.dart:24` — 子是 `DesktopBlog`（自定义组件）
+- `lib/pages/download.dart:63` — 子是 `DesktopDownloadApps`（自定义组件）
+- `lib/widgets/desktop/shop.dart:137` — 包裹 `NotificationListener`
+
+后 3 处的子是自定义组件，需让内部 ListView/ScrollView 暴露 controller（设 `primary: true`）或 Scrollbar 改用 `NotificationListener` 关联。**仅影响滚动条渲染，不影响内容加载/显示。**
+
+### 9.2 CustomersLogo setState-after-dispose（小 bug）
+`lib/widgets/desktop/desktop_customers_logo.dart` 的 `Timer.periodic`（每 10s 刷新 logo）未在 `dispose()` 里 `cancel()`，组件卸载后 timer 仍触发 `setState`。建议在 `dispose` 里 `timer?.cancel()`。**热重载时易触发，干净启动偶发。**
+
+### 9.3 `_business` LateInitializationError（热重载假象）
+`_business` 是店铺页面组件（`shop_promote.dart`/`shop.dart` 等）的 `late Business` 字段。热重载重建 widget 树时字段状态丢失触发，**干净启动（浏览器刷新 Cmd+R）不会出现**。
+
+> **验证方式**：在浏览器里 Cmd+R 刷新页面（而非热重载），9.2/9.3 类异常应消失，仅剩 9.1 的滚动条警告。

UPGRADE_NOTES.md

@@ -0,0 +1,55 @@
+# flutter_wisetronic 升级日志
+
+## 目标
+- 升级到 Dart 3 强制空安全（目标 SDK：本机 Flutter 3.29.3 / Dart 3.7.2，不升级全局）
+- 移除 Stripe 收款，改为页面展示 e-transfer email 让客户自行 e-transfer 付款
+- 第一阶段：能编译、Web 能跑起来（暂不美化）
+
+## 关键决策
+- 目标版本：Flutter 3.29.3 / Dart 3.7.2（钉定本机，不动全局）
+- e-transfer 邮箱：`payment@wisetronic.com`
+- 提醒客户在 e-transfer remark 里写 `R#<receipt.id>` 以便自动化处理订单
+- 搜索框：自写轻量 Web 搜索组件替换 flappy_search_bar
+- Dart 3 已移除 `dart migrate`，空安全迁移用手工 + IDE 修复
+
+## 阶段
+- [x] 阶段 0：基线 & 锁版本
+- [x] 阶段 1：去掉 Stripe
+- [x] 阶段 2：依赖替换与升级
+- [ ] 阶段 3：空安全迁移
+- [ ] 阶段 4：Web 跑起来
+
+---
+
+## 改动记录
+
+### 阶段 0
+- 创建 UPGRADE_NOTES.md
+- pubspec.yaml: environment sdk `>=2.7.0 <3.0.0` → `>=3.0.0 <4.0.0`，flutter `>=3.29.0`
+
+### 阶段 1 — 去掉 Stripe（已完成）
+- 删除: stripe_pay_web.dart, stripe_pay.dart, desktop/mobile_stripe_pay_web.dart, stripe_payment_method.dart
+- pubspec: 移除 stripe_payment + stripe_sdk(git)
+- user.dart: 移除 stripePaymentMethods 字段与解析
+- utils.dart: 移除 createOrUpdateStripePaymentMethod / stripePaymentIntent / stripeChargedSuccess
+- util_web.dart / util_io.dart: goPayment 的 stripe/native 分支 → 跳转 ETransferPay
+- desktop/mobile_pay_now.dart: 移除“已有卡片”区块与 nativePay 死逻辑，简化列表索引
+- desktop/mobile_my_cards.dart: 重写为 e-Transfer 说明页（保留路由入口）
+- constants.dart: 新增 ETRANSFER_EMAIL(payment@wisetronic.com) 与 REMARK_PREFIX(R#)
+- 新增 lib/widgets/general/e_transfer_pay.dart: 展示邮箱 + 提醒备注写 R#<orderId>
+- 保留: PAYMENT_METHOD_CODE_STRIPE='stripe'(API 仍返回该 code，路由到 e-Transfer)；payment_platform.dart 的 'stripe' 显示名(后续美化时调整)
+
+### 阶段 2 — 依赖替换与升级（已完成）
+**flutter pub get 成功解析 178 个依赖。**
+- 升级到 null-safe 最新版：dio ^5.7、cached_network_image ^3.4、url_launcher ^6.3、path_provider ^2.1、image_picker ^1.1、google_maps_flutter ^2.9、geolocator ^12、youtube_player_iframe ^5.2、flutter_local_notifications ^17、uuid ^4、fluttertoast ^8.2、badges ^3、carousel_slider ^5、percent_indicator ^4.2.3、photo_view ^0.15、toggle_switch ^2.3、pinput ^5、email_validator ^3、responsive_builder ^0.7、flutter_redux ^0.10、fluro ^2.0.5、font_awesome_flutter ^10、flutter_spinkit ^5.2、flutter_markdown ^0.7、url_strategy ^0.3、universal_io/html
+- 删除(0引用或无 null-safe 版)：splashscreen(死代码)、flappy_search_bar、searchable_dropdown、share、platform_detect、flutter_inappwebview、countdown、gender_selection、flutter_dash(死 import)、smooth_star_rating、hovering、ffi
+- 新增：flutter_rating_bar ^4.0
+- 停维但有 null-safe 版→暂留(Phase 5 再换)：pull_to_refresh(→smart_refresher)、hive/hive_flutter(→hive_ce)、catcher ^0.8(→catcher2)
+- 新建 null-safe 自定义组件替代废弃包(API 兼容, 调用方仅改 import)：
+  - lib/utils/countdown.dart (CountDown.stream)
+  - lib/widgets/general/hover_widget.dart (HoverWidget)
+  - lib/widgets/general/gender_selection.dart (Gender 枚举 + GenderSelection)
+  - lib/widgets/general/smooth_star_rating.dart (SmoothStarRating)
+  - lib/widgets/general/search_bar.dart (轻量 Web 搜索 SearchBar + SearchBarController, 含 replayLastSearch 分页)
+- main.dart：删除未使用的 _buildBody(SplashScreen) 与 _to 字段
+- ⚠️ 待 Phase 3：API 升级破坏性变更(dio5/badges3/toggle_switch2/pinput5/geolocator12 等用法适配) + 整库空安全迁移，按 dart analyze 驱动修复

build_web.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# Flutter Wisetronic — Web 构建脚本
+# 用法:
+#   ./build_web.sh          # 构建 release 版本到 build/web/
+#   ./build_web.sh run      # 构建并在 Chrome 中运行调试版
+#
+# 说明:
+#   - 构建(release)必须 --no-tree-shake-icons: 项目中有 24 处 IconData(codePoint)
+#     使用来自 JSON/API 的动态 code point(非 const), icon tree-shaking 无法处理。
+#     注意: --no-tree-shake-icons 仅 build 支持; flutter run(debug)不做 tree-shaking,
+#     因此 run 分支不带该 flag。
+#   - Dart SDK: 本地 Flutter 3.29.3 / Dart 3.7.2(未升级全局 SDK)。
+set -e
+cd "$(dirname "$0")"
+
+if [ "$1" = "run" ]; then
+  echo ">>> flutter run -d chrome"
+  flutter run -d chrome
+else
+  echo ">>> flutter build web --no-tree-shake-icons"
+  flutter build web --no-tree-shake-icons
+  echo ""
+  echo "✓ 构建完成: build/web/  (main.dart.js: $(du -h build/web/main.dart.js | cut -f1))"
+  echo "  本地预览: python3 -m http.server --directory build/web 8080"
+  echo "  然后访问 http://localhost:8080/"
+fi

lib/constants.dart

@@ -49,13 +49,15 @@ class Constants {
   static const String PAYMENT_METHOD_CODE_OTT_ALIPAY = 'ALIPAY';
   static const String PAYMENT_METHOD_CODE_OTT_WECHATPAY = 'WECHATPAY';
   static const String PAYMENT_METHOD_CODE_PAYPAL = 'paypal';
-  static const String PAYMENT_METHOD_CODE_STRIPE = 'stripe';
+  static const String PAYMENT_METHOD_CODE_STRIPE = 'stripe'; // API still returns 'stripe' code; now routed to e-Transfer
   static const String PAYMENT_METHOD_CODE_POD = 'payondeliverypickup';
   static const String PAYMENT_METHOD_NATIVE_PAY = 'native_pay';
 
-  static const String STRIPE_STATUS_REQUIRES_CONFIRMATION = 'requires_confirmation';
-  static const String STRIPE_CLIENT_SECRET = 'client_secret';
-  static const String STRIPE_STATUS_SUCCEDED = 'succeeded';
+  // e-Transfer (replaces Stripe)
+  static const String ETRANSFER_EMAIL = 'payment@wisetronic.com';
+  static const String ETRANSFER_QA = 'wisetronic'; // security question answer placeholder, if needed
+  // Remark template for auto-processing: R#<receipt id> (= order id)
+  static const String ETRANSFER_REMARK_PREFIX = 'R#';
 
   static const int STATUS_PENDING = 0;
   static const int STATUS_ACCEPT = 1;

lib/dialog/image_viewer.dart

@@ -3,7 +3,7 @@ import 'package:flutter/material.dart';
 import 'package:photo_view/photo_view.dart';
 
 class ImageViewer extends StatefulWidget {
-  final Key key;
+  final Key? key;
   final ImageProvider imageProvider;
 
   ImageViewer(this.imageProvider, {this.key}) :

lib/events/events.dart

@@ -87,7 +87,7 @@ class OnProductWillAddToCart {
   double price;
   String description;
   Business business;
-  GlobalKey buttonKey;
+  GlobalKey? buttonKey;
   OnProductWillAddToCart(this.product, this.selections, this.price, this.description, this.business, {this.buttonKey});
 }
 

lib/generated/intl/messages_all.dart

@@ -24,7 +24,7 @@ Map<String, LibraryLoader> _deferredLibraries = {
   'zh_CN': () => new Future.value(null),
 };
 
-MessageLookupByLibrary _findExact(String localeName) {
+MessageLookupByLibrary? _findExact(String localeName) {
   switch (localeName) {
     case 'en':
       return messages_en.messages;
@@ -59,7 +59,7 @@ bool _messagesExistFor(String locale) {
   }
 }
 
-MessageLookupByLibrary _findGeneratedMessagesFor(String locale) {
+MessageLookupByLibrary? _findGeneratedMessagesFor(String locale) {
   var actualLocale = Intl.verifiedLocale(locale, _messagesExistFor,
       onFailure: (_) => null);
   if (actualLocale == null) return null;

lib/generated/l10n.dart

@@ -15,7 +15,7 @@ import 'intl/messages_all.dart';
 class S {
   S();
   
-  static S current;
+  static S current = S();
   
   static const AppLocalizationDelegate delegate =
     AppLocalizationDelegate();
@@ -32,7 +32,7 @@ class S {
   } 
 
   static S of(BuildContext context) {
-    return Localizations.of<S>(context, S);
+    return Localizations.of<S>(context, S) ?? S.current;
   }
 
   /// `About`

lib/main.dart

@@ -14,7 +14,6 @@ import 'pages/create_online_store_1.dart';
 import 'pages/download.dart';
 import 'pages/me.dart';
 import 'package:pull_to_refresh/pull_to_refresh.dart';
-import 'package:splashscreen/splashscreen.dart';
 // import 'package:uni_links/uni_links.dart';
 
 import 'constants.dart';
@@ -34,15 +33,20 @@ import 'utils/utils.dart';
 
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
+  FlutterError.onError = (details) {
+    FlutterError.presentError(details);
+    print('CK_ERROR: ${details.exceptionAsString()}');
+    print('CK_CTX: ${details.context}');
+    print('CK_STACK: ${details.stack}');
+  };
   // Enable configureApp will cause route problem.
   // configureApp();
   setPathUrlStrategy();
   runApp(MyApp());
+  Future.delayed(Duration(seconds: 3), () => Util.devAutologin()); // DEV e2e: 延迟 3s 等 Flutter/Hive ready
 }
 
 class MyApp extends StatelessWidget {
-  String _to = '/';
-
   MyApp() {
     Routes.configure();
     Utils().init();
@@ -95,24 +99,6 @@ class MyApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
 
-    Widget _buildBody() {
-      return SplashScreen(
-        seconds: 5,
-        routeName: _to,
-        navigateAfterSeconds: Home(title: Constants.APP_TITLE,),
-        styleTextUnderTheLoader: new TextStyle(
-          fontWeight: FontWeight.bold,
-          fontSize: 20.0,
-        ),
-        imageBackground: (Image.network(Constants.BASE_API_URL + 'gallery/get-minimanager-splash/')).image,
-        backgroundColor: Colors.white,
-        onClick: () {
-
-        },
-        loaderColor: Colors.blue,
-      );
-    }
-
     return MaterialApp(
       debugShowCheckedModeBanner: Constants.DEBUG,
       navigatorKey: kIsWeb ? null : Catcher.navigatorKey,
@@ -124,7 +110,11 @@ class MyApp extends StatelessWidget {
         S.delegate,
       ],
       supportedLocales: S.delegate.supportedLocales,
-      localeResolutionCallback: (Locale locale, Iterable<Locale> supportedLocales) {
+      localeResolutionCallback: (Locale? locale, Iterable<Locale> supportedLocales) {
+        if (locale == null) {
+          store.dispatch(UpdateLocale(supportedLocales.first));
+          return supportedLocales.first;
+        }
         print('Language code: ${locale.languageCode}, Country code: ${locale.countryCode}');
         for (final supportedLocale in supportedLocales) {
           if (supportedLocale.languageCode == locale.languageCode) {
@@ -136,9 +126,9 @@ class MyApp extends StatelessWidget {
         return supportedLocales.first;
       },
       onGenerateRoute: (RouteSettings settings) {
-        final List<String> pathElements = settings.name.split('/');
+        final List<String> pathElements = settings.name?.split('/') ?? [];
         print('path elements: $pathElements');
-        if (pathElements[0] != '') {
+        if (pathElements.isEmpty || pathElements[0] != '') {
           return null;
         }
         if (pathElements[1] == 'me') {
@@ -182,12 +172,12 @@ class MyApp extends StatelessWidget {
                 ),
           );
         }
-        if (pathElements[1] == 'renew-minioffice') {
+        if (pathElements[1] == 'renew-minioffice' && pathElements.length >= 3) {
           return MaterialPageRoute(builder: (BuildContext context) =>
             RenewMiniOffice(int.parse(pathElements[2]))
           );
         }
-        if (pathElements[1] == 'buy-service') {
+        if (pathElements[1] == 'buy-service' && pathElements.length >= 4) {
           return MaterialPageRoute(builder: (BuildContext context) =>
             BuyService(int.parse(pathElements[2]), pathElements[3])
           );

lib/models/Subproduct.dart

@@ -4,9 +4,9 @@ import 'dart:convert';
 import 'package:flutter_wisetronic/models/product_attribute.dart';
 
 class Subproduct {
-  int id;
-  SimpleProduct product;
-  double quantity;
+  int? id;
+  SimpleProduct? product;
+  double? quantity;
 
   Subproduct.fromJson(Map<String, dynamic> json) :
       id = json['id'],
@@ -26,15 +26,15 @@ class Subproduct {
 }
 
 class SimpleProduct {
-  int id;
-  String name;
-  String sku;
-  double price;
-  String description;
-  String image;
-  List<ProductAttribute> productAttributes;
-  double customerLastPrice;
-  String extraData;
+  int? id;
+  String? name;
+  String? sku;
+  double? price;
+  String? description;
+  String? image;
+  List<ProductAttribute>? productAttributes;
+  double? customerLastPrice;
+  String? extraData;
 
   SimpleProduct.fromJson(Map<String, dynamic> json) :
       id = json['id'],

lib/models/address.dart

@@ -1,21 +1,21 @@
 import 'dart:convert';
 
 class Address {
-  int id;
-  String addressLine1;
-  String addressLine2;
-  String city;
-  String state;
-  String country;
-  String zip;
-  String phone;
-  String fax;
-  String email;
-  String contactName;
-  int gender;
-  String lat;
-  String lng;
-  String fullAddress;
+  int? id;
+  String? addressLine1;
+  String? addressLine2;
+  String? city;
+  String? state;
+  String? country;
+  String? zip;
+  String? phone;
+  String? fax;
+  String? email;
+  String? contactName;
+  int? gender;
+  String? lat;
+  String? lng;
+  String? fullAddress;
 
   Address.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/blog.dart

@@ -2,8 +2,8 @@
 import 'dart:convert';
 
 class Section {
-  int id;
-  String name;
+  int? id;
+  String? name;
 
   Section.fromJson(Map<String, dynamic> json) :
       id = json['id'],
@@ -21,14 +21,14 @@ class Section {
 }
 
 class Blog {
-  int id;
-  String title;
-  String body;
-  String createdAt;
-  String thumbUrl;
-  String imageUrl;
-  String videoUrl;
-  Section section;
+  int? id;
+  String? title;
+  String? body;
+  String? createdAt;
+  String? thumbUrl;
+  String? imageUrl;
+  String? videoUrl;
+  Section? section;
 
   Blog.fromJson(Map<String, dynamic> json) :
       id = json['id'],

lib/models/booking_date_time.dart

@@ -4,10 +4,10 @@ import 'dart:convert';
 import 'booking_time.dart';
 
 class BookingDateTime {
-  String viewDate;
-  int unixTime;
-  String sendTimeTip;
-  List<BookingTime> bookTimes;
+  String? viewDate;
+  int? unixTime;
+  String? sendTimeTip;
+  List<BookingTime>? bookTimes;
 
   BookingDateTime(this.viewDate, this.unixTime, this.sendTimeTip, this.bookTimes);
 

lib/models/booking_time.dart

@@ -2,9 +2,9 @@
 import 'dart:convert';
 
 class BookingTime {
-  String viewTime;
-  int unixTime;
-  String sendTimeTip;
+  String? viewTime;
+  int? unixTime;
+  String? sendTimeTip;
 
   BookingTime(this.viewTime, this.unixTime, this.sendTimeTip);
 

lib/models/business.dart

@@ -8,7 +8,7 @@ import 'product.dart';
 import 'waiting_line.dart';
 
 class QuickInput {
-  String value;
+  String? value;
   QuickInput.fromJson(Map<String, dynamic> json)
     : value = json['value'];
 
@@ -23,48 +23,48 @@ class QuickInput {
 }
 
 class Business {
-  int id;
-  String name;
-  String phone;
-  Address address;
-  String fullAddress;
-  String picUrl;
-  int status;
-  List<BusinessTime> openingTime;
-  double shippingFee;
-  double packageFee;
-  double minPrice;
-  int shippingTime;
-  int monthSales;
-  String bulletin;
-  int category;
-  bool isLike;
-  String description;
-  String policy;
-  String bannerImageUrl;
-  int todayOpen;
-  int todayClose;
-  bool showMonthlySold;
-  List<ImageUrl> slideImages;
-  List<Product> promoProducts;
-  String paypalEmail;
-  bool deliveryCanadaPost;
-  bool deliveryStoreDelivery;
-  bool deliveryPickup;
-  String currency;
-  List<WaitingLine> waitingLine;
-  bool enableWaitingLine;
-  double pointsToCreditsConversionRate;
-  String chaseXLogin;
-  String chaseTransactionKey;
-  String chaseResponseKey;
-  DistanceInfo distanceInfo;
-  int commentsCount;
-  bool forceClose;
-  bool isPublic;
-  double referrerCoupon;
-  bool instanceDelivery;
-  List<QuickInput> quickInputs;
+  int? id;
+  String? name;
+  String? phone;
+  Address? address;
+  String? fullAddress;
+  String? picUrl;
+  int? status;
+  List<BusinessTime>? openingTime;
+  double? shippingFee;
+  double? packageFee;
+  double? minPrice;
+  int? shippingTime;
+  int? monthSales;
+  String? bulletin;
+  int? category;
+  bool? isLike;
+  String? description;
+  String? policy;
+  String? bannerImageUrl;
+  int? todayOpen;
+  int? todayClose;
+  bool? showMonthlySold;
+  List<ImageUrl>? slideImages;
+  List<Product>? promoProducts;
+  String? paypalEmail;
+  bool? deliveryCanadaPost;
+  bool? deliveryStoreDelivery;
+  bool? deliveryPickup;
+  String? currency;
+  List<WaitingLine>? waitingLine;
+  bool? enableWaitingLine;
+  double? pointsToCreditsConversionRate;
+  String? chaseXLogin;
+  String? chaseTransactionKey;
+  String? chaseResponseKey;
+  DistanceInfo? distanceInfo;
+  int? commentsCount;
+  bool? forceClose;
+  bool? isPublic;
+  double? referrerCoupon;
+  bool? instanceDelivery;
+  List<QuickInput>? quickInputs;
 
   Business.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/business_time.dart

@@ -1,8 +1,8 @@
 import 'dart:convert';
 
 class BusinessTime {
-  String openTime;
-  String closeTime;
+  String? openTime;
+  String? closeTime;
 
   BusinessTime.fromJson(Map<String, dynamic> json)
     : openTime = json['open_time'],

lib/models/cart_info.dart

@@ -7,18 +7,18 @@ import 'cart_line_item.dart';
 import 'extra_fee.dart';
 
 class CartInfo {
-  int id;
-  double originPrice;
-  double discountPrice;
-  double totalPrice;
-  Business businessInfo;
-  List<CartLineItem> productList;
-  List<ExtraFee> extraFeeList;
-  List<ExtraFee> discountList;
-  int deliveryMethod;
-  String shippingMethod;
-  double amountPaid;
-  String extraData;
+  int? id;
+  double? originPrice;
+  double? discountPrice;
+  double? totalPrice;
+  Business? businessInfo;
+  List<CartLineItem>? productList;
+  List<ExtraFee>? extraFeeList;
+  List<ExtraFee>? discountList;
+  int? deliveryMethod;
+  String? shippingMethod;
+  double? amountPaid;
+  String? extraData;
 
   CartInfo.fromJson(Map<String, dynamic> json)
     : id = json['id'],
@@ -53,7 +53,7 @@ class CartInfo {
     if (productList == null) {
       productList = [item];
     } else {
-      productList.add(item);
+      productList!.add(item);
     }
 
   }
@@ -74,19 +74,19 @@ class CartInfo {
     originPrice = 0.0;
     discountPrice = 0.0;
     totalPrice = 0.0;
-    for (var i = 0; i < productList.length; i++) {
-      newTotal += productList[i].getTotalPrice();
+    for (var i = 0; i < (productList?.length ?? 0); i++) {
+      newTotal += productList![i].getTotalPrice();
     }
     originPrice = newTotal;
     totalPrice = newTotal;
-    return totalPrice;
+    return totalPrice ?? 0.0;
   }
 
   int getProductListTotalQuantity() {
     int qty = 0;
-    if (productList != null && productList.length > 0) {
-      for (var i = 0; i < productList.length; i++) {
-        qty += productList[i].quantity.round();
+    if (productList != null && productList!.length > 0) {
+      for (var i = 0; i < productList!.length; i++) {
+        qty += (productList![i].quantity ?? 0).round();
       }
     }
     return qty;

lib/models/cart_line_item.dart

@@ -6,15 +6,15 @@ import 'package:uuid/uuid.dart';
 import 'product.dart';
 
 class CartLineItem {
-  int id;
-  double unitPrice;
-  double totalPrice;
-  Product product;
-  String name;
-  String description;
-  double quantity;
-  String uuid;
-  String parentUuid;
+  int? id;
+  double? unitPrice;
+  double? totalPrice;
+  Product? product;
+  String? name;
+  String? description;
+  double? quantity;
+  String? uuid;
+  String? parentUuid;
 
   CartLineItem() {
     uuid = Uuid().v4();
@@ -48,7 +48,7 @@ class CartLineItem {
   }
 
   double getTotalPrice() {
-    totalPrice = unitPrice * quantity;
-    return totalPrice;
+    totalPrice = (unitPrice ?? 0.0) * (quantity ?? 0);
+    return totalPrice ?? 0.0;
   }
 }

lib/models/category.dart

@@ -2,8 +2,8 @@
 import 'dart:convert';
 
 class Category {
-  int id;
-  String name;
+  int? id;
+  String? name;
 
   Category.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/category_products.dart

@@ -4,12 +4,12 @@ import 'dart:convert';
 import 'product.dart';
 
 class CategoryProducts {
-  int id;
-  int businessId;
-  String name;
-  String description;
-  String iconUrl;
-  List<Product> products;
+  int? id;
+  int? businessId;
+  String? name;
+  String? description;
+  String? iconUrl;
+  List<Product>? products;
 
   CategoryProducts.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/comment.dart

@@ -4,15 +4,15 @@ import 'dart:convert';
 import 'product_image.dart';
 
 class Comment {
-  int id;
-  String contact;
-  String content;
-  int rating;
-  List<ProductImage> images;
-  String createdAt;
-  int thumbUp;
-  int thumbDown;
-  String replyFromStore;
+  int? id;
+  String? contact;
+  String? content;
+  int? rating;
+  List<ProductImage>? images;
+  String? createdAt;
+  int? thumbUp;
+  int? thumbDown;
+  String? replyFromStore;
 
   Comment.fromJson(Map<String, dynamic> json) :
       id = json['id'],

lib/models/coupon.dart

@@ -4,14 +4,14 @@ import 'dart:convert';
 import 'business.dart';
 
 class Coupon {
-  int id;
-  String code;
-  String description;
-  String expirationDate;
-  double minAmount;
-  Business store;
-  double valueAmount;
-  bool isPercentage;
+  int? id;
+  String? code;
+  String? description;
+  String? expirationDate;
+  double? minAmount;
+  Business? store;
+  double? valueAmount;
+  bool? isPercentage;
 
   Coupon.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/distance_info.dart

@@ -4,9 +4,9 @@ import 'dart:convert';
 import 'text_value.dart';
 
 class DistanceInfo {
-  TextValue duration;
-  TextValue distance;
-  String status;
+  TextValue? duration;
+  TextValue? distance;
+  String? status;
 
   DistanceInfo.fromJson(Map<String, dynamic> json)
     : duration = json['duration'] != null ? TextValue.fromJson(json['duration']) : null,

lib/models/error_message.dart

@@ -2,8 +2,8 @@
 import 'dart:convert';
 
 class ErrorMessage {
-  String code;
-  String string;
+  String? code;
+  String? string;
 
   ErrorMessage.fromJson(Map<String, dynamic> json)
     : code = json['code'],

lib/models/extra_fee.dart

@@ -3,11 +3,11 @@
 import 'dart:convert';
 
 class ExtraFee {
-  int id;
-  String name;
-  String description;
-  double rate;
-  double price;
+  int? id;
+  String? name;
+  String? description;
+  double? rate;
+  double? price;
 
   ExtraFee.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/fulfillment.dart

@@ -2,11 +2,11 @@
 import 'dart:convert';
 
 class Fulfillment {
-  int id;
-  String shippingMethod;
-  String trackingNumber;
-  String note;
-  String createdAt;
+  int? id;
+  String? shippingMethod;
+  String? trackingNumber;
+  String? note;
+  String? createdAt;
 
   Fulfillment.fromJson(Map<String, dynamic> json) :
       id = json['id'],

lib/models/gallery.dart

@@ -2,9 +2,9 @@
 import 'dart:convert';
 
 class Gallery {
-  int id;
-  String image;
-  String linkUrl;
+  int? id;
+  String? image;
+  String? linkUrl;
 
   Gallery.fromJson(Map<String, dynamic> json)
       : id = json['id'],

lib/models/group.dart

@@ -3,8 +3,8 @@
 import 'dart:convert';
 
 class Group {
-  int id;
-  String name;
+  int? id;
+  String? name;
 
   Group.fromJson(Map<String, dynamic> json) :
       id = json['id'],

lib/models/image_url.dart

@@ -1,8 +1,8 @@
 import 'dart:convert';
 
 class ImageUrl {
-  int id;
-  String imageUrl;
+  int? id;
+  String? imageUrl;
 
   ImageUrl.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/key_value.dart

@@ -1,7 +1,7 @@
 
 class KeyValue {
-  String name;
-  dynamic value;
+  String? name;
+  dynamic? value;
 
   KeyValue(this.name, this.value);
 

lib/models/located_address.dart

@@ -1,17 +1,17 @@
 import 'dart:convert';
 
 class LocatedAddress {
-  int storeId;
-  double latitude;
-  double longitude;
-  String streetNumber;
-  String streetName;
-  String city;
-  String locality;
-  String province;
-  String country;
-  String postalCode;
-  String formattedAddress;
+  int? storeId;
+  double? latitude;
+  double? longitude;
+  String? streetNumber;
+  String? streetName;
+  String? city;
+  String? locality;
+  String? province;
+  String? country;
+  String? postalCode;
+  String? formattedAddress;
 
   LocatedAddress.fromJson(Map<String, dynamic> json)
     : storeId = json['store_id'],

lib/models/order.dart

@@ -11,33 +11,33 @@ import 'fulfillment.dart';
 import 'user_position.dart';
 
 class Order {
-  int id;
-  int userId;
-  int businessId;
-  Business businessInfo;
-  CartInfo cartInfo;
-  int status;
-  double originPrice;
-  double discountPrice;
-  double totalPrice;
-  String consignee;
-  String phone;
-  String address;
-  Address shippingAddress;
-  int payMethod;
-  String remark;
-  String orderNum;
-  int bookedAt;
-  int createdAt;
-  String shippingMethod;
+  int? id;
+  int? userId;
+  int? businessId;
+  Business? businessInfo;
+  CartInfo? cartInfo;
+  int? status;
+  double? originPrice;
+  double? discountPrice;
+  double? totalPrice;
+  String? consignee;
+  String? phone;
+  String? address;
+  Address? shippingAddress;
+  int? payMethod;
+  String? remark;
+  String? orderNum;
+  int? bookedAt;
+  int? createdAt;
+  String? shippingMethod;
   String paymentStatus; // UNPAID, PAID, PARTIALPAID
-  double amountPaid;
-  List<Fulfillment> fulfillments;
-  String extraData;
-  bool hasComment;
-  double fee;
-  UserPosition shipperPosition;
-  DistanceInfo deliveryDistance;
+  double? amountPaid;
+  List<Fulfillment>? fulfillments;
+  String? extraData;
+  bool? hasComment;
+  double? fee;
+  UserPosition? shipperPosition;
+  DistanceInfo? deliveryDistance;
 
   Order.fromJson(Map<String, dynamic> json)
       : id = json['id'],
@@ -100,7 +100,7 @@ class Order {
 
   double getSubtotal() {
     double subtotal = 0.0;
-    for (CartLineItem lineItem in cartInfo.productList) {
+    for (CartLineItem lineItem in cartInfo?.productList ?? <CartLineItem>[]) {
       subtotal += lineItem.getTotalPrice();
     }
     return subtotal;

lib/models/payment_platform.dart

@@ -6,19 +6,19 @@ import 'package:flutter/cupertino.dart';
 import '../generated/l10n.dart';
 
 class PaymentPlatform {
-  int id;
-  String name;
-  String code;
-  String method;
-  String icon;
-  String xLogin;
-  String transactionKey;
-  String responseKey;
-  String squareAppId;
-  String squareAccessToken;
-  String squareLocationId;
-  String publishableKey;
-  String merchantId;
+  int? id;
+  String? name;
+  String? code;
+  String? method;
+  String? icon;
+  String? xLogin;
+  String? transactionKey;
+  String? responseKey;
+  String? squareAppId;
+  String? squareAccessToken;
+  String? squareLocationId;
+  String? publishableKey;
+  String? merchantId;
 
   PaymentPlatform(this.code);
 

lib/models/position.dart

@@ -1,7 +1,7 @@
 
 class Position {
-  final double latitude;
-  final double longitude;
+  final double? latitude;
+  final double? longitude;
 
   Position({this.latitude, this.longitude});
 

lib/models/product.dart

@@ -5,23 +5,23 @@ import 'Subproduct.dart';
 import 'product_attribute.dart';
 
 class Product {
-  int id;
-  int businessId;
-  int categoryId;
-  String name;
-  double price;
-  double regularPrice;
-  String description;
-  String detailDescription;
-  String imagePath;
-  String secondImagePath;
-  double monthSales;
-  int rate;
-  double leftNum;
-  List<ProductAttribute> productAttributes;
-  bool nonInventory;
-  String extraData;
-  List<Subproduct> subproducts;
+  int? id;
+  int? businessId;
+  int? categoryId;
+  String? name;
+  double? price;
+  double? regularPrice;
+  String? description;
+  String? detailDescription;
+  String? imagePath;
+  String? secondImagePath;
+  double? monthSales;
+  int? rate;
+  double? leftNum;
+  List<ProductAttribute>? productAttributes;
+  bool? nonInventory;
+  String? extraData;
+  List<Subproduct>? subproducts;
 
   Product(int id, int businessId, String name, double price, String description,
       String imagePath, List<ProductAttribute> productAttributes) {

lib/models/product_attribute.dart

@@ -4,14 +4,14 @@ import 'dart:convert';
 import 'product_option.dart';
 
 class ProductAttribute {
-  int id;
-  String name;
-  List<ProductOption> productOptions;
-  bool singleSelection;
-  bool byQuantity;
-  bool required;
-  String extra;
-  bool disabled;
+  int? id;
+  String? name;
+  List<ProductOption>? productOptions;
+  bool? singleSelection;
+  bool? byQuantity;
+  bool? required;
+  String? extra;
+  bool? disabled;
 
   ProductAttribute.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/product_detail.dart

@@ -8,30 +8,30 @@ import 'product_attribute.dart';
 import 'product_image.dart';
 
 class ProductDetail {
-  int id;
-  String image;
-  List<ProductImage> images;
-  String sku;
-  String name;
-  double price;
-  double regularPrice;
-  String description;
-  String description2;
-  String detailDescription;
-  double monthSales;
-  int rate;
-  double leftNum;
-  List<ProductAttribute> productAttributes;
-  bool nonInventory;
-  String extraData;
-  String purchaseNote;
-  double weight;
-  double dimentionsLength;
-  double dimentionsWidth;
-  double dimentionsHeight;
-  bool reviewsAllowed;
-  List<Category> categories;
-  List<Subproduct> subproducts;
+  int? id;
+  String? image;
+  List<ProductImage>? images;
+  String? sku;
+  String? name;
+  double? price;
+  double? regularPrice;
+  String? description;
+  String? description2;
+  String? detailDescription;
+  double? monthSales;
+  int? rate;
+  double? leftNum;
+  List<ProductAttribute>? productAttributes;
+  bool? nonInventory;
+  String? extraData;
+  String? purchaseNote;
+  double? weight;
+  double? dimentionsLength;
+  double? dimentionsWidth;
+  double? dimentionsHeight;
+  bool? reviewsAllowed;
+  List<Category>? categories;
+  List<Subproduct>? subproducts;
 
   ProductDetail.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/product_image.dart

@@ -1,8 +1,8 @@
 import 'dart:convert';
 
 class ProductImage {
-  int id;
-  String image;
+  int? id;
+  String? image;
 
   ProductImage.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/product_option.dart

@@ -2,11 +2,11 @@
 import 'dart:convert';
 
 class ProductOption {
-  int id;
-  String name;
-  double adjustAmount;
-  String extra;
-  bool disabled;
+  int? id;
+  String? name;
+  double? adjustAmount;
+  String? extra;
+  bool? disabled;
 
   ProductOption.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/shipping_rate.dart

@@ -4,9 +4,9 @@ import 'dart:convert';
 import 'package:flutter/foundation.dart';
 
 class ShippingRate {
-  String name;
-  double price;
-  List<Rate> rates;
+  String? name;
+  double? price;
+  List<Rate>? rates;
 
   ShippingRate.fromJson(Map<String, dynamic> json)
     : name = json['name'],
@@ -25,7 +25,7 @@ class ShippingRate {
           other is ShippingRate &&
           runtimeType == other.runtimeType &&
           name == other.name &&
-          price.toStringAsFixed(2) == other.price.toStringAsFixed(2) &&
+          price?.toStringAsFixed(2) == other.price?.toStringAsFixed(2) &&
           listEquals(rates, other.rates);
 
   @override
@@ -41,8 +41,8 @@ class ShippingRate {
 }
 
 class Rate {
-  String name;
-  double rate;
+  String? name;
+  double? rate;
 
   Rate.fromJson(Map<String, dynamic> json)
     : name = json['name'],
@@ -59,7 +59,7 @@ class Rate {
           other is Rate &&
           runtimeType == other.runtimeType &&
           name == other.name &&
-          rate.toStringAsFixed(2) == other.rate.toStringAsFixed(2);
+          rate?.toStringAsFixed(2) == other.rate?.toStringAsFixed(2);
 
   @override
   String toString() {

lib/models/simple_business.dart

@@ -4,9 +4,9 @@ import 'dart:convert';
 import 'address.dart';
 
 class Store {
-  int id;
-  String name;
-  Address address;
+  int? id;
+  String? name;
+  Address? address;
 
   Store.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/simple_product.dart

@@ -1,12 +1,12 @@
 import 'dart:convert';
 
 class SimpleProduct {
-  int id;
-  String name;
-  double price;
-  double regularPrice;
-  String description;
-  String imagePath;
+  int? id;
+  String? name;
+  double? price;
+  double? regularPrice;
+  String? description;
+  String? imagePath;
 
   SimpleProduct.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/stripe_payment_method.dart

@@ -1,46 +0,0 @@
-
-import 'dart:convert';
-
-class StripePaymentMethod {
-  int id;
-  String customerId;
-  String paymentMethodId;
-  String paymentMethodType;
-  String cardBrand;
-  String cardCountry;
-  int cardExpMonth;
-  int cardExpYear;
-  String cardFunding;
-  String cardLast4;
-
-  StripePaymentMethod.fromJson(Map<String, dynamic> json) :
-        id = json['id'],
-        customerId = json['customer_id'],
-        paymentMethodId = json['payment_method_id'],
-        paymentMethodType = json['payment_method_type'],
-        cardBrand = json['card_brand'],
-        cardCountry = json['card_country'],
-        cardExpMonth = json['card_exp_month'],
-        cardExpYear = json['card_exp_year'],
-        cardFunding = json['card_funding'],
-        cardLast4 = json['card_last4'];
-
-  Map<String, dynamic> toJson() => {
-    'id': id,
-    'customer_id': customerId,
-    'payment_method_id': paymentMethodId,
-    'payment_method_type': paymentMethodType,
-    'card_brand': cardBrand,
-    'card_country': cardCountry,
-    'card_exp_month': cardExpMonth,
-    'card_exp_year': cardExpYear,
-    'card_funding': cardFunding,
-    'card_last4': cardLast4,
-  };
-
-  @override
-  String toString() {
-    return json.encode(this);
-  }
-
-}

lib/models/text_value.dart

@@ -2,8 +2,8 @@
 import 'dart:convert';
 
 class TextValue {
-  String text;
-  int value;
+  String? text;
+  int? value;
 
   TextValue.fromJson(Map<String, dynamic> json)
       : text = json['text'],

lib/models/ticket.dart

@@ -4,10 +4,10 @@ import 'dart:convert';
 import 'simple_business.dart';
 
 class TicketFile {
-  int id;
-  String url;
-  String fileName;
-  String fileType;
+  int? id;
+  String? url;
+  String? fileName;
+  String? fileType;
 
   TicketFile.fromJson(Map<String, dynamic> json)
     : id = json['id'],
@@ -29,9 +29,9 @@ class TicketFile {
 }
 
 class Issue {
-  int id;
-  String msg;
-  List<TicketFile> files;
+  int? id;
+  String? msg;
+  List<TicketFile>? files;
 
   Issue.fromJson(Map<String, dynamic> json)
     : id = json['id'],
@@ -51,11 +51,11 @@ class Issue {
 }
 
 class FollowUp {
-  int id;
-  String msg;
-  String poster;
-  String createdAt;
-  List<TicketFile> files;
+  int? id;
+  String? msg;
+  String? poster;
+  String? createdAt;
+  List<TicketFile>? files;
 
   FollowUp.fromJson(Map<String, dynamic> json)
     : id = json['id'],
@@ -79,12 +79,12 @@ class FollowUp {
 }
 
 class Ticket {
-  int id;
-  Issue issue;
-  Store store;
-  List<FollowUp> followUps;
-  bool isClosed;
-  String createdAt;
+  int? id;
+  Issue? issue;
+  Store? store;
+  List<FollowUp>? followUps;
+  bool? isClosed;
+  String? createdAt;
 
   Ticket.fromJson(Map<String, dynamic> json)
     : id = json['id'],

lib/models/user.dart

@@ -1,26 +1,23 @@
 
 import 'dart:convert';
 
-import 'stripe_payment_method.dart';
-
 class User {
-  int id;
-  String username;
-  String nickname;
-  String mobile;
-  String email;
-  String avatarUrl;
-  int lastAddressId;
-  String passCode;
-  double credit;
-  double wallet;
-  int coupon;
-  int points;
-  int orderNum;
-  double pointsToCreditsConversionRate;
-  String contactNumber;
-  String flutterMiniStoreToken;
-  List<StripePaymentMethod> stripePaymentMethods;
+  int? id;
+  String? username;
+  String? nickname;
+  String? mobile;
+  String? email;
+  String? avatarUrl;
+  int? lastAddressId;
+  String? passCode;
+  double? credit;
+  double? wallet;
+  int? coupon;
+  int? points;
+  int? orderNum;
+  double? pointsToCreditsConversionRate;
+  String? contactNumber;
+  String? flutterMiniStoreToken;
 
   User.fromJson(Map<String, dynamic> json)
       : id = json['id'],
@@ -38,8 +35,7 @@ class User {
         orderNum = json['order_num'],
         pointsToCreditsConversionRate = double.parse(json['points_to_credits_conversion_rate'].toString()),
         contactNumber = json['contact_number'],
-        flutterMiniStoreToken = json['flutter_ministore_token'],
-        stripePaymentMethods = (json['stripe_payment_methods'] as List).map((e) => StripePaymentMethod.fromJson(e)).toList();
+        flutterMiniStoreToken = json['flutter_ministore_token'];
 
   Map<String, dynamic> toJson() => {
     'id': id,
@@ -58,7 +54,6 @@ class User {
     'points_to_credits_conversion_rate': pointsToCreditsConversionRate,
     'contact_number': contactNumber,
     'flutter_ministore_token': flutterMiniStoreToken,
-    'stripe_payment_methods': stripePaymentMethods,
   };
 
   @override

lib/models/user_position.dart

@@ -2,8 +2,8 @@
 import 'dart:convert';
 
 class UserPosition {
-  double lat;
-  double lng;
+  double? lat;
+  double? lng;
 
   UserPosition.fromJson(Map<String, dynamic> json) :
       lat = double.parse(json['lat'].toString()),

lib/models/waiting_line.dart

@@ -4,8 +4,8 @@ import 'dart:convert';
 import 'waiting_line_item.dart';
 
 class WaitingLine {
-  List<WaitingLineItem> waitingLines;
-  String storeSn;
+  List<WaitingLineItem>? waitingLines;
+  String? storeSn;
 
   WaitingLine.fromJson(Map<String, dynamic> json)
     : waitingLines = (json['waiting_lines'] as List).map((i) => WaitingLineItem.fromJson(i)).toList(),

lib/models/waiting_line_item.dart

@@ -1,11 +1,11 @@
 import 'dart:convert';
 
 class WaitingLineItem {
-  String deviceId;
-  String phone;
-  String createdAt;
-  int peopleCount;
-  int waitingNumber;
+  String? deviceId;
+  String? phone;
+  String? createdAt;
+  int? peopleCount;
+  int? waitingNumber;
 
   WaitingLineItem.fromJson(Map<String, dynamic> json)
     : deviceId = json['device_id'],

lib/pages/attribute_selection.dart

@@ -6,20 +6,20 @@ import '../models/business.dart';
 import '../models/product.dart';
 
 class AttributeSelection extends StatelessWidget {
-  final Product product;
-  final Business business;
-  final GlobalKey startKey;
+  final Product? product;
+  final Business? business;
+  final GlobalKey? startKey;
 
-  const AttributeSelection({Key key, this.product, this.business, this.startKey}) : super(key: key);
+  const AttributeSelection({Key? key, this.product, this.business, this.startKey}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
         ScreenTypeLayout(
-          mobile: MobileAttributeSelection(product: product, business: business, startKey: startKey,),
-          tablet: MobileAttributeSelection(product: product, business: business, startKey: startKey,),
-          desktop: MobileAttributeSelection(product: product, business: business, startKey: startKey,),
+          mobile: MobileAttributeSelection(product: product!, business: business!, startKey: startKey,),
+          tablet: MobileAttributeSelection(product: product!, business: business!, startKey: startKey,),
+          desktop: MobileAttributeSelection(product: product!, business: business!, startKey: startKey,),
         ),
     );
   }

lib/pages/blog.dart

@@ -8,10 +8,10 @@ import '../widgets/desktop/desktop_blog.dart';
 import '../widgets/mobile/mobile_blog.dart';
 
 class Blog extends StatelessWidget {
-  final Key key;
+  final Key? key;
   final int businessId;
 
-  const Blog({this.key, int businessId}) :
+  const Blog({this.key, int? businessId}) :
       businessId = businessId ?? Constants.BUSINESS_ID;
 
   @override
@@ -22,7 +22,7 @@ class Blog extends StatelessWidget {
           mobile: MobileBlog(businessId: businessId,),
           tablet: DesktopBlog(businessId: businessId,),
           desktop: Scrollbar(
-            isAlwaysShown: true,
+            thumbVisibility: true,
             child: DesktopBlog(businessId: businessId,),
           ),
         ),

lib/pages/buy_service.dart

@@ -19,10 +19,10 @@ import '../widgets/mobile/mobile_renew_license.dart';
 class BuyService extends StatefulWidget {
   final int gid;
   final String serviceName;
-  final String domain;
+  final String? domain;
   final int sid;
 
-  const BuyService(this.gid, this.serviceName, {Key key, this.domain, this.sid = 0}) :
+  const BuyService(this.gid, this.serviceName, {Key? key, this.domain, this.sid = 0}) :
       super(key: key);
 
   @override
@@ -30,7 +30,7 @@ class BuyService extends StatefulWidget {
 }
 
 class BuyServiceState extends State<BuyService> {
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -51,9 +51,9 @@ class BuyServiceState extends State<BuyService> {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
           ScreenTypeLayout(
-            mobile: MobileBuyService(data),
-            tablet: DesktopBuyService(data),
-            desktop: DesktopBuyService(data),
+            mobile: MobileBuyService(data!),
+            tablet: DesktopBuyService(data!),
+            desktop: DesktopBuyService(data!),
           ),
     );
   }
@@ -72,12 +72,16 @@ class BuyServiceState extends State<BuyService> {
         'store_id': '${widget.sid}',
       }
     ).then((value) {
-      data = value;
-      data['domain'] = widget.domain;
-      print('data: $data');
+      if (!mounted) return;
+      if (value == null || value is! Map || value['service_selections'] == null) {
+        Utils.showMessageDialog(context, 'Service info unavailable');
+        return;
+      }
+      data = Map<String, dynamic>.from(value);
+      data!['domain'] = widget.domain;
       setState(() {});
     }).onError((error, stackTrace) {
-      Utils.showMessageDialog(context, error);
+      if (mounted) Utils.showMessageDialog(context, error);
     });
   }
 }

lib/pages/change_mobile_or_email.dart

@@ -15,7 +15,7 @@ import '../widgets/mobile/mobile_change_mobile_or_email.dart';
 class ChangeMobileOrEmail extends StatelessWidget {
   final bool isMobile;
 
-  const ChangeMobileOrEmail(this.isMobile, {Key key}) : super(key: key);
+  const ChangeMobileOrEmail(this.isMobile, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/checkout.dart

@@ -11,7 +11,7 @@ import '../widgets/mobile/mobile_checkout.dart';
 class Checkout extends StatelessWidget {
   final int businessId;
 
-  const Checkout(this.businessId, {Key key}) :
+  const Checkout(this.businessId, {Key? key}) :
       super(key: key);
 
   @override

lib/pages/contact_us.dart

@@ -12,9 +12,9 @@ import '../widgets/desktop/desktop_contact_us.dart';
 import '../widgets/mobile/mobile_contact_us.dart';
 
 class ContactUs extends StatefulWidget {
-  final int businessId;
+  final int? businessId;
 
-  const ContactUs({this.businessId, Key key}) :
+  const ContactUs({this.businessId, Key? key}) :
       super(key: key);
 
   @override
@@ -22,7 +22,7 @@ class ContactUs extends StatefulWidget {
 }
 
 class ContactUsState extends State<ContactUs> {
-  Business business;
+  Business? business;
 
   @override
   Widget build(BuildContext context) {
@@ -43,9 +43,9 @@ class ContactUsState extends State<ContactUs> {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
           ScreenTypeLayout(
-            mobile: MobileContactUs(business),
-            tablet: DesktopContactUs(business),
-            desktop: DesktopContactUs(business),
+            mobile: MobileContactUs(business!),
+            tablet: DesktopContactUs(business!),
+            desktop: DesktopContactUs(business!),
           ),
     );
   }
@@ -59,7 +59,7 @@ class ContactUsState extends State<ContactUs> {
   void loadData() {
     HttpUtil.httpGet(
       'v1/get-business',
-      businessId: widget.businessId,
+      businessId: widget.businessId!,
     ).then((value) {
       business = Business.fromJson(value);
       setState(() {});

lib/pages/coupons.dart

@@ -10,7 +10,7 @@ import '../widgets/mobile/mobile_coupons.dart';
 class Coupons extends StatelessWidget {
   final int contactId;
 
-  const Coupons(this.contactId, {Key key}) :
+  const Coupons(this.contactId, {Key? key}) :
       super(key: key);
 
 

lib/pages/create_online_store_1.dart

@@ -11,7 +11,7 @@ import '../widgets/mobile/create_online_store_1.dart' as mobile;
 
 class CreateOnlineStore1 extends StatefulWidget {
 
-  const CreateOnlineStore1({Key key}) :
+  const CreateOnlineStore1({Key? key}) :
       super(key: key);
 
   @override

lib/pages/download.dart

@@ -30,7 +30,7 @@ class Download extends StatefulWidget {
 
 class DownloadState extends State<Download> {
   final _scaffoldKey = GlobalKey<ScaffoldState>();
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -58,11 +58,11 @@ class DownloadState extends State<Download> {
             ),
             drawer: sizingInformation.deviceScreenType == DeviceScreenType.mobile ? MobileNavigationDrawer() : null,
             body: ScreenTypeLayout(
-              mobile: MobileDownloadApps(data),
-              tablet: DesktopDownloadApps(data),
+              mobile: MobileDownloadApps(data!),
+              tablet: DesktopDownloadApps(data!),
               desktop: Scrollbar(
-                isAlwaysShown: true,
-                child: DesktopDownloadApps(data),
+                thumbVisibility: true,
+                child: DesktopDownloadApps(data!),
               ),
             ),
             bottomNavigationBar: ScreenTypeLayout(
@@ -79,7 +79,7 @@ class DownloadState extends State<Download> {
     super.initState();
     eventBus.on<OpenDrawer>().listen((event) {
       if (mounted) {
-        _scaffoldKey.currentState.openDrawer();
+        _scaffoldKey.currentState!.openDrawer();
       }
     });
     _loadData();

lib/pages/edit_address.dart

@@ -13,10 +13,10 @@ import '../widgets/general/navigationbar.dart';
 import '../widgets/mobile/MobileBottomNav.dart';
 
 class EditAddress extends StatelessWidget {
-  final Key key;
+  final Key? key;
   final Address address;
   final int businessId;
-  const EditAddress(this.address, {this.key, int businessId}) :
+  const EditAddress(this.address, {this.key, int? businessId}) :
       businessId = businessId ?? Constants.BUSINESS_ID;
 
   @override

lib/pages/forgot_password.dart

@@ -12,7 +12,7 @@ import '../widgets/general/navigationbar.dart';
 import '../widgets/mobile/MobileBottomNav.dart';
 
 class ForgotPassword extends StatelessWidget {
-  const ForgotPassword({Key key}) : super(key: key);
+  const ForgotPassword({Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/home.dart

@@ -34,7 +34,7 @@ import '../widgets/mobile/mobile_navigation_drawer.dart';
 class Home extends StatefulWidget {
   final String title;
 
-  Home({Key key, this.title = ''}) : super(key: key);
+  Home({Key? key, this.title = ''}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -46,11 +46,11 @@ class Home extends StatefulWidget {
 class HomeState extends State<Home> {
   final _scaffoldKey = GlobalKey<ScaffoldState>();
   List<Gallery> galleries = [];
-  String content1Message;
-  Map<String, dynamic> content2;
+  String? content1Message;
+  Map<String, dynamic>? content2;
 
-  StreamSubscription _sub;
-  Uri _latestUri;
+  StreamSubscription? _sub;
+  Uri? _latestUri;
 
   @override
   Widget build(BuildContext context) {
@@ -80,9 +80,9 @@ class HomeState extends State<Home> {
                   mainAxisSize: MainAxisSize.min,
                   children: [
                     MobileIndexCarousel(galleries),
-                    MobileIndexMainContent1(content1Message),
-                    MobileIndexMainContent2(content2),
-                    MobileIndexMainContent3(content2),
+                    MobileIndexMainContent1(content1Message ?? ''),
+                    MobileIndexMainContent2(content2 ?? <String, dynamic>{}),
+                    MobileIndexMainContent3(content2 ?? <String, dynamic>{}),
                   ],
                 ),
               ),
@@ -91,24 +91,25 @@ class HomeState extends State<Home> {
                   mainAxisSize: MainAxisSize.min,
                   children: [
                     DesktopIndexCarousel(galleries),
-                    DesktopIndexMainContent1(content1Message),
-                    DesktopIndexMainContent2(content2),
+                    DesktopIndexMainContent1(content1Message ?? ''),
+                    DesktopIndexMainContent2(content2 ?? <String, dynamic>{}),
                     CustomersLogo(),
-                    DesktopIndexMainContent3(content2),
+                    DesktopIndexMainContent3(content2 ?? <String, dynamic>{}),
                   ],
                 ),
               ),
               desktop: Scrollbar(
-                isAlwaysShown: true,
+                thumbVisibility: true,
                 child: SingleChildScrollView(
+                  primary: true,
                   child: Column(
                     mainAxisSize: MainAxisSize.min,
                     children: [
                       DesktopIndexCarousel(galleries),
-                      DesktopIndexMainContent1(content1Message),
-                      DesktopIndexMainContent2(content2),
+                      DesktopIndexMainContent1(content1Message ?? ''),
+                      DesktopIndexMainContent2(content2 ?? <String, dynamic>{}),
                       CustomersLogo(),
-                      DesktopIndexMainContent3(content2),
+                      DesktopIndexMainContent3(content2 ?? <String, dynamic>{}),
                     ],
                   ),
                 ),
@@ -136,7 +137,7 @@ class HomeState extends State<Home> {
     _loadData();
     eventBus.on<OpenDrawer>().listen((event) {
       if (mounted) {
-        _scaffoldKey.currentState.openDrawer();
+        _scaffoldKey.currentState?.openDrawer();
       }
     });
     WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
@@ -163,7 +164,7 @@ class HomeState extends State<Home> {
       if (!mounted) return;
       _latestUri = Uri.base;
       print('uri base $_latestUri');
-      eventBus.fire(OnGotDeepLinkUri(_latestUri));
+      eventBus.fire(OnGotDeepLinkUri(_latestUri!));
     } else {
 //       _sub = getUriLinksStream().listen((Uri uri) {
 //         print('_sub should get uri $uri');
@@ -189,7 +190,7 @@ class HomeState extends State<Home> {
 //
 //       if (!mounted) return;
 //       _latestUri = initialUri;
-//       eventBus.fire(OnGotDeepLinkUri(_latestUri));
+//       eventBus.fire(OnGotDeepLinkUri(_latestUri!));
     }
   }
 }

lib/pages/igoshow_learn_more.dart

@@ -16,7 +16,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_igoshow_learn_more.dart';
 
 class IGoShowLearnMore extends StatefulWidget {
-  const IGoShowLearnMore({Key key}) : super(key: key);
+  const IGoShowLearnMore({Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -26,7 +26,7 @@ class IGoShowLearnMore extends StatefulWidget {
 
 class IGoShowLearnMoreState extends State<IGoShowLearnMore> {
   final _scaffoldKey = GlobalKey<ScaffoldState>();
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -56,9 +56,9 @@ class IGoShowLearnMoreState extends State<IGoShowLearnMore> {
             ),
             drawer: null,
             body: ScreenTypeLayout(
-              mobile: MobileiGoShowLearnMore(data),
-              tablet: DesktopiGoShowLearnMore(data),
-              desktop: DesktopiGoShowLearnMore(data),
+              mobile: MobileiGoShowLearnMore(data!),
+              tablet: DesktopiGoShowLearnMore(data!),
+              desktop: DesktopiGoShowLearnMore(data!),
             ),
             bottomNavigationBar: ScreenTypeLayout(
               mobile: MobileBottomNav(currentIndex: 0,),

lib/pages/login.dart

@@ -14,7 +14,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_login.dart';
 
 class Login extends StatefulWidget {
-  final Key key;
+  final Key? key;
 
   const Login({this.key}) : super(key: key);
 

lib/pages/me.dart

@@ -15,7 +15,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_me.dart';
 
 class Me extends StatefulWidget {
-  final Key key;
+  final Key? key;
 
   const Me({this.key}) : super(key: key);
 

lib/pages/minipos_learn_more.dart

@@ -16,7 +16,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_minipos_learn_more.dart';
 
 class MiniPosLearnMore extends StatefulWidget {
-  const MiniPosLearnMore({Key key}) : super(key: key);
+  const MiniPosLearnMore({Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() {
@@ -26,7 +26,7 @@ class MiniPosLearnMore extends StatefulWidget {
 
 class MiniPosLearnMoreState extends State<MiniPosLearnMore> {
   final _scaffoldKey = GlobalKey<ScaffoldState>();
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -57,9 +57,9 @@ class MiniPosLearnMoreState extends State<MiniPosLearnMore> {
             ),
             drawer: null,
             body: ScreenTypeLayout(
-              mobile: MobileMiniPosLearnMore(data),
-              tablet: DesktopMiniPosLearnMore(data),
-              desktop: DesktopMiniPosLearnMore(data),
+              mobile: MobileMiniPosLearnMore(data!),
+              tablet: DesktopMiniPosLearnMore(data!),
+              desktop: DesktopMiniPosLearnMore(data!),
             ),
             bottomNavigationBar: ScreenTypeLayout(
               mobile: MobileBottomNav(currentIndex: 0,),

lib/pages/my_addresses.dart

@@ -8,10 +8,10 @@ import '../widgets/desktop/desktop_my_addresses.dart';
 import '../widgets/mobile/mobile_my_addresses.dart';
 
 class MyAddresses extends StatelessWidget {
-  final Key key;
+  final Key? key;
   final int businessId;
 
-  const MyAddresses({this.key, int businessId}) :
+  const MyAddresses({this.key, int? businessId}) :
       businessId = businessId ?? Constants.BUSINESS_ID;
 
   @override

lib/pages/my_support.dart

@@ -8,10 +8,10 @@ import '../widgets/desktop/desktop_my_support.dart';
 import '../widgets/mobile/mobile_my_support.dart';
 
 class MySupport extends StatelessWidget {
-  final Key key;
+  final Key? key;
   final int businessId;
 
-  const MySupport({this.key, int businessId}) :
+  const MySupport({this.key, int? businessId}) :
       businessId = businessId ?? Constants.BUSINESS_ID;
 
   @override

lib/pages/new_address.dart

@@ -7,9 +7,9 @@ import '../widgets/desktop/desktop_new_address.dart';
 import '../widgets/mobile/mobile_new_address.dart';
 
 class NewAddress extends StatelessWidget {
-  final Key key;
-  final LocatedAddress locatedAddress;
-  final int businessId;
+  final Key? key;
+  final LocatedAddress? locatedAddress;
+  final int? businessId;
   const NewAddress({this.key, this.locatedAddress, this.businessId}) : super(key: key);
 
   @override

lib/pages/new_comment.dart

@@ -10,7 +10,7 @@ import '../widgets/mobile/mobile_new_comment.dart';
 class NewComment extends StatelessWidget {
   final int orderId;
 
-  const NewComment(this.orderId, {Key key}) :
+  const NewComment(this.orderId, {Key? key}) :
         super(key: key);
 
 

lib/pages/new_ticket.dart

@@ -14,10 +14,10 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_new_ticket.dart';
 
 class NewTicket extends StatefulWidget {
-  final Key key;
+  final Key? key;
   final int businessId;
 
-  const NewTicket({this.key, int businessId}) :
+  const NewTicket({this.key, int? businessId}) :
         businessId = businessId ?? Constants.BUSINESS_ID;
 
   @override

lib/pages/new_user.dart

@@ -12,7 +12,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_new_user.dart';
 
 class NewUser extends StatelessWidget {
-  const NewUser({Key key}) : super(key: key);
+  const NewUser({Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/order_detail.dart

@@ -11,7 +11,7 @@ class OrderDetail extends StatelessWidget {
   final int orderId;
   final bool fromOrders;
 
-  const OrderDetail(this.orderId, {this.fromOrders = false, Key key}) :
+  const OrderDetail(this.orderId, {this.fromOrders = false, Key? key}) :
       super(key: key);
 
   @override

lib/pages/pay_now.dart

@@ -10,7 +10,7 @@ import '../widgets/mobile/mobile_pay_now.dart';
 class PayNow extends StatelessWidget {
   final int orderId;
 
-  const PayNow(this.orderId, {Key key}) :
+  const PayNow(this.orderId, {Key? key}) :
       super(key: key);
 
 

lib/pages/plain_page.dart

@@ -12,10 +12,10 @@ import '../utils/http_util.dart';
 import '../utils/utils.dart';
 
 class PlainPage extends StatefulWidget {
-  final int businessId;
+  final int? businessId;
   final String slug;
 
-  const PlainPage(this.slug, {this.businessId, Key key}) :
+  const PlainPage(this.slug, {this.businessId, Key? key}) :
       super(key: key);
 
   @override
@@ -23,7 +23,7 @@ class PlainPage extends StatefulWidget {
 }
 
 class PlainPageState extends State<PlainPage> {
-  Blog blog;
+  Blog? blog;
 
   @override
   Widget build(BuildContext context) {
@@ -44,9 +44,9 @@ class PlainPageState extends State<PlainPage> {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
           ScreenTypeLayout(
-            mobile: MobilePlainPage(blog),
-            tablet: DesktopPlainPage(blog),
-            desktop: DesktopPlainPage(blog),
+            mobile: MobilePlainPage(blog!),
+            tablet: DesktopPlainPage(blog!),
+            desktop: DesktopPlainPage(blog!),
           ),
     );
   }
@@ -60,7 +60,7 @@ class PlainPageState extends State<PlainPage> {
   void loadData() {
     HttpUtil.httpGet(
       'v1/special-page',
-      businessId: widget.businessId,
+      businessId: widget.businessId!,
       queryParameters: {
         'bid': widget.slug,
       }

lib/pages/product_detail_page.dart

@@ -10,10 +10,10 @@ import '../widgets/desktop/desktop_product_detail_page.dart';
 import '../widgets/mobile/mobile_product_detail_page.dart';
 
 class ProductDetailPage extends StatelessWidget {
-  final Business business;
-  final Product product;
+  final Business? business;
+  final Product? product;
 
-  const ProductDetailPage({this.business, this.product, Key key}) :
+  const ProductDetailPage({this.business, this.product, Key? key}) :
       super(key: key);
 
 
@@ -24,9 +24,9 @@ class ProductDetailPage extends StatelessWidget {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
           ScreenTypeLayout(
-            mobile: MobileProductDetailPage(business: business, product: product,),
-            tablet: DesktopProductDetailPage(business: business, product: product,),
-            desktop: DesktopProductDetailPage(business: business, product: product,),
+            mobile: MobileProductDetailPage(business: business!, product: product!,),
+            tablet: DesktopProductDetailPage(business: business!, product: product!,),
+            desktop: DesktopProductDetailPage(business: business!, product: product!,),
           ),
     );
   }

lib/pages/product_search.dart

@@ -9,7 +9,7 @@ import '../widgets/mobile/product_search.dart' as mobile;
 class ProductSearch extends StatelessWidget {
   final Business business;
 
-  const ProductSearch(this.business, {Key key}) : super(key: key);
+  const ProductSearch(this.business, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/renew_license.dart

@@ -12,7 +12,7 @@ import '../widgets/mobile/mobile_renew_license.dart';
 
 class RenewLicense extends StatefulWidget {
 
-  const RenewLicense({Key key}) :
+  const RenewLicense({Key? key}) :
       super(key: key);
 
   @override

lib/pages/renew_minioffice.dart

@@ -17,7 +17,7 @@ import '../widgets/mobile/mobile_renew_license.dart';
 class RenewMiniOffice extends StatefulWidget {
   final int gid;
 
-  const RenewMiniOffice(this.gid, {Key key}) :
+  const RenewMiniOffice(this.gid, {Key? key}) :
       super(key: key);
 
   @override
@@ -25,7 +25,7 @@ class RenewMiniOffice extends StatefulWidget {
 }
 
 class RenewMiniOfficeState extends State<RenewMiniOffice> {
-  Map<String, dynamic> data;
+  Map<String, dynamic>? data;
 
   @override
   Widget build(BuildContext context) {
@@ -46,9 +46,9 @@ class RenewMiniOfficeState extends State<RenewMiniOffice> {
     return ResponsiveBuilder(
       builder: (context, sizingInformation) =>
           ScreenTypeLayout(
-            mobile: MobileRenewMiniOffice(data),
-            tablet: DesktopRenewMiniOffice(data),
-            desktop: DesktopRenewMiniOffice(data),
+            mobile: MobileRenewMiniOffice(data!),
+            tablet: DesktopRenewMiniOffice(data!),
+            desktop: DesktopRenewMiniOffice(data!),
           ),
     );
   }

lib/pages/reset_password.dart

@@ -13,8 +13,8 @@ import '../widgets/mobile/mobile_reset_password.dart';
 
 class ResetPassword extends StatelessWidget {
   final String mobile;
-  final String code;
-  const ResetPassword(this.mobile, {Key key, this.code}) : super(key: key);
+  final String? code;
+  const ResetPassword(this.mobile, {Key? key, this.code}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/search_place.dart

@@ -5,7 +5,7 @@ import '../widgets/mobile/mobile_search_place.dart';
 import 'package:responsive_builder/responsive_builder.dart';
 
 class SearchPlace extends StatelessWidget {
-  final Key key;
+  final Key? key;
   final int businessId;
   const SearchPlace(this.businessId, {this.key}) : super(key: key);
 

lib/pages/set_password.dart

@@ -13,8 +13,8 @@ import '../widgets/mobile/mobile_set_password.dart';
 
 class SetPassword extends StatelessWidget {
   final String mobile;
-  final String code;
-  const SetPassword(this.mobile, {Key key, this.code}) : super(key: key);
+  final String? code;
+  const SetPassword(this.mobile, {Key? key, this.code}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/shop.dart

@@ -8,9 +8,9 @@ import '../widgets/desktop/shop.dart' as desktop;
 import '../widgets/mobile/shop.dart' as mobile;
 
 class Shop extends StatefulWidget {
-  final int businessId;
+  final int? businessId;
 
-  const Shop({this.businessId, Key key}) : super(key: key);
+  const Shop({this.businessId, Key? key}) : super(key: key);
 
   @override
   State<StatefulWidget> createState() => ShopState();
@@ -20,7 +20,7 @@ class ShopState extends State<Shop> {
   @override
   Widget build(BuildContext context) {
     int _businessId =
-    widget.businessId == null ? Utils.getBusinessId() : widget.businessId;
+    widget.businessId == null ? Utils.getBusinessId() : widget.businessId!;
 
     return ResponsiveBuilder(
       builder: (context, sizingInformation) => ScreenTypeLayout(

lib/pages/store_product_search.dart

@@ -15,7 +15,7 @@ import '../widgets/mobile/mobile_store_product_search.dart';
 class StoreProductSearch extends StatelessWidget {
   final Business business;
 
-  const StoreProductSearch(this.business, {Key key}) : super(key: key);
+  const StoreProductSearch(this.business, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/stripe_pay_web.dart

@@ -1,34 +0,0 @@
-
-import 'package:flutter/material.dart';
-import 'package:responsive_builder/responsive_builder.dart';
-
-import '../models/order.dart';
-import '../models/payment_platform.dart';
-import '../models/stripe_payment_method.dart';
-import '../store/actions.dart';
-import '../store/store.dart';
-import '../widgets/desktop/desktop_stripe_pay_web.dart';
-import '../widgets/mobile/mobile_stripe_pay_web.dart';
-
-class StripePayWeb extends StatelessWidget {
-  final Order order;
-  final PaymentPlatform paymentPlatform;
-  final StripePaymentMethod stripePaymentMethod;
-
-  const StripePayWeb(this.order, this.paymentPlatform, {this.stripePaymentMethod});
-
-  @override
-  Widget build(BuildContext context) {
-    store.dispatch(UpdateContext(context));
-
-    return ResponsiveBuilder(
-      builder: (context, sizingInformation) =>
-          ScreenTypeLayout(
-            mobile: MobileStripePayWeb(order, paymentPlatform, stripePaymentMethod: stripePaymentMethod,),
-            tablet: DesktopStripePayWeb(order, paymentPlatform, stripePaymentMethod: stripePaymentMethod,),
-            desktop: DesktopStripePayWeb(order, paymentPlatform, stripePaymentMethod: stripePaymentMethod,),
-          ),
-    );
-  }
-
-}

lib/pages/user_profile.dart

@@ -13,7 +13,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_user_profile.dart';
 
 class UserProfile extends StatelessWidget {
-  const UserProfile({Key key}) : super(key: key);
+  const UserProfile({Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {

lib/pages/view_blog.dart

@@ -14,7 +14,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_view_blog.dart';
 
 class ViewBlog extends StatefulWidget {
-  final Key key;
+  final Key? key;
   final int bid;
 
   const ViewBlog(this.bid, {this.key}) : super(key: key);

lib/pages/view_ticket.dart

@@ -14,7 +14,7 @@ import '../widgets/mobile/MobileBottomNav.dart';
 import '../widgets/mobile/mobile_view_ticket.dart';
 
 class ViewTicket extends StatefulWidget {
-  final Key key;
+  final Key? key;
   final int ticketId;
 
   const ViewTicket(this.ticketId, {this.key}) : super(key: key);

lib/routes.dart

@@ -44,169 +44,169 @@ class Routes {
 
   static void configure() {
     router.define('/', handler: new Handler(
-      handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+      handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
         return Home(title: Constants.APP_TITLE,);
       }),
       transitionType: TransitionType.fadeIn
     );
     router.define('/download', handler: new Handler(
-      handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+      handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
         return Download();
       }),
       transitionType: TransitionType.inFromRight
     );
     router.define('/minipos-learn-more', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return MiniPosLearnMore();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/igoshow-learn-more', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return IGoShowLearnMore();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/login', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return Login();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/me', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return Me();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/change-password', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return ChangePassword();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/user-profile', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return UserProfile();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/new-user', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return NewUser();
         }),
         transitionType: TransitionType.inFromRight
     );
     router.define('/set-password/:mobile/:code', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return SetPassword(params['mobile'][0], code: params['code'][0]);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return SetPassword(params['mobile']![0], code: params['code']![0]);
         }
     ));
     router.define('/forgot-password', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return ForgotPassword();
         }
     ));
     router.define('/reset-password/:mobile/:code', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return ResetPassword(params['mobile'][0], code: params['code'][0]);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return ResetPassword(params['mobile']![0], code: params['code']![0]);
         }
     ));
     router.define('/change-mobile-email/:ismobile', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          if (params['ismobile'][0] == '1') {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          if (params['ismobile']![0] == '1') {
             return ChangeMobileOrEmail(true);
           }
           return ChangeMobileOrEmail(false);
         }
     ));
     router.define('/my-addresses/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return MyAddresses(businessId: int.parse(params['business_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return MyAddresses(businessId: int.parse(params['business_id']![0]),);
         }
     ));
     router.define('/my-support/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return MySupport(businessId: int.parse(params['business_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return MySupport(businessId: int.parse(params['business_id']![0]),);
         }
     ));
     router.define('/new-ticket/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return NewTicket(businessId: int.parse(params['business_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return NewTicket(businessId: int.parse(params['business_id']![0]),);
         }
     ));
     router.define('/search-place/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return SearchPlace(int.parse(params['business_id'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return SearchPlace(int.parse(params['business_id']![0]));
         }
     ));
     router.define('/view-ticket/:ticket_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return ViewTicket(int.parse(params['ticket_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return ViewTicket(int.parse(params['ticket_id']![0]),);
         }
     ));
     router.define('/blog/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return Blog(businessId: int.parse(params['business_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return Blog(businessId: int.parse(params['business_id']![0]),);
         }
     ));
     router.define('/view-blog/:bid', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return ViewBlog(int.parse(params['bid'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return ViewBlog(int.parse(params['bid']![0]),);
         }
     ));
     router.define('/shop/:business_id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return Shop(businessId: int.parse(params['business_id'][0]),);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return Shop(businessId: int.parse(params['business_id']![0]),);
         }
     ));
     router.define('/shop', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return Shop();
         }
     ));
     // router.define('/ocr-scan', handler: new Handler(
-    //     handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+    //     handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
     //       return OCRScan();
     //     }
     // ));
     router.define('/checkout/:id', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return Checkout(int.parse(params['id'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return Checkout(int.parse(params['id']![0]));
         }),
     );
     router.define('/paynow/:orderId', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return PayNow(int.parse(params['orderId'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return PayNow(int.parse(params['orderId']![0]));
         }),
     );
     router.define('/orders', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return Orders();
         }
     ));
     router.define('/my-cards', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return MyCards();
         }
     ));
     router.define('/orderdetail/:orderId', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return OrderDetail(int.parse(params['orderId'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return OrderDetail(int.parse(params['orderId']![0]));
         }),
     );
     router.define('/new-comment/:orderId', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return NewComment(int.parse(params['orderId'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return NewComment(int.parse(params['orderId']![0]));
         }),
     );
     router.define('/coupons/:contactId', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return Coupons(int.parse(params['contactId'][0]));
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return Coupons(int.parse(params['contactId']![0]));
         }),
     );
     router.define('/service-policy', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return PlainPage(
             'service-policy',
             // businessId: Constants.BUSINESS_ID,
@@ -215,7 +215,7 @@ class Routes {
         }),
     );
     router.define('/return-policy', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return PlainPage(
             'return-policy',
             // businessId: Constants.BUSINESS_ID,
@@ -224,7 +224,7 @@ class Routes {
         }),
     );
     router.define('/privacy-policy', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return PlainPage(
             'privacy-policy',
             // businessId: Constants.BUSINESS_ID,
@@ -233,7 +233,7 @@ class Routes {
         }),
     );
     router.define('/end-user-license-agreement', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return PlainPage(
             'end-user-license-agreement',
             // businessId: Constants.BUSINESS_ID,
@@ -242,7 +242,7 @@ class Routes {
         }),
     );
     router.define('/about-us', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return PlainPage(
             'about-us',
             // businessId: Constants.BUSINESS_ID,
@@ -251,29 +251,29 @@ class Routes {
         }),
     );
     router.define('/contact-us', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return ContactUs(
             businessId: Constants.BUSINESS_ID,
           );
         }),
     );
     router.define('/renew-license', handler: new Handler(
-      handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+      handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
         return RenewLicense();
       }
     ));
     router.define('/renew-minioffice/:gid', handler: new Handler(
-      handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-        return RenewMiniOffice(int.parse(params['gid'][0]));
+      handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+        return RenewMiniOffice(int.parse(params['gid']![0]));
       }
     ));
     router.define('/buy-service/:gid/:servicename', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
-          return BuyService(int.parse(params['gid'][0]), params['servicename'][0]);
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
+          return BuyService(int.parse(params['gid']![0]), params['servicename']![0]);
         }
     ));
     router.define('/contact-stores', handler: new Handler(
-        handlerFunc: (BuildContext context, Map<String, List<String>> params) {
+        handlerFunc: (BuildContext? context, Map<String, List<String>> params) {
           return CreateOnlineStore1();
         }
     ));

lib/store/actions.dart

@@ -15,12 +15,12 @@ class UpdateLocale {
 }
 
 class UpdateCurrentUser {
-  final User user;
+  final User? user;
   UpdateCurrentUser(this.user);
 }
 
 class UpdateRedirectRoute {
-  final String route;
+  final String? route;
   UpdateRedirectRoute(this.route);
 }
 

lib/store/reducer/cart_info_reducer.dart

@@ -4,10 +4,10 @@ import 'package:redux/redux.dart';
 
 import '../actions.dart';
 
-final cartInfoReducer = combineReducers<List<CartInfo>>([
-  TypedReducer<List<CartInfo>, UpdateCartInfo>(_updateCartInfo)
+final cartInfoReducer = combineReducers<List<CartInfo>?>([
+  TypedReducer<List<CartInfo>?, UpdateCartInfo>(_updateCartInfo)
 ]);
 
-List<CartInfo> _updateCartInfo(List<CartInfo> cartInfos, action) {
+List<CartInfo>? _updateCartInfo(List<CartInfo>? cartInfos, action) {
   return action.cartInfos;
 }

lib/store/reducer/context_reducer.dart

@@ -3,10 +3,10 @@ import 'package:flutter/material.dart';
 import 'package:flutter_wisetronic/store/actions.dart';
 import 'package:redux/redux.dart';
 
-final contextReducer = combineReducers<BuildContext>([
-  TypedReducer<BuildContext, UpdateContext>(_updateContext)
+final contextReducer = combineReducers<BuildContext?>([
+  TypedReducer<BuildContext?, UpdateContext>(_updateContext)
 ]);
 
-BuildContext _updateContext(BuildContext context, action) {
+BuildContext? _updateContext(BuildContext? context, action) {
   return action.context;
 }

lib/store/reducer/device_id_reducer.dart

@@ -2,10 +2,10 @@ import 'package:redux/redux.dart';
 
 import '../actions.dart';
 
-final deviceIdReducer = combineReducers<String>([
-  TypedReducer<String, UpdateDeviceId>(_updateDeviceId)
+final deviceIdReducer = combineReducers<String?>([
+  TypedReducer<String?, UpdateDeviceId>(_updateDeviceId)
 ]);
 
-String _updateDeviceId(String deviceId, action) {
+String? _updateDeviceId(String? deviceId, action) {
   return action.deviceId;
 }

lib/store/reducer/fcmtoken_reducer.dart

@@ -2,10 +2,10 @@ import 'package:redux/redux.dart';
 
 import '../actions.dart';
 
-final fcmtokenReducer = combineReducers<String>([
-  TypedReducer<String, UpdateFcmToken>(_updateFcmToken)
+final fcmtokenReducer = combineReducers<String?>([
+  TypedReducer<String?, UpdateFcmToken>(_updateFcmToken)
 ]);
 
-String _updateFcmToken(String token, action) {
+String? _updateFcmToken(String? token, action) {
   return action.token;
 }

lib/store/reducer/last_visit_reducer.dart

@@ -2,10 +2,10 @@ import 'package:redux/redux.dart';
 
 import '../actions.dart';
 
-final lastVisitReducer = combineReducers<List<int>>([
-  TypedReducer<List<int>, UpdateLastVisit>(_updateLastVisit)
+final lastVisitReducer = combineReducers<List<int>?>([
+  TypedReducer<List<int>?, UpdateLastVisit>(_updateLastVisit)
 ]);
 
-List<int> _updateLastVisit(List<int> lastVisit, action) {
+List<int>? _updateLastVisit(List<int>? lastVisit, action) {
   return action.lastVisit;
 }

lib/store/reducer/locale_reducer.dart

@@ -2,10 +2,10 @@ import 'package:flutter/material.dart';
 import 'package:flutter_wisetronic/store/actions.dart';
 import 'package:redux/redux.dart';
 
-final localeReducer = combineReducers<Locale>([
-  TypedReducer<Locale, UpdateLocale>(_updateLocale)
+final localeReducer = combineReducers<Locale?>([
+  TypedReducer<Locale?, UpdateLocale>(_updateLocale)
 ]);
 
-Locale _updateLocale(Locale locale, action) {
+Locale? _updateLocale(Locale? locale, action) {
   return action.locale;
 }

lib/store/reducer/locate_address_reducer.dart

@@ -3,10 +3,10 @@ import 'package:redux/redux.dart';
 import '../../models/located_address.dart';
 import '../actions.dart';
 
-final locatedAddressReducer = combineReducers<LocatedAddress>([
-  TypedReducer<LocatedAddress, UpdateLocatedAddress>(_updateLocatedAddress)
+final locatedAddressReducer = combineReducers<LocatedAddress?>([
+  TypedReducer<LocatedAddress?, UpdateLocatedAddress>(_updateLocatedAddress)
 ]);
 
-LocatedAddress _updateLocatedAddress(LocatedAddress locatedAddress, action) {
+LocatedAddress? _updateLocatedAddress(LocatedAddress? locatedAddress, action) {
   return action.locatedAddress;
 }

lib/store/reducer/redirect_route_reducer.dart

@@ -2,10 +2,10 @@
 import 'package:redux/redux.dart';
 import '../actions.dart';
 
-final redirectRouteReducer = combineReducers<String>([
-  TypedReducer<String, UpdateRedirectRoute>(_updateRedirectRoute)
+final redirectRouteReducer = combineReducers<String?>([
+  TypedReducer<String?, UpdateRedirectRoute>(_updateRedirectRoute)
 ]);
 
-String _updateRedirectRoute(String route, action) {
+String? _updateRedirectRoute(String? route, action) {
   return action.route;
 }

lib/store/reducer/table_number_reducer.dart

@@ -2,10 +2,10 @@ import 'package:redux/redux.dart';
 
 import '../actions.dart';
 
-final tableNumberReducer = combineReducers<String>([
-  TypedReducer<String, UpdateTableNumber>(_updateTableNumber)
+final tableNumberReducer = combineReducers<String?>([
+  TypedReducer<String?, UpdateTableNumber>(_updateTableNumber)
 ]);
 
-String _updateTableNumber(String tableNumber, action) {
+String? _updateTableNumber(String? tableNumber, action) {
   return action.tableNumber;
 }

lib/store/reducer/user_reducer.dart

@@ -4,10 +4,10 @@ import 'package:flutter_wisetronic/models/user.dart';
 
 import '../actions.dart';
 
-final userReducer = combineReducers<User>([
-  TypedReducer<User, UpdateCurrentUser>(_updateCurrentUser)
+final userReducer = combineReducers<User?>([
+  TypedReducer<User?, UpdateCurrentUser>(_updateCurrentUser)
 ]);
 
-User _updateCurrentUser(User user, action) {
+User? _updateCurrentUser(User? user, action) {
   return action.user;
 }

lib/store/state/app_state.dart

@@ -6,16 +6,16 @@ import '../../models/user.dart';
 
 @immutable
 class AppState {
-  final BuildContext context;
-  final Locale locale;
-  final User user;
-  final String redirectRoute;
-  final List<CartInfo> cartInfos;
-  final LocatedAddress locatedAddress;
-  final String fcmToken;
-  final List<int> lastVisit;
-  final String deviceId;
-  final String tableNumber;
+  final BuildContext? context;
+  final Locale? locale;
+  final User? user;
+  final String? redirectRoute;
+  final List<CartInfo>? cartInfos;
+  final LocatedAddress? locatedAddress;
+  final String? fcmToken;
+  final List<int>? lastVisit;
+  final String? deviceId;
+  final String? tableNumber;
 
   AppState({this.context, this.locale, this.user, this.redirectRoute,
     this.cartInfos, this.locatedAddress, this.fcmToken, this.lastVisit,
@@ -24,8 +24,8 @@ class AppState {
   factory AppState.init() => AppState();
 
   AppState copyWith({
-    BuildContext context,
-    Locale locale}) {
+    BuildContext? context,
+    Locale? locale}) {
     return AppState(
       context: context ?? this.context,
       locale: locale ?? this.locale,