初始化

2026-09-15 15:44:13 +07:00
commit a23ba685e9
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+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:hgdj/assets_tool/images.dart';
+import 'package:hgdj/hj_page/main_page/provider/bottom_bar_provider.dart';
+import 'package:hgdj/hj_page/pre_sale/pre_sale_provider.dart';
+import 'package:hgdj/hj_utils/screen.dart';
+import 'package:hgdj/tools_base/widget/net_image_widget.dart';
+import 'package:provider/provider.dart';
+
+import '../../../config/config.dart';
+import '../../../tools_base/event_bus/event_bus_util.dart';
+import '../../../tools_base/event_bus/events.dart';
+import '../home/provider/home_update_marker_provider.dart';
+import '../mine/home_mine_logic.dart';
+import 'main_logic.dart';
+
+/// 底部导航栏：按 logic.tabs 渲染各 tab，选中态随 logic.curPageIndex 刷新
+class MainPageTabbar extends StatelessWidget {
+  const MainPageTabbar({super.key});
+
+  MainPageLogic get logic => Get.find<MainPageLogic>();
+
+  void _selectIndex(int index) {
+    final switchingToHome = index == 0 && logic.curPageIndex.value != 0;
+    logic.jumpToPage(index);
+    eventBus.emit(TabIndexChanged(index: index));
+    //首页
+    if (index == 0) {
+      PreSaleProvider().refreshConfig(); //刷新预售权益
+      // 从其它底栏切回主页时重拉「最新」等更新标记，避免长时间停留 App 内感知不到红点
+      if (switchingToHome) {
+        HomeUpdateMarkerProvider().loadData();
+      }
+    }
+    // 短视频播/停不用在这里管：切走后 IndexedStack 不再 paint 该页，其 RepaintBoundary 图层
+    // 从图层树摘除，VisibilityDetector 收到 detach 回调报可见度 0，播放器自行暂停。
+    // 动短视频页的 RepaintBoundary 前，务必回归「切到别的 tab 还有没有声音」
+    //我的:切到该 tab 时整体刷新(用户信息/钱包/消息/预售/分层配置)
+    if (index == logic.tabs.length - 1 && Get.isRegistered<MineMainLogic>()) {
+      Get.find<MineMainLogic>().onRefresh();
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    //选中态与内容页同源 curPageIndex：底栏点击、deeplink 外部跳转都只改它一处
+    return Obx(() {
+      final cur = logic.curPageIndex.value;
+      return Container(
+        padding: EdgeInsets.fromLTRB(12, 0, 12, screen.paddingBottom),
+        decoration: BoxDecoration(
+          color: Colors.black,
+          border: Border(
+              top: BorderSide(color: Colors.black.withValues(alpha: 0.02))),
+        ),
+        child: Row(
+          children: List.generate(logic.tabs.length, (index) {
+            if (index == 0)
+              return _scrollTopItem<HomeBottomProvider>(index, cur);
+            if (Config.darkWebEnable && index == 2)
+              return _scrollTopItem<DarkwebBottomProvider>(index, cur);
+            if (index == logic.communityTab)
+              return _scrollTopItem<CommunityBottomProvider>(index, cur);
+            return _normalItem(index, cur);
+          }),
+        ),
+      );
+    });
+  }
+
+  /// 选中后再点会变「回到顶部」的 tab（主页/暗网/社区）
+  Widget _scrollTopItem<T extends BaseBottomProvider>(int index, int cur) {
+    final isSelected = index == cur;
+    return Consumer<T>(builder: (_, provider, __) {
+      final isTop = provider.showTop && isSelected;
+      final imagePath =
+          isTop ? 'jump_to_top.png'.homePath : _iconPath(index, isSelected);
+      //暗网配置Icon
+      final isDarkConfigImg = index == 2 &&
+          isSelected &&
+          Config.darkWebEnable &&
+          Config.darkWebIcon?.isNotEmpty == true;
+      return Expanded(
+        child: InkWell(
+          enableFeedback: false,
+          onTap: () => isTop ? provider.scrollToTop() : _selectIndex(index),
+          child: _tabContent(
+            isSelected: isSelected,
+            text: isTop ? '顶部' : logic.tabs[index].title,
+            icon: isDarkConfigImg
+                ? NetworkImageLoader(
+                    key: const ValueKey('darkIcon'),
+                    imageUrl: Config.darkWebIcon)
+                : Image.asset(imagePath, key: ValueKey(imagePath), width: 24),
+          ),
+        ),
+      );
+    });
+  }
+
+  /// 普通 tab
+  Widget _normalItem(int index, int cur) {
+    final isSelected = index == cur;
+    final imagePath = _iconPath(index, isSelected);
+    return Expanded(
+      child: InkWell(
+        enableFeedback: false,
+        onTap: () => _selectIndex(index),
+        child: _tabContent(
+          isSelected: isSelected,
+          text: logic.tabs[index].title,
+          icon: Image.asset(imagePath, key: ValueKey(imagePath), width: 24),
+        ),
+      ),
+    );
+  }
+
+  String _iconPath(int index, bool isSelected) =>
+      isSelected ? logic.tabs[index].imageSel : logic.tabs[index].imageNor;
+
+  /// 图标 + 文案：图标切换(key 变即图片路径变)交叉淡入，文字颜色平滑过渡
+  Widget _tabContent(
+      {required Widget icon, required bool isSelected, required String text}) {
+    return Container(
+      margin: const EdgeInsets.symmetric(vertical: 8),
+      child: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Container(
+            height: 24,
+            alignment: Alignment.center,
+            child: AnimatedSwitcher(
+                duration: const Duration(milliseconds: 180), child: icon),
+          ),
+          2.sizeBoxH,
+          AnimatedDefaultTextStyle(
+            duration: const Duration(milliseconds: 200),
+            style: TextStyle(
+              color: isSelected
+                  ? const Color(0xffF68804)
+                  : const Color(0xff656565),
+              fontSize: 10,
+            ),
+            child: Text(text),
+          ),
+        ],
+      ),
+    );
+  }
+}