feat: 上滑隐藏bottomBar

lib/pages/dynamics/view.dart

@@ -1,12 +1,16 @@
+import 'dart:async';
+
 import 'package:custom_sliding_segmented_control/custom_sliding_segmented_control.dart';
 import 'package:flutter/cupertino.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/network_img_layer.dart';
 import 'package:pilipala/models/dynamics/result.dart';
+import 'package:pilipala/pages/main/index.dart';
 import 'package:pilipala/pages/mine/index.dart';
 import 'package:pilipala/utils/feed_back.dart';
 import 'package:pilipala/utils/storage.dart';
@@ -36,18 +40,27 @@ class _DynamicsPageState extends State<DynamicsPage>
   void initState() {
     super.initState();
     _futureBuilderFuture = _dynamicsController.queryFollowDynamic();
-
+    ScrollController scrollController = _dynamicsController.scrollController;
-    _dynamicsController.scrollController.addListener(
+    StreamController<bool> mainStream =
+        Get.find<MainController>().bottomBarStream;
+    scrollController.addListener(
       () async {
-        if (_dynamicsController.scrollController.position.pixels >=
+        if (scrollController.position.pixels >=
-            _dynamicsController.scrollController.position.maxScrollExtent -
+            scrollController.position.maxScrollExtent - 200) {
-                200) {
           if (!_isLoadingMore) {
             _isLoadingMore = true;
             await _dynamicsController.queryFollowDynamic(type: 'onLoad');
             _isLoadingMore = false;
           }
         }
+
+        final ScrollDirection direction =
+            scrollController.position.userScrollDirection;
+        if (direction == ScrollDirection.forward) {
+          mainStream.add(true);
+        } else if (direction == ScrollDirection.reverse) {
+          mainStream.add(false);
+        }
       },
     );
   }

lib/pages/hot/view.dart

@@ -1,4 +1,7 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
+import 'package:flutter/rendering.dart';
 import 'package:get/get.dart';
 import 'package:pilipala/common/widgets/animated_dialog.dart';
 import 'package:pilipala/common/widgets/overlay_pop.dart';
@@ -6,6 +9,7 @@ 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/hot/controller.dart';
+import 'package:pilipala/pages/main/index.dart';
 
 class HotPage extends StatefulWidget {
   const HotPage({Key? key}) : super(key: key);
@@ -26,15 +30,26 @@ class _HotPageState extends State<HotPage> with AutomaticKeepAliveClientMixin {
   void initState() {
     super.initState();
     _futureBuilderFuture = _hotController.queryHotFeed('init');
-    _hotController.scrollController.addListener(
+    ScrollController scrollController = _hotController.scrollController;
+    StreamController<bool> mainStream =
+        Get.find<MainController>().bottomBarStream;
+    scrollController.addListener(
       () {
-        if (_hotController.scrollController.position.pixels >=
+        if (scrollController.position.pixels >=
-            _hotController.scrollController.position.maxScrollExtent - 200) {
+            scrollController.position.maxScrollExtent - 200) {
           if (!_hotController.isLoadingMore) {
             _hotController.isLoadingMore = true;
             _hotController.onLoad();
           }
         }
+
+        final ScrollDirection direction =
+            scrollController.position.userScrollDirection;
+        if (direction == ScrollDirection.forward) {
+          mainStream.add(true);
+        } else if (direction == ScrollDirection.reverse) {
+          mainStream.add(false);
+        }
       },
     );
   }

lib/pages/live/view.dart

@@ -1,10 +1,14 @@
+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/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/main/index.dart';
 
 import 'controller.dart';
 import 'widgets/live_item.dart';
@@ -22,15 +26,26 @@ class _LivePageState extends State<LivePage> {
   @override
   void initState() {
     super.initState();
-    _liveController.scrollController.addListener(
+    ScrollController scrollController = _liveController.scrollController;
+    StreamController<bool> mainStream =
+        Get.find<MainController>().bottomBarStream;
+    scrollController.addListener(
       () {
-        if (_liveController.scrollController.position.pixels >=
+        if (scrollController.position.pixels >=
-            _liveController.scrollController.position.maxScrollExtent - 200) {
+            scrollController.position.maxScrollExtent - 200) {
           if (!_liveController.isLoadingMore) {
             _liveController.isLoadingMore = true;
             _liveController.onLoad();
           }
         }
+
+        final ScrollDirection direction =
+            scrollController.position.userScrollDirection;
+        if (direction == ScrollDirection.forward) {
+          mainStream.add(true);
+        } else if (direction == ScrollDirection.reverse) {
+          mainStream.add(false);
+        }
       },
     );
   }

lib/pages/main/controller.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:get/get.dart';
 import 'package:flutter/material.dart';
 import 'package:pilipala/pages/dynamics/index.dart';
@@ -33,4 +35,5 @@ class MainController extends GetxController {
       'label': "媒体库",
     }
   ].obs;
+  final StreamController<bool> bottomBarStream = StreamController<bool>();
 }

lib/pages/main/view.dart

@@ -1,3 +1,5 @@
+import 'dart:async';
+
 import 'package:flutter/material.dart';
 import 'package:get/get.dart';
 import 'package:hive/hive.dart';
@@ -105,6 +107,7 @@ class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
     localCache.put('sheetHeight', sheetHeight);
     localCache.put('statusBarHeight', statusBarHeight);
     return Scaffold(
+      extendBody: true,
       body: FadeTransition(
         opacity: _fadeAnimation!,
         child: SlideTransition(
@@ -129,21 +132,33 @@ class _MainAppState extends State<MainApp> with SingleTickerProviderStateMixin {
           ),
         ),
       ),
-      bottomNavigationBar: BottomNavigationBar(
+      bottomNavigationBar: StreamBuilder(
-        currentIndex: selectedIndex,
+        stream: _mainController.bottomBarStream.stream,
-        // type: BottomNavigationBarType.shifting,
+        initialData: true,
-        selectedItemColor: Theme.of(context).colorScheme.primary,
+        builder: (context, AsyncSnapshot snapshot) {
-        unselectedItemColor: Theme.of(context).colorScheme.onSurfaceVariant,
+          return AnimatedSlide(
-        selectedFontSize: 12.4,
+            curve: Curves.linear,
-        onTap: (value) => setIndex(value),
+            duration: const Duration(milliseconds: 300),
-        items: [
+            offset: Offset(0, snapshot.data ? 0 : 1),
-          ..._mainController.navigationBars.map((e) {
+            child: BottomNavigationBar(
-            return BottomNavigationBarItem(
+              currentIndex: selectedIndex,
-              icon: e['icon'],
+              // type: BottomNavigationBarType.shifting,
-              label: e['label'],
+              selectedItemColor: Theme.of(context).colorScheme.primary,
-            );
+              unselectedItemColor:
-          }).toList(),
+                  Theme.of(context).colorScheme.onSurfaceVariant,
-        ],
+              selectedFontSize: 12.4,
+              onTap: (value) => setIndex(value),
+              items: [
+                ..._mainController.navigationBars.map((e) {
+                  return BottomNavigationBarItem(
+                    icon: e['icon'],
+                    label: e['label'],
+                  );
+                }).toList(),
+              ],
+            ),
+          );
+        },
       ),
     );
   }

lib/pages/rcmd/view.dart

@@ -1,4 +1,7 @@
+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/skeleton/video_card_v.dart';
@@ -6,6 +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/main/index.dart';
 
 import 'controller.dart';
 
@@ -26,15 +30,26 @@ class _RcmdPageState extends State<RcmdPage>
   @override
   void initState() {
     super.initState();
-    _rcmdController.scrollController.addListener(
+    ScrollController scrollController = _rcmdController.scrollController;
+    StreamController<bool> mainStream =
+        Get.find<MainController>().bottomBarStream;
+    scrollController.addListener(
       () {
-        if (_rcmdController.scrollController.position.pixels >=
+        if (scrollController.position.pixels >=
-            _rcmdController.scrollController.position.maxScrollExtent - 200) {
+            scrollController.position.maxScrollExtent - 200) {
           if (!_rcmdController.isLoadingMore) {
             _rcmdController.isLoadingMore = true;
             _rcmdController.onLoad();
           }
         }
+
+        final ScrollDirection direction =
+            scrollController.position.userScrollDirection;
+        if (direction == ScrollDirection.forward) {
+          mainStream.add(true);
+        } else if (direction == ScrollDirection.reverse) {
+          mainStream.add(false);
+        }
       },
     );
   }