diff --git a/analysis_options.yaml b/analysis_options.yaml
index 235b70f..e28af18 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -2,6 +2,9 @@
 # packages, and plugins designed to encourage good coding practices.
 include: package:flutter_lints/flutter.yaml
 
+formatter:
+  page_width: 120
+
 linter:
   # The lint rules applied to this project can be customized in the
   # section below to disable rules from the `package:flutter_lints/flutter.yaml`
diff --git a/lib/l10n/app_en.arb b/lib/l10n/app_en.arb
index 10cc246..b2f685f 100644
--- a/lib/l10n/app_en.arb
+++ b/lib/l10n/app_en.arb
@@ -315,5 +315,15 @@
   "time": "DateTime",
   "nowTimestamp": "Now timestamp",
   "hosts": "Hosts",
-  "toAddress": "To Address"
+  "toAddress": "To Address",
+
+  "appUpdateCheckVersion": "Check for Updates",
+  "appUpdateNotAvailableMsg": "Already Using The Latest Version",
+  "appUpdateDialogTitle": "Update Available",
+  "appUpdateUpdateMsg": "A new version of ProxyPin is available. Would you like to update now?",
+  "appUpdateCurrentVersionLbl": "Current Version",
+  "appUpdateNewVersionLbl": "New Version",
+  "appUpdateUpdateNowBtnTxt": "Update Now",
+  "appUpdateLaterBtnTxt": "Later",
+  "appUpdateIgnoreBtnTxt": "Ignore"
 }
\ No newline at end of file
diff --git a/lib/l10n/app_zh.arb b/lib/l10n/app_zh.arb
index fa218bf..4646793 100644
--- a/lib/l10n/app_zh.arb
+++ b/lib/l10n/app_zh.arb
@@ -314,5 +314,15 @@
   "time": "时间",
   "nowTimestamp": "当前时间戳(秒)",
   "hosts": "Hosts 映射",
-  "toAddress": "映射地址"
+  "toAddress": "映射地址",
+
+  "appUpdateCheckVersion": "检测更新",
+  "appUpdateNotAvailableMsg": "已是最新版本",
+  "appUpdateDialogTitle": "有可用更新",
+  "appUpdateUpdateMsg": "ProxyPin 的新版本现已推出。您想现在更新吗？",
+  "appUpdateCurrentVersionLbl": "当前版本",
+  "appUpdateNewVersionLbl": "新版本",
+  "appUpdateUpdateNowBtnTxt": "现在更新",
+  "appUpdateLaterBtnTxt": "以后再说",
+  "appUpdateIgnoreBtnTxt": "忽略"
 }
\ No newline at end of file
diff --git a/lib/ui/app_update/app_update_repository.dart b/lib/ui/app_update/app_update_repository.dart
new file mode 100644
index 0000000..3ae68c0
--- /dev/null
+++ b/lib/ui/app_update/app_update_repository.dart
@@ -0,0 +1,107 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/cupertino.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:http/http.dart' as http;
+import 'package:proxypin/network/util/logger.dart';
+import 'package:proxypin/ui/app_update/remote_version_entity.dart';
+import 'package:proxypin/ui/component/app_dialog.dart';
+import 'package:proxypin/ui/configuration.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'constants.dart';
+import 'new_version_dialog.dart';
+
+class AppUpdateRepository {
+  static final HttpClient httpClient = HttpClient();
+
+  static Future<void> checkUpdate(BuildContext context, {bool canIgnore = true, bool showToast = false}) async {
+    try {
+      var lastVersion = await getLatestVersion();
+      if (lastVersion == null) {
+        logger.w("[AppUpdate] failed to fetch latest version info");
+        return;
+      }
+
+      if (!context.mounted) return;
+
+      var availableUpdates = compareVersions(AppConfiguration.version, lastVersion.version);
+      if (availableUpdates) {
+        if (canIgnore) {
+          var ignoreVersion = await SharedPreferencesAsync().getString(Constants.ignoreReleaseVersionKey);
+          if (ignoreVersion == lastVersion.version) {
+            logger.d("ignored release [${lastVersion.version}]");
+            return;
+          }
+        }
+
+        logger.d("new version available: $lastVersion");
+
+        if (!context.mounted) return;
+        NewVersionDialog(
+          AppConfiguration.version,
+          lastVersion,
+          canIgnore: true,
+        ).show(context);
+        return;
+      }
+
+      logger.i("already using latest version[${AppConfiguration.version}], last: [${lastVersion.version}]");
+
+      if (showToast) {
+        AppLocalizations localizations = AppLocalizations.of(context)!;
+        CustomToast.success(localizations.appUpdateNotAvailableMsg).show(context);
+      }
+    } catch (e) {
+      logger.e("Error checking for updates: $e");
+      if (showToast) {
+        AppAlertDialog(message: e.toString()).show(context);
+      }
+    }
+  }
+
+  /// Fetches the latest version information from the GitHub releases API.
+  static Future<RemoteVersionEntity?> getLatestVersion({bool includePreReleases = false}) async {
+    final response = await http.get(Uri.parse(Constants.githubReleasesApiUrl));
+    if (response.statusCode != 200 || response.body.isEmpty) {
+      logger.w("[AppUpdate] failed to fetch latest version info");
+      return null;
+    }
+
+    var body = jsonDecode(response.body) as List;
+    final releases = body.map((e) => GithubReleaseParser.parse(e as Map<String, dynamic>));
+    late RemoteVersionEntity latest;
+    if (includePreReleases) {
+      latest = releases.first;
+    } else {
+      latest = releases.firstWhere((e) => e.preRelease == false);
+    }
+
+    logger.d("[AppUpdate] latest version: $latest");
+    return latest;
+  }
+
+  static bool compareVersions(String currentVersion, String latestVersion) {
+    String normalizeVersion(String version) {
+      return version.startsWith('v') ? version.substring(1) : version;
+    }
+
+    List<int> parseVersion(String version) {
+      return normalizeVersion(version).split('.').map(int.parse).toList();
+    }
+
+    List<int> current = parseVersion(currentVersion);
+    List<int> latest = parseVersion(latestVersion);
+
+    for (int i = 0; i < current.length; i++) {
+      if (i >= latest.length || current[i] > latest[i]) {
+        return false; // 当前版本高于最新版本
+      } else if (current[i] < latest[i]) {
+        return true; // 需要更新
+      }
+    }
+
+    return latest.length > current.length; // 最新版本有更多的子版本号
+  }
+}
diff --git a/lib/ui/app_update/constants.dart b/lib/ui/app_update/constants.dart
new file mode 100644
index 0000000..a372e9c
--- /dev/null
+++ b/lib/ui/app_update/constants.dart
@@ -0,0 +1,11 @@
+abstract class Constants {
+  static const githubUrl = "https://github.com/wanghongenpin/proxypin";
+  static const githubReleasesApiUrl =
+      "https://api.github.com/repos/wanghongenpin/proxypin/releases";
+  static const githubLatestReleaseUrl =
+      "https://github.com/wanghongenpin/proxypin/releases/latest";
+
+  static const String ignoreReleaseVersionKey = "ignored_release_version";
+}
+
+const kAnimationDuration = Duration(milliseconds: 250);
diff --git a/lib/ui/app_update/new_version_dialog.dart b/lib/ui/app_update/new_version_dialog.dart
new file mode 100644
index 0000000..157c0c2
--- /dev/null
+++ b/lib/ui/app_update/new_version_dialog.dart
@@ -0,0 +1,94 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:proxypin/network/util/logger.dart';
+import 'package:proxypin/ui/app_update/remote_version_entity.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+import 'constants.dart';
+
+class NewVersionDialog extends StatelessWidget {
+  NewVersionDialog(
+    this.currentVersion,
+    this.newVersion, {
+    this.canIgnore = true,
+  }) : super(key: _dialogKey);
+
+  final String currentVersion;
+  final RemoteVersionEntity newVersion;
+  final bool canIgnore;
+
+  static final _dialogKey = GlobalKey(debugLabel: 'new version dialog');
+
+  Future<void> show(BuildContext context) async {
+    if (_dialogKey.currentContext == null) {
+      return showDialog(
+        context: context,
+        useRootNavigator: true,
+        builder: (context) => this,
+      );
+    } else {
+      logger.d("new version dialog is already open");
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    AppLocalizations localizations = AppLocalizations.of(context)!;
+
+    return AlertDialog(
+      title: Text(localizations.appUpdateDialogTitle),
+      // scrollable: true,
+      content: Container(
+          constraints: BoxConstraints(maxHeight: 230, maxWidth: 500),
+          child: SingleChildScrollView(
+              child: Column(
+            mainAxisSize: MainAxisSize.min,
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Text(localizations.appUpdateUpdateMsg),
+              const SizedBox(height: 5),
+              Text.rich(
+                TextSpan(
+                  children: [
+                    TextSpan(text: "${localizations.appUpdateCurrentVersionLbl}: ", style: theme.textTheme.bodySmall),
+                    TextSpan(text: currentVersion, style: theme.textTheme.labelMedium),
+                  ],
+                ),
+              ),
+              Text.rich(
+                TextSpan(
+                  children: [
+                    TextSpan(text: "${localizations.appUpdateNewVersionLbl}: ", style: theme.textTheme.bodySmall),
+                    TextSpan(text: newVersion.version, style: theme.textTheme.labelMedium),
+                  ],
+                ),
+              ),
+              Text(newVersion.content ?? '', style: theme.textTheme.labelMedium),
+            ],
+          ))),
+      actions: [
+        if (canIgnore)
+          TextButton(
+            onPressed: () async {
+              SharedPreferencesAsync().setString(Constants.ignoreReleaseVersionKey, newVersion.version);
+              logger.i("ignored release [${newVersion.version}]");
+              if (context.mounted) Navigator.pop(context);
+            },
+            child: Text(localizations.appUpdateIgnoreBtnTxt),
+          ),
+        TextButton(
+          onPressed: () => Navigator.pop(context),
+          child: Text(localizations.appUpdateLaterBtnTxt),
+        ),
+        TextButton(
+          onPressed: () async {
+            await launchUrl(Uri.parse(newVersion.url), mode: LaunchMode.externalApplication);
+          },
+          child: Text(localizations.appUpdateUpdateNowBtnTxt),
+        ),
+      ],
+    );
+  }
+}
diff --git a/lib/ui/app_update/remote_version_entity.dart b/lib/ui/app_update/remote_version_entity.dart
new file mode 100644
index 0000000..73613f4
--- /dev/null
+++ b/lib/ui/app_update/remote_version_entity.dart
@@ -0,0 +1,49 @@
+import 'package:proxypin/utils/lang.dart';
+
+class RemoteVersionEntity {
+  final String version;
+  final String buildNumber;
+  final String releaseTag;
+  final bool preRelease;
+  final String url;
+  final String? content;
+  final DateTime publishedAt;
+
+  RemoteVersionEntity({
+    required this.version,
+    required this.buildNumber,
+    required this.releaseTag,
+    required this.preRelease,
+    required this.url,
+    this.content,
+    required this.publishedAt,
+  });
+
+  @override
+  String toString() {
+    return 'RemoteVersionEntity(version: $version, buildNumber: $buildNumber, releaseTag: $releaseTag, preRelease: $preRelease, url: $url, publishedAt: $publishedAt)';
+  }
+}
+
+abstract class GithubReleaseParser {
+  static RemoteVersionEntity parse(Map<String, dynamic> json) {
+    final fullTag = json['tag_name'] as String;
+    final fullVersion = fullTag.removePrefix("v").split("-").first.split("+");
+    var version = fullVersion.first;
+    var buildNumber = fullVersion.elementAtOrElse(1, (index) => "");
+
+    final preRelease = json["prerelease"] as bool;
+    final publishedAt = DateTime.parse(json["published_at"] as String);
+
+    var body = json['body']?.toString().split("English: ");
+    return RemoteVersionEntity(
+        version: version,
+        buildNumber: buildNumber,
+        releaseTag: fullTag,
+        preRelease: preRelease,
+        url: json["html_url"] as String,
+        content: body?.last,
+        publishedAt: publishedAt);
+  }
+}
+
diff --git a/lib/ui/component/app_dialog.dart b/lib/ui/component/app_dialog.dart
new file mode 100644
index 0000000..3401057
--- /dev/null
+++ b/lib/ui/component/app_dialog.dart
@@ -0,0 +1,124 @@
+import 'package:flutter/material.dart';
+import 'package:toastification/toastification.dart';
+
+class AppAlertDialog extends StatelessWidget {
+  const AppAlertDialog({
+    super.key,
+    this.title,
+    required this.message,
+  });
+
+  final String? title;
+  final String message;
+
+  factory AppAlertDialog.fromErr(({String type, String? message}) err) => AppAlertDialog(
+        title: err.message == null ? null : err.type,
+        message: err.message ?? err.type,
+      );
+
+  Future<void> show(BuildContext context) async {
+    await showDialog(
+      context: context,
+      useRootNavigator: true,
+      builder: (context) => this,
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    final localizations = MaterialLocalizations.of(context);
+
+    return AlertDialog(
+      title: title != null ? Text(title!) : null,
+      content: SingleChildScrollView(
+        child: SizedBox(
+          width: 468,
+          child: Text(message),
+        ),
+      ),
+      actions: [
+        TextButton(
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+          child: Text(localizations.okButtonLabel),
+        ),
+      ],
+    );
+  }
+}
+
+enum AlertType {
+  info,
+  error,
+  success;
+
+  ToastificationType get _toastificationType => switch (this) {
+        success => ToastificationType.success,
+        error => ToastificationType.error,
+        info => ToastificationType.info,
+      };
+}
+
+class CustomToast extends StatelessWidget {
+  const CustomToast(
+    this.message, {
+    super.key,
+    this.type = AlertType.info,
+    this.icon,
+    this.duration = const Duration(seconds: 3),
+  });
+
+  const CustomToast.error(
+    this.message, {
+    super.key,
+    this.duration = const Duration(seconds: 5),
+  })  : type = AlertType.error,
+        icon = Icons.error;
+
+  const CustomToast.success(
+    this.message, {
+    super.key,
+    this.duration = const Duration(seconds: 3),
+  })  : type = AlertType.success,
+        icon = Icons.check_circle;
+
+  final String message;
+  final AlertType type;
+  final IconData? icon;
+  final Duration duration;
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      decoration: BoxDecoration(
+        borderRadius: const BorderRadius.all(Radius.circular(4)),
+        color: Theme.of(context).colorScheme.surface,
+      ),
+      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
+      child: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          Flexible(child: Text(message)),
+        ],
+      ),
+    );
+  }
+
+  void show(BuildContext context) {
+    toastification.show(
+      context: context,
+      title: Text(message),
+      icon: icon == null ? null : Icon(icon),
+      type: type._toastificationType,
+      alignment: Alignment.bottomLeft,
+      autoCloseDuration: duration,
+      style: ToastificationStyle.fillColored,
+      pauseOnHover: true,
+      showProgressBar: false,
+      dragToClose: true,
+      closeOnClick: true,
+      closeButtonShowType: CloseButtonShowType.onHover,
+    );
+  }
+}
diff --git a/lib/ui/configuration.dart b/lib/ui/configuration.dart
index 04c11ce..c43b8e0 100644
--- a/lib/ui/configuration.dart
+++ b/lib/ui/configuration.dart
@@ -63,6 +63,8 @@ class ThemeModel {
 }
 
 class AppConfiguration {
+  static const String version = "1.1.8";
+
   ValueNotifier<bool> globalChange = ValueNotifier(false);
 
   ThemeModel _theme = ThemeModel();
diff --git a/lib/ui/desktop/desktop.dart b/lib/ui/desktop/desktop.dart
index 72a4912..d8fc7e8 100644
--- a/lib/ui/desktop/desktop.dart
+++ b/lib/ui/desktop/desktop.dart
@@ -35,6 +35,7 @@ import 'package:proxypin/ui/desktop/request/list.dart';
 import 'package:proxypin/ui/desktop/toolbar/toolbar.dart';
 import 'package:proxypin/utils/listenable_list.dart';
 
+import '../app_update/app_update_repository.dart';
 import '../component/split_view.dart';
 
 /// @author wanghongen
@@ -93,6 +94,8 @@ class _DesktopHomePagePageState extends State<DesktopHomePage> implements EventL
       WidgetsBinding.instance.addPostFrameCallback((_) {
         showUpgradeNotice();
       });
+    } else {
+      AppUpdateRepository.checkUpdate(context);
     }
   }
 
diff --git a/lib/ui/desktop/toolbar/setting/about.dart b/lib/ui/desktop/toolbar/setting/about.dart
new file mode 100644
index 0000000..79a558d
--- /dev/null
+++ b/lib/ui/desktop/toolbar/setting/about.dart
@@ -0,0 +1,82 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:proxypin/ui/app_update/app_update_repository.dart';
+import 'package:proxypin/ui/configuration.dart';
+import 'package:url_launcher/url_launcher.dart';
+
+class DesktopAbout extends StatefulWidget {
+  const DesktopAbout({super.key});
+
+  @override
+  State<StatefulWidget> createState() {
+    return _AppUpdateStateChecking();
+  }
+}
+
+class _AppUpdateStateChecking extends State<DesktopAbout> {
+  bool checkUpdating = false;
+
+  AppLocalizations get localizations => AppLocalizations.of(context)!;
+
+  @override
+  Widget build(BuildContext context) {
+    bool isCN = Localizations.localeOf(context) == const Locale.fromSubtags(languageCode: 'zh');
+    String gitHub = "https://github.com/wanghongenpin/proxypin";
+
+    return AlertDialog(
+      titlePadding: const EdgeInsets.only(left: 20, top: 10, right: 15),
+      title: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
+        const Expanded(child: SizedBox()),
+        Text(localizations.about, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
+        const Expanded(child: SizedBox()),
+        Align(alignment: Alignment.topRight, child: CloseButton())
+      ]),
+      content: SizedBox(
+          width: 360,
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: [
+              const Text("ProxyPin", style: TextStyle(fontSize: 20)),
+              const SizedBox(height: 10),
+              Padding(
+                  padding: const EdgeInsets.only(left: 10, right: 10),
+                  child:
+                      Text(isCN ? "全平台开源免费抓包软件" : "Full platform open source free capture HTTP(S) traffic software")),
+              const SizedBox(height: 10),
+              Text("v${AppConfiguration.version}"),
+              const SizedBox(height: 10),
+              ListTile(
+                  title: Text('GitHub'),
+                  trailing: const Icon(Icons.open_in_new, size: 22),
+                  onTap: () => launchUrl(Uri.parse(gitHub))),
+              ListTile(
+                  title: Text(localizations.feedback),
+                  trailing: const Icon(Icons.open_in_new, size: 22),
+                  onTap: () => launchUrl(Uri.parse("$gitHub/issues"))),
+              ListTile(
+                  title: Text(localizations.appUpdateCheckVersion),
+                  trailing: checkUpdating
+                      ? const SizedBox(width: 22, height: 22, child: CircularProgressIndicator())
+                      : const Icon(Icons.sync, size: 22),
+                  onTap: () async {
+                    if (checkUpdating) {
+                      return;
+                    }
+                    setState(() {
+                      checkUpdating = true;
+                    });
+                    await AppUpdateRepository.checkUpdate(context, canIgnore: false, showToast: true);
+                    setState(() {
+                      checkUpdating = false;
+                    });
+                  }),
+              ListTile(
+                  title: Text(isCN ? "下载地址" : "Download"),
+                  trailing: const Icon(Icons.open_in_new, size: 22),
+                  onTap: () => launchUrl(
+                      Uri.parse(isCN ? "https://gitee.com/wanghongenpin/proxypin/releases" : "$gitHub/releases")))
+            ],
+          )),
+    );
+  }
+}
diff --git a/lib/ui/desktop/toolbar/setting/setting.dart b/lib/ui/desktop/toolbar/setting/setting.dart
index 9ea8ec6..8fbc7da 100644
--- a/lib/ui/desktop/toolbar/setting/setting.dart
+++ b/lib/ui/desktop/toolbar/setting/setting.dart
@@ -24,10 +24,10 @@ import 'package:proxypin/network/components/manager/request_block_manager.dart';
 import 'package:proxypin/network/util/system_proxy.dart';
 import 'package:proxypin/ui/component/multi_window.dart';
 import 'package:proxypin/ui/component/widgets.dart';
+import 'package:proxypin/ui/desktop/toolbar/setting/about.dart';
 import 'package:proxypin/ui/desktop/toolbar/setting/external_proxy.dart';
 import 'package:proxypin/ui/desktop/toolbar/setting/hosts.dart';
 import 'package:proxypin/ui/desktop/toolbar/setting/request_block.dart';
-import 'package:url_launcher/url_launcher.dart';
 
 import 'filter.dart';
 
@@ -56,7 +56,6 @@ class _SettingState extends State<Setting> {
 
   @override
   Widget build(BuildContext context) {
-
     return MenuAnchor(
       builder: (context, controller, child) {
         return IconButton(
@@ -94,49 +93,7 @@ class _SettingState extends State<Setting> {
   }
 
   showAbout() {
-    bool isCN = Localizations.localeOf(context) == const Locale.fromSubtags(languageCode: 'zh');
-
-    String gitHub = "https://github.com/wanghongenpin/proxypin";
-
-    showDialog(
-        context: context,
-        builder: (context) {
-          return AlertDialog(
-            titlePadding: const EdgeInsets.only(left: 20, top: 10, right: 15),
-            title: Row(mainAxisAlignment: MainAxisAlignment.center, children: [
-              const Expanded(child: SizedBox()),
-              Text(localizations.about, style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w500)),
-              const Expanded(child: SizedBox()),
-              Align(alignment: Alignment.topRight, child: CloseButton())
-            ]),
-            content: Column(
-              mainAxisSize: MainAxisSize.min,
-              children: [
-                const Text("ProxyPin", style: TextStyle(fontSize: 20)),
-                const SizedBox(height: 10),
-                Padding(
-                    padding: const EdgeInsets.only(left: 10, right: 10),
-                    child:
-                        Text(isCN ? "全平台开源免费抓包软件" : "Full platform open source free capture HTTP(S) traffic software")),
-                const SizedBox(height: 10),
-                const Text("V1.1.7"),
-                const SizedBox(height: 10),
-                ListTile(
-                    title: Text('GitHub', textAlign: TextAlign.center, style: TextStyle(color: Colors.blue)),
-                    onTap: () => launchUrl(Uri.parse(gitHub))),
-                ListTile(
-                    title:
-                        Text(localizations.feedback, textAlign: TextAlign.center, style: TextStyle(color: Colors.blue)),
-                    onTap: () => launchUrl(Uri.parse("$gitHub/issues"))),
-                ListTile(
-                    title: Text(isCN ? "下载地址" : "Download",
-                        textAlign: TextAlign.center, style: TextStyle(color: Colors.blue)),
-                    onTap: () => launchUrl(
-                        Uri.parse(isCN ? "https://gitee.com/wanghongenpin/proxypin/releases" : "$gitHub/releases")))
-              ],
-            ),
-          );
-        });
+    showDialog(context: context, builder: (context) => DesktopAbout());
   }
 
   ///设置外部代理地址
diff --git a/lib/utils/lang.dart b/lib/utils/lang.dart
index d92a916..a672280 100644
--- a/lib/utils/lang.dart
+++ b/lib/utils/lang.dart
@@ -13,6 +13,15 @@ extension ListFirstWhere<T> on Iterable<T> {
       return null;
     }
   }
+
+  T elementAtOrElse(int index, T Function(int index) defaultValue) {
+    if (index < 0) return defaultValue(index);
+    var count = 0;
+    for (final element in this) {
+      if (index == count++) return element;
+    }
+    return defaultValue(index);
+  }
 }
 
 extension DateTimeFormat on DateTime {
@@ -102,6 +111,14 @@ class Strings {
 /// 这样会导致，换行时上一行可能会留很大的空白区域
 /// 把每个字符插入一个0宽的字符， \u{200B}
 extension StringEnhance on String {
+
+  String removePrefix(String prefix) {
+    if (startsWith(prefix)) {
+      return substring(prefix.length, length);
+    } else {
+      return this;
+    }
+  }
   String fixAutoLines() {
     return Characters(this).join('\u{200B}');
   }
diff --git a/pubspec.yaml b/pubspec.yaml
index 923308b..5ac1bec 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -39,6 +39,7 @@ dependencies:
   shared_preferences: ^2.5.3
   image_pickers: ^2.0.6
   url_launcher: ^6.3.1
+  toastification: ^3.0.2
 
   qr_flutter: ^4.1.0
   flutter_qr_reader_copy: ^1.0.9