tweaks (#1821)

* opt: _onTapUp

* opt: set contains

* opt: elementAtOrNull

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) {

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) {

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

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;
+  }
 }

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;
   }