opt: stream listener

lib/pages/bangumi/view.dart

@@ -2,13 +2,11 @@ import 'dart:async';
 
 import 'package:easy_debounce/easy_throttle.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:nil/nil.dart';
 import 'package:pilipala/common/constants.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
-import 'package:pilipala/pages/home/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
-import 'package:pilipala/pages/main/index.dart';
 
 import 'controller.dart';
 import 'widgets/bangumu_card_v.dart';
@@ -34,10 +32,6 @@ class _BangumiPageState extends State<BangumiPage>
   void initState() {
     super.initState();
     scrollController = _bangumidController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-    StreamController<bool> searchBarStream =
-        Get.find<HomeController>().searchBarStream;
     _futureBuilderFuture = _bangumidController.queryBangumiListFeed();
     _futureBuilderFutureFollow = _bangumidController.queryBangumiFollow();
     scrollController.addListener(
@@ -49,16 +43,7 @@ class _BangumiPageState extends State<BangumiPage>
             _bangumidController.onLoad();
           });
         }
-
+        handleScrollEvent(scrollController);
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-          searchBarStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-          searchBarStream.add(false);
-        }
       },
     );
   }

lib/pages/dynamics/detail/view.dart

@@ -194,7 +194,7 @@ class _DynamicDetailPageState extends State<DynamicDetailPage>
         centerTitle: false,
         titleSpacing: 0,
         title: StreamBuilder(
-          stream: titleStreamC.stream,
+          stream: titleStreamC.stream.distinct(),
           initialData: false,
           builder: (context, AsyncSnapshot snapshot) {
             return AnimatedOpacity(

lib/pages/dynamics/view.dart

@@ -3,15 +3,14 @@ import 'dart:async';
 import 'package:custom_sliding_segmented_control/custom_sliding_segmented_control.dart';
 import 'package:easy_debounce/easy_throttle.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:hive/hive.dart';
 import 'package:pilipala/common/skeleton/dynamic_card.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
 import 'package:pilipala/common/widgets/no_data.dart';
 import 'package:pilipala/models/dynamics/result.dart';
-import 'package:pilipala/pages/main/index.dart';
 import 'package:pilipala/utils/feed_back.dart';
+import 'package:pilipala/utils/main_stream.dart';
 import 'package:pilipala/utils/storage.dart';
 
 import '../mine/controller.dart';
@@ -44,8 +43,6 @@ class _DynamicsPageState extends State<DynamicsPage>
     _futureBuilderFuture = _dynamicsController.queryFollowDynamic();
     _futureBuilderFutureUp = _dynamicsController.queryFollowUp();
     scrollController = _dynamicsController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
     scrollController.addListener(
       () async {
         if (scrollController.position.pixels >=
@@ -55,14 +52,7 @@ class _DynamicsPageState extends State<DynamicsPage>
             _dynamicsController.queryFollowDynamic(type: 'onLoad');
           });
         }
-
+        handleScrollEvent(scrollController);
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-        }
       },
     );
 

lib/pages/fav_detail/view.dart

@@ -67,7 +67,7 @@ class _FavDetailPageState extends State<FavDetailPage> {
             pinned: true,
             titleSpacing: 0,
             title: StreamBuilder(
-              stream: titleStreamC.stream,
+              stream: titleStreamC.stream.distinct(),
               initialData: false,
               builder: (context, AsyncSnapshot snapshot) {
                 return AnimatedOpacity(

lib/pages/home/view.dart

@@ -171,7 +171,7 @@ class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
   @override
   Widget build(BuildContext context) {
     return StreamBuilder(
-      stream: stream,
+      stream: stream!.distinct(),
       initialData: true,
       builder: (BuildContext context, AsyncSnapshot snapshot) {
         final RxBool isUserLoggedIn = ctr!.userLogin;

lib/pages/hot/view.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/constants.dart';
 import 'package:pilipala/common/widgets/animated_dialog.dart';
@@ -9,9 +8,8 @@ import 'package:pilipala/common/widgets/overlay_pop.dart';
 import 'package:pilipala/common/skeleton/video_card_h.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
 import 'package:pilipala/common/widgets/video_card_h.dart';
-import 'package:pilipala/pages/home/index.dart';
 import 'package:pilipala/pages/hot/controller.dart';
-import 'package:pilipala/pages/main/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
 
 class HotPage extends StatefulWidget {
   const HotPage({Key? key}) : super(key: key);
@@ -34,10 +32,6 @@ class _HotPageState extends State<HotPage> with AutomaticKeepAliveClientMixin {
     super.initState();
     _futureBuilderFuture = _hotController.queryHotFeed('init');
     scrollController = _hotController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-    StreamController<bool> searchBarStream =
-        Get.find<HomeController>().searchBarStream;
     scrollController.addListener(
       () {
         if (scrollController.position.pixels >=
@@ -47,16 +41,7 @@ class _HotPageState extends State<HotPage> with AutomaticKeepAliveClientMixin {
             _hotController.onLoad();
           }
         }
-
+        handleScrollEvent(scrollController);
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-          searchBarStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-          searchBarStream.add(false);
-        }
       },
     );
   }

lib/pages/live/view.dart

@@ -2,15 +2,13 @@ import 'dart:async';
 
 import 'package:easy_debounce/easy_throttle.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/constants.dart';
 import 'package:pilipala/common/skeleton/video_card_v.dart';
 import 'package:pilipala/common/widgets/animated_dialog.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
 import 'package:pilipala/common/widgets/overlay_pop.dart';
-import 'package:pilipala/pages/home/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
-import 'package:pilipala/pages/main/index.dart';
 
 import 'controller.dart';
 import 'widgets/live_item.dart';
@@ -36,10 +34,6 @@ class _LivePageState extends State<LivePage>
     super.initState();
     _futureBuilderFuture = _liveController.queryLiveList('init');
     scrollController = _liveController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-    StreamController<bool> searchBarStream =
-        Get.find<HomeController>().searchBarStream;
     scrollController.addListener(
       () {
         if (scrollController.position.pixels >=
@@ -49,16 +43,7 @@ class _LivePageState extends State<LivePage>
             _liveController.onLoad();
           });
         }
-
+        handleScrollEvent(scrollController);
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-          searchBarStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-          searchBarStream.add(false);
-        }
       },
     );
   }

lib/pages/main/view.dart

@@ -129,7 +129,7 @@ class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
         ),
         bottomNavigationBar: StreamBuilder(
           stream: _mainController.hideTabBar
-              ? _mainController.bottomBarStream.stream
+              ? _mainController.bottomBarStream.stream.distinct()
               : StreamController<bool>.broadcast().stream,
           initialData: true,
           builder: (context, AsyncSnapshot snapshot) {

lib/pages/media/view.dart

@@ -1,13 +1,11 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
-import 'package:media_kit/media_kit.dart';
 import 'package:pilipala/common/widgets/network_img_layer.dart';
 import 'package:pilipala/models/user/fav_folder.dart';
-import 'package:pilipala/pages/main/index.dart';
 import 'package:pilipala/pages/media/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
 import 'package:pilipala/utils/utils.dart';
 
 class MediaPage extends StatefulWidget {
@@ -31,25 +29,12 @@ class _MediaPageState extends State<MediaPage>
     mediaController = Get.put(MediaController());
     _futureBuilderFuture = mediaController.queryFavFolder();
     ScrollController scrollController = mediaController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-
     mediaController.userLogin.listen((status) {
       setState(() {
         _futureBuilderFuture = mediaController.queryFavFolder();
       });
     });
-    scrollController.addListener(
+    handleScrollEvent(scrollController);
-      () {
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-        }
-      },
-    );
   }
 
   @override

lib/pages/member/view.dart

@@ -65,7 +65,7 @@ class _MemberPageState extends State<MemberPage>
         children: [
           AppBar(
             title: StreamBuilder(
-              stream: appbarStream.stream,
+              stream: appbarStream.stream.distinct(),
               initialData: false,
               builder: (BuildContext context, AsyncSnapshot snapshot) {
                 return AnimatedOpacity(

lib/pages/rank/zone/view.dart

@@ -1,7 +1,6 @@
 import 'dart:async';
 
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/constants.dart';
 import 'package:pilipala/common/widgets/animated_dialog.dart';
@@ -9,9 +8,8 @@ import 'package:pilipala/common/widgets/overlay_pop.dart';
 import 'package:pilipala/common/skeleton/video_card_h.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
 import 'package:pilipala/common/widgets/video_card_h.dart';
-import 'package:pilipala/pages/home/index.dart';
-import 'package:pilipala/pages/main/index.dart';
 import 'package:pilipala/pages/rank/zone/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
 
 class ZonePage extends StatefulWidget {
   const ZonePage({Key? key, required this.rid}) : super(key: key);
@@ -38,10 +36,6 @@ class _ZonePageState extends State<ZonePage>
     _zoneController = Get.put(ZoneController(), tag: widget.rid.toString());
     _futureBuilderFuture = _zoneController.queryRankFeed('init', widget.rid);
     scrollController = _zoneController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-    StreamController<bool> searchBarStream =
-        Get.find<HomeController>().searchBarStream;
     scrollController.addListener(
       () {
         if (scrollController.position.pixels >=
@@ -51,16 +45,7 @@ class _ZonePageState extends State<ZonePage>
             _zoneController.onLoad();
           }
         }
-
+        handleScrollEvent(scrollController);
-        final ScrollDirection direction =
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-          searchBarStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-          searchBarStream.add(false);
-        }
       },
     );
   }

lib/pages/rcmd/view.dart

@@ -2,7 +2,6 @@ import 'dart:async';
 
 import 'package:easy_debounce/easy_throttle.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/constants.dart';
 import 'package:pilipala/common/skeleton/video_card_v.dart';
@@ -10,8 +9,7 @@ import 'package:pilipala/common/widgets/animated_dialog.dart';
 import 'package:pilipala/common/widgets/http_error.dart';
 import 'package:pilipala/common/widgets/overlay_pop.dart';
 import 'package:pilipala/common/widgets/video_card_v.dart';
-import 'package:pilipala/pages/home/index.dart';
+import 'package:pilipala/utils/main_stream.dart';
-import 'package:pilipala/pages/main/index.dart';
 
 import 'controller.dart';
 
@@ -35,10 +33,6 @@ class _RcmdPageState extends State<RcmdPage>
     super.initState();
     _futureBuilderFuture = _rcmdController.queryRcmdFeed('init');
     ScrollController scrollController = _rcmdController.scrollController;
-    StreamController<bool> mainStream =
-        Get.find<MainController>().bottomBarStream;
-    StreamController<bool> searchBarStream =
-        Get.find<HomeController>().searchBarStream;
     scrollController.addListener(
       () {
         if (scrollController.position.pixels >=
@@ -49,15 +43,7 @@ class _RcmdPageState extends State<RcmdPage>
             _rcmdController.onLoad();
           });
         }
-        final ScrollDirection direction =
+        handleScrollEvent(scrollController);
-            scrollController.position.userScrollDirection;
-        if (direction == ScrollDirection.forward) {
-          mainStream.add(true);
-          searchBarStream.add(true);
-        } else if (direction == ScrollDirection.reverse) {
-          mainStream.add(false);
-          searchBarStream.add(false);
-        }
       },
     );
   }

lib/pages/subscription_detail/view.dart

@@ -67,7 +67,7 @@ class _SubDetailPageState extends State<SubDetailPage> {
             pinned: true,
             titleSpacing: 0,
             title: StreamBuilder(
-              stream: titleStreamC.stream,
+              stream: titleStreamC.stream.distinct(),
               initialData: false,
               builder: (context, AsyncSnapshot snapshot) {
                 return AnimatedOpacity(

lib/pages/video/detail/view.dart

@@ -618,7 +618,7 @@ class _VideoDetailPageState extends State<VideoDetailPage>
           /// 重新进入会刷新
           // 播放完成/暂停播放
           StreamBuilder(
-            stream: appbarStream.stream,
+            stream: appbarStream.stream.distinct(),
             initialData: 0,
             builder: ((context, snapshot) {
               return ScrollAppBar(

lib/utils/main_stream.dart

@@ -0,0 +1,34 @@
+import 'dart:async';
+import 'package:flutter/material.dart';
+import 'package:easy_debounce/easy_throttle.dart';
+import 'package:flutter/rendering.dart';
+import 'package:get/get.dart';
+
+import '../pages/home/index.dart';
+import '../pages/main/index.dart';
+
+void handleScrollEvent(
+  ScrollController scrollController,
+  // StreamController<bool> mainStream,
+  // StreamController<bool>? searchBarStream,
+) {
+  StreamController<bool> mainStream =
+      Get.find<MainController>().bottomBarStream;
+  StreamController<bool> searchBarStream =
+      Get.find<HomeController>().searchBarStream;
+  EasyThrottle.throttle(
+    'stream-throttler',
+    const Duration(milliseconds: 300),
+    () {
+      final ScrollDirection direction =
+          scrollController.position.userScrollDirection;
+      if (direction == ScrollDirection.forward) {
+        mainStream.add(true);
+        searchBarStream.add(true);
+      } else if (direction == ScrollDirection.reverse) {
+        mainStream.add(false);
+        searchBarStream.add(false);
+      }
+    },
+  );
+}