diff --git a/lib/common/widgets/progress_bar/segment_progress_bar.dart b/lib/common/widgets/progress_bar/segment_progress_bar.dart
index aec95d8a5..875822dc4 100644
--- a/lib/common/widgets/progress_bar/segment_progress_bar.dart
+++ b/lib/common/widgets/progress_bar/segment_progress_bar.dart
@@ -17,7 +17,9 @@
 
 import 'dart:ui' as ui;
 
-import 'package:flutter/foundation.dart' show listEquals, kDebugMode;
+import 'package:PiliPlus/utils/extension/iterable_ext.dart';
+import 'package:collection/collection.dart';
+import 'package:flutter/foundation.dart' show listEquals;
 import 'package:flutter/gestures.dart' show TapGestureRecognizer;
 import 'package:flutter/material.dart';
 import 'package:flutter/rendering.dart' show BoxHitTestEntry;
@@ -223,6 +225,8 @@ class RenderViewPointProgressBar
     final canvas = context.canvas;
     final paint = Paint()..style = PaintingStyle.fill;
 
+    assert(segments.isSortedBy((i) => i.end));
+
     canvas.drawRect(
       Rect.fromLTRB(0, 0, size.width, _barHeight),
       paint..color = Colors.grey[600]!.withValues(alpha: 0.45),
@@ -305,19 +309,16 @@ class RenderViewPointProgressBar
     }
   }
 
+  @pragma('vm:notify-debugger-on-exception')
   void _onTapUp(TapUpDetails details) {
     try {
       final seg = details.localPosition.dx / size.width;
-      final item = _segments
-          .where((item) => item.end >= seg)
-          .reduce((a, b) => a.end < b.end ? a : b);
+      final item = _segments[_segments.lowerBoundByKey((i) => i.end, seg)];
       if (item.from case final from?) {
         _onSeek?.call(Duration(seconds: from));
       }
       // if (kDebugMode) debugPrint('${item.title},,${item.from}');
-    } catch (e) {
-      if (kDebugMode) rethrow;
-    }
+    } catch (_) {}
   }
 }
 
diff --git a/lib/http/search.dart b/lib/http/search.dart
index cbcf752ca..c458050eb 100644
--- a/lib/http/search.dart
+++ b/lib/http/search.dart
@@ -10,7 +10,6 @@ import 'package:PiliPlus/models_new/dynamic/dyn_topic_pub_search/data.dart';
 import 'package:PiliPlus/models_new/pgc/pgc_info_model/result.dart';
 import 'package:PiliPlus/models_new/search/search_rcmd/data.dart';
 import 'package:PiliPlus/models_new/search/search_trending/data.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/request_utils.dart';
 import 'package:PiliPlus/utils/wbi_sign.dart';
 import 'package:dio/dio.dart';
@@ -183,7 +182,8 @@ abstract final class SearchHttp {
     if (res.data['code'] == 0) {
       if (res.data['data'] case List list) {
         return part != null
-            ? (list.getOrNull(part - 1)?['cid'] ?? list.firstOrNull?['cid'])
+            ? (list.elementAtOrNull(part - 1)?['cid'] ??
+                  list.firstOrNull?['cid'])
             : list.firstOrNull?['cid'];
       } else {
         return null;
diff --git a/lib/pages/dynamics/controller.dart b/lib/pages/dynamics/controller.dart
index 4301e8cab..b75f8a71c 100644
--- a/lib/pages/dynamics/controller.dart
+++ b/lib/pages/dynamics/controller.dart
@@ -10,7 +10,6 @@ import 'package:PiliPlus/pages/common/common_controller.dart';
 import 'package:PiliPlus/pages/dynamics_tab/controller.dart';
 import 'package:PiliPlus/services/account_service.dart';
 import 'package:PiliPlus/utils/accounts.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/extension/scroll_controller_ext.dart';
 import 'package:PiliPlus/utils/extension/string_ext.dart';
 import 'package:PiliPlus/utils/storage_pref.dart';
@@ -33,7 +32,7 @@ class DynamicsController extends GetxController
       LoadingState<FollowUpModel>.loading().obs;
   late int _upPage = 1;
   late bool _upEnd = false;
-  List<UpItem>? _cacheUpList;
+  Set<UpItem>? _cacheUpList;
   late final _showAllUp = Pref.dynamicsShowAllFollowedUp;
   late bool showLiveUp = Pref.expandDynLivePanel;
 
@@ -150,7 +149,7 @@ class DynamicsController extends GetxController
     final first = res.first;
     if (first case final Success<FollowUpModel> i) {
       final data = i.response;
-      final second = res.getOrNull(1);
+      final second = res.elementAtOrNull(1);
       if (second case final Success<FollowData> j) {
         final data1 = j.response;
         final list1 = data1.list;
@@ -161,8 +160,7 @@ class DynamicsController extends GetxController
         }
 
         final list = data.upList;
-        _cacheUpList = List<UpItem>.from(list);
-        list.addAll(list1..removeWhere(list.contains));
+        list.addAll(list1..removeWhere((_cacheUpList = list.toSet()).contains));
       }
       if (!_showAllUp) {
         if (data.hasMore == false || data.offset.isNullOrEmpty) {
diff --git a/lib/pages/fav_sort/view.dart b/lib/pages/fav_sort/view.dart
index e3ff614cc..cc61cddf7 100644
--- a/lib/pages/fav_sort/view.dart
+++ b/lib/pages/fav_sort/view.dart
@@ -3,7 +3,6 @@ import 'package:PiliPlus/http/loading_state.dart';
 import 'package:PiliPlus/models_new/fav/fav_detail/media.dart';
 import 'package:PiliPlus/pages/fav_detail/controller.dart';
 import 'package:PiliPlus/pages/fav_detail/widget/fav_video_card.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
@@ -84,7 +83,7 @@ class _FavSortPageState extends State<FavSortPage> {
     }
 
     final oldItem = sortList[oldIndex];
-    final newItem = sortList.getOrNull(
+    final newItem = sortList.elementAtOrNull(
       oldIndex > newIndex ? newIndex - 1 : newIndex,
     );
     sort.add(
diff --git a/lib/pages/member_profile/view.dart b/lib/pages/member_profile/view.dart
index 7a3f7a146..ef508c5b2 100644
--- a/lib/pages/member_profile/view.dart
+++ b/lib/pages/member_profile/view.dart
@@ -15,7 +15,6 @@ import 'package:PiliPlus/utils/accounts.dart';
 import 'package:PiliPlus/utils/app_sign.dart';
 import 'package:PiliPlus/utils/date_utils.dart';
 import 'package:PiliPlus/utils/extension/file_ext.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/extension/theme_ext.dart';
 import 'package:PiliPlus/utils/page_utils.dart';
 import 'package:PiliPlus/utils/platform_utils.dart';
@@ -483,7 +482,7 @@ class _EditProfilePageState extends State<EditProfilePage> {
       if (pickedFile != null && mounted) {
         String? mimeType = lookupMimeType(
           pickedFile.path,
-        )?.split('/').getOrNull(1);
+        )?.split('/').elementAtOrNull(1);
         if (mimeType == 'gif') {
           SmartDialog.showToast('不能选GIF');
           return;
diff --git a/lib/pages/whisper/widgets/item.dart b/lib/pages/whisper/widgets/item.dart
index 048dc23b8..e22e101bd 100644
--- a/lib/pages/whisper/widgets/item.dart
+++ b/lib/pages/whisper/widgets/item.dart
@@ -9,7 +9,6 @@ import 'package:PiliPlus/grpc/bilibili/app/im/v1.pb.dart'
 import 'package:PiliPlus/models/common/badge_type.dart';
 import 'package:PiliPlus/pages/whisper_secondary/view.dart';
 import 'package:PiliPlus/utils/date_utils.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/extension/num_ext.dart';
 import 'package:PiliPlus/utils/extension/theme_ext.dart';
 import 'package:PiliPlus/utils/page_utils.dart';
@@ -190,7 +189,7 @@ class WhisperSessionItem extends StatelessWidget {
       leading: Builder(
         builder: (context) {
           final pendant = item.sessionInfo.avatar.fallbackLayers.layers
-              .getOrNull(1)
+              .elementAtOrNull(1)
               ?.resource;
           final official = item
               .sessionInfo
diff --git a/lib/pages/whisper_detail/view.dart b/lib/pages/whisper_detail/view.dart
index 70bc69310..4afe1230d 100644
--- a/lib/pages/whisper_detail/view.dart
+++ b/lib/pages/whisper_detail/view.dart
@@ -16,7 +16,6 @@ import 'package:PiliPlus/pages/whisper_detail/controller.dart';
 import 'package:PiliPlus/pages/whisper_detail/widget/chat_item.dart';
 import 'package:PiliPlus/pages/whisper_link_setting/view.dart';
 import 'package:PiliPlus/utils/extension/file_ext.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/extension/num_ext.dart';
 import 'package:PiliPlus/utils/extension/widget_ext.dart';
 import 'package:PiliPlus/utils/feed_back.dart';
@@ -360,7 +359,9 @@ class _WhisperDetailPageState
                         );
                         if (result case Success(:final response)) {
                           final mimeType =
-                              lookupMimeType(path)?.split('/').getOrNull(1) ??
+                              lookupMimeType(
+                                path,
+                              )?.split('/').elementAtOrNull(1) ??
                               'jpg';
                           final picMsg = {
                             'url': response.imageUrl,
diff --git a/lib/utils/accounts/account_type_adapter.dart b/lib/utils/accounts/account_type_adapter.dart
index 328af3479..abe1b8aa4 100644
--- a/lib/utils/accounts/account_type_adapter.dart
+++ b/lib/utils/accounts/account_type_adapter.dart
@@ -1,5 +1,4 @@
 import 'package:PiliPlus/models/common/account_type.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:hive/hive.dart';
 
 class AccountTypeAdapter extends TypeAdapter<AccountType> {
@@ -8,7 +7,7 @@ class AccountTypeAdapter extends TypeAdapter<AccountType> {
 
   @override
   AccountType read(BinaryReader reader) =>
-      AccountType.values.getOrNull(reader.readByte()) ?? AccountType.main;
+      AccountType.values.elementAtOrNull(reader.readByte()) ?? AccountType.main;
 
   @override
   void write(BinaryWriter writer, AccountType obj) {
diff --git a/lib/utils/app_scheme.dart b/lib/utils/app_scheme.dart
index 4758a0ea9..174a045d0 100644
--- a/lib/utils/app_scheme.dart
+++ b/lib/utils/app_scheme.dart
@@ -14,7 +14,6 @@ import 'package:PiliPlus/pages/live/view.dart';
 import 'package:PiliPlus/pages/rank/view.dart';
 import 'package:PiliPlus/pages/subscription_detail/view.dart';
 import 'package:PiliPlus/pages/video/reply_reply/view.dart';
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/id_utils.dart';
 import 'package:PiliPlus/utils/page_utils.dart';
 import 'package:PiliPlus/utils/request_utils.dart';
@@ -579,7 +578,7 @@ abstract final class PiliScheme {
     }
     final first = pathSegments.first;
     final String? area = const ['mobile', 'h5', 'v'].contains(first)
-        ? pathSegments.getOrNull(1)
+        ? pathSegments.elementAtOrNull(1)
         : first;
     // if (kDebugMode) debugPrint('area: $area');
     switch (area) {
diff --git a/lib/utils/cache_manager.dart b/lib/utils/cache_manager.dart
index a8e327b1b..4dc29623c 100644
--- a/lib/utils/cache_manager.dart
+++ b/lib/utils/cache_manager.dart
@@ -1,7 +1,6 @@
 import 'dart:async';
 import 'dart:io';
 
-import 'package:PiliPlus/utils/extension/iterable_ext.dart';
 import 'package:PiliPlus/utils/platform_utils.dart';
 import 'package:PiliPlus/utils/storage_pref.dart';
 import 'package:path_provider/path_provider.dart';
@@ -55,7 +54,7 @@ abstract final class CacheManager {
       value = value / 1024;
     }
     String size = value.toStringAsFixed(2);
-    return size + (unitArr.getOrNull(index) ?? '');
+    return size + (unitArr.elementAtOrNull(index) ?? '');
   }
 
   // 清除 Library/Caches 目录及文件缓存
diff --git a/lib/utils/extension/iterable_ext.dart b/lib/utils/extension/iterable_ext.dart
index 08d35c167..d30844ac0 100644
--- a/lib/utils/extension/iterable_ext.dart
+++ b/lib/utils/extension/iterable_ext.dart
@@ -24,13 +24,6 @@ extension IterableExt<T> on Iterable<T> {
 }
 
 extension ListExt<T> on List<T> {
-  T? getOrNull(int index) {
-    if (index < 0 || index >= length) {
-      return null;
-    }
-    return this[index];
-  }
-
   bool removeFirstWhere(bool Function(T) test) {
     final index = indexWhere(test);
     if (index != -1) {
@@ -50,4 +43,27 @@ extension ListExt<T> on List<T> {
   ) {
     return where(test).reduceOrNull(combine) ?? reduce(combine);
   }
+
+  /// from [algorithms.lowerBoundBy].
+  int lowerBoundByKey<K extends Comparable<K>>(
+    K Function(T element) keyOf,
+    K key, [
+    int start = 0,
+    int? end,
+  ]) {
+    end = RangeError.checkValidRange(start, end, length);
+    var min = start;
+    var max = end;
+    while (min < max) {
+      var mid = min + ((max - min) >> 1);
+      var element = this[mid];
+      var comp = keyOf(element).compareTo(key);
+      if (comp < 0) {
+        min = mid + 1;
+      } else {
+        max = mid;
+      }
+    }
+    return min;
+  }
 }
diff --git a/lib/utils/storage_pref.dart b/lib/utils/storage_pref.dart
index c66079204..26abf286a 100644
--- a/lib/utils/storage_pref.dart
+++ b/lib/utils/storage_pref.dart
@@ -461,7 +461,7 @@ abstract final class Pref {
     SuperResolutionType? superResolutionType;
     final index = _setting.get(SettingBoxKey.superResolutionType);
     if (index != null) {
-      superResolutionType = SuperResolutionType.values.getOrNull(index);
+      superResolutionType = SuperResolutionType.values.elementAtOrNull(index);
     }
     return superResolutionType ?? SuperResolutionType.disable;
   }