diff --git a/lib/pages/common/publish/common_publish_page.dart b/lib/pages/common/publish/common_publish_page.dart
index 61c97565a..81bb57ae3 100644
--- a/lib/pages/common/publish/common_publish_page.dart
+++ b/lib/pages/common/publish/common_publish_page.dart
@@ -34,7 +34,7 @@ abstract class CommonPublishPageState<T extends CommonPublishPage>
   late final RxBool readOnly = false.obs;
   late final RxBool enablePublish = false.obs;
 
-  bool? hasPub;
+  bool hasPub = false;
   void initPubState();
 
   @override
@@ -57,7 +57,7 @@ abstract class CommonPublishPageState<T extends CommonPublishPage>
 
   @override
   void dispose() {
-    if (hasPub != true) {
+    if (!hasPub) {
       onSave();
     }
     focusNode.dispose();
diff --git a/lib/pages/common/publish/common_rich_text_pub_page.dart b/lib/pages/common/publish/common_rich_text_pub_page.dart
index b11f37bac..623fd3fce 100644
--- a/lib/pages/common/publish/common_rich_text_pub_page.dart
+++ b/lib/pages/common/publish/common_rich_text_pub_page.dart
@@ -13,6 +13,7 @@ import 'package:PiliPlus/models_new/live/live_emote/emoticon.dart';
 import 'package:PiliPlus/models_new/upload_bfs/data.dart';
 import 'package:PiliPlus/pages/common/publish/common_publish_page.dart';
 import 'package:PiliPlus/pages/dynamics_mention/view.dart';
+import 'package:PiliPlus/utils/extension.dart';
 import 'package:PiliPlus/utils/feed_back.dart';
 import 'package:PiliPlus/utils/page_utils.dart';
 import 'package:dio/dio.dart' show CancelToken;
@@ -58,6 +59,16 @@ abstract class CommonRichTextPubPageState<T extends CommonRichTextPubPage>
     }
   }
 
+  @override
+  void dispose() {
+    if (hasPub) {
+      for (var i in pathList) {
+        File(i).delSync();
+      }
+    }
+    super.dispose();
+  }
+
   @override
   void didChangeDependencies() {
     editController.richStyle = null;
diff --git a/lib/pages/video/reply_new/view.dart b/lib/pages/video/reply_new/view.dart
index 056505f82..cc802f538 100644
--- a/lib/pages/video/reply_new/view.dart
+++ b/lib/pages/video/reply_new/view.dart
@@ -25,7 +25,6 @@ import 'package:PiliPlus/utils/utils.dart';
 import 'package:flutter/material.dart' hide TextField;
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart' hide ContextExtensionss;
-import 'package:path_provider/path_provider.dart';
 
 class ReplyPage extends CommonRichTextPubPage {
   final int oid;
@@ -377,9 +376,8 @@ class _ReplyPageState extends CommonRichTextPubPageState<ReplyPage> {
                         .videoPlayerController
                         ?.screenshot(format: 'image/png');
                     if (res != null) {
-                      final tempDir = await getTemporaryDirectory();
-                      File file = File(
-                        '${tempDir.path}/${Utils.generateRandomString(8)}.png',
+                      final file = File(
+                        '${await Utils.temporaryDirectory}/${Utils.generateRandomString(8)}.png',
                       );
                       await file.writeAsBytes(res);
                       pathList.add(file.path);
diff --git a/lib/utils/extension.dart b/lib/utils/extension.dart
index a3fef920e..3d9ec25f3 100644
--- a/lib/utils/extension.dart
+++ b/lib/utils/extension.dart
@@ -1,3 +1,5 @@
+import 'dart:io';
+
 import 'package:PiliPlus/common/widgets/dialog/dialog.dart';
 import 'package:PiliPlus/grpc/bilibili/app/im/v1.pbenum.dart'
     show IMSettingType, ThreeDotItemType;
@@ -210,6 +212,14 @@ extension ThreeDotItemTypeExt on ThreeDotItemType {
   }
 }
 
+extension FileExt on File {
+  void delSync({bool recursive = false}) {
+    try {
+      deleteSync(recursive: recursive);
+    } catch (_) {}
+  }
+}
+
 extension SizeExt on Size {
   bool get isPortrait => width < 600 || height >= width;
 }
diff --git a/lib/utils/image_util.dart b/lib/utils/image_util.dart
index c97583950..2ac3de097 100644
--- a/lib/utils/image_util.dart
+++ b/lib/utils/image_util.dart
@@ -10,7 +10,6 @@ import 'package:flutter/material.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:intl/intl.dart' show DateFormat;
 import 'package:live_photo_maker/live_photo_maker.dart';
-import 'package:path_provider/path_provider.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:saver_gallery/saver_gallery.dart';
 import 'package:share_plus/share_plus.dart';
@@ -24,17 +23,19 @@ class ImageUtil {
   static Future<void> onShareImg(String url) async {
     try {
       SmartDialog.showLoading();
-      final temp = await getTemporaryDirectory();
-      var path = '${temp.path}/${Utils.getFileName(url)}';
-      var res = await Request().downloadFile(url.http2https, path);
+      final path =
+          '${await Utils.temporaryDirectory}/${Utils.getFileName(url)}';
+      final res = await Request().downloadFile(url.http2https, path);
       SmartDialog.dismiss();
       if (res.statusCode == 200) {
-        SharePlus.instance.share(
-          ShareParams(
-            files: [XFile(path)],
-            sharePositionOrigin: await Utils.sharePositionOrigin,
-          ),
-        );
+        await SharePlus.instance
+            .share(
+              ShareParams(
+                files: [XFile(path)],
+                sharePositionOrigin: await Utils.sharePositionOrigin,
+              ),
+            )
+            .whenComplete(() => File(path).delSync());
       }
     } catch (e) {
       SmartDialog.showToast(e.toString());
@@ -108,7 +109,7 @@ class ImageUtil {
       }
       if (!silentDownImg) SmartDialog.showLoading(msg: '正在下载');
 
-      String tmpPath = (await getTemporaryDirectory()).path;
+      String tmpPath = await Utils.temporaryDirectory;
       late String imageName = "cover_${Utils.getFileName(url)}";
       late String imagePath = '$tmpPath/$imageName';
       String videoName = "video_${Utils.getFileName(liveUrl)}";
@@ -121,13 +122,19 @@ class ImageUtil {
         final res1 = await Request().downloadFile(url.http2https, imagePath);
         if (res1.statusCode != 200) throw '${res1.statusCode}';
         if (!silentDownImg) SmartDialog.showLoading(msg: '正在保存');
-        bool success = await LivePhotoMaker.create(
-          coverImage: imagePath,
-          imagePath: null,
-          voicePath: videoPath,
-          width: width,
-          height: height,
-        );
+        bool success =
+            await LivePhotoMaker.create(
+              coverImage: imagePath,
+              imagePath: null,
+              voicePath: videoPath,
+              width: width,
+              height: height,
+            ).whenComplete(
+              () {
+                File(videoPath).delSync();
+                File(imagePath).delSync();
+              },
+            );
         if (success) {
           SmartDialog.showToast(' Live Photo 已保存 ');
         } else {
@@ -141,7 +148,7 @@ class ImageUtil {
           fileName: videoName,
           androidRelativePath: "Pictures/PiliPlus",
           skipIfExists: false,
-        );
+        ).whenComplete(() => File(videoPath).delSync());
         if (result.isSuccess) {
           SmartDialog.showToast(' 已保存 ');
         } else {
@@ -174,12 +181,12 @@ class ImageUtil {
     }
     try {
       final isAndroid = Platform.isAndroid;
-      final tempPath = (await getTemporaryDirectory()).path;
+      final tempPath = await Utils.temporaryDirectory;
       final futures = imgList.map((url) async {
-        var name = Utils.getFileName(url);
-        var filePath = '$tempPath/$name';
+        final name = Utils.getFileName(url);
+        final filePath = '$tempPath/$name';
 
-        var response = await Request().downloadFile(
+        final response = await Request().downloadFile(
           url.http2https,
           filePath,
           cancelToken: cancelToken,
@@ -192,25 +199,26 @@ class ImageUtil {
               fileName: name,
               androidRelativePath: "Pictures/PiliPlus",
               skipIfExists: false,
-            );
+            ).whenComplete(() => File(filePath).delSync());
           }
         }
-        return {
-          'filePath': filePath,
-          'name': name,
-          'statusCode': response.statusCode,
-        };
+        return (
+          filePath: filePath,
+          name: name,
+          statusCode: response.statusCode,
+        );
       });
       final result = await Future.wait(futures, eagerError: true);
       if (!isAndroid) {
-        for (Map res in result) {
-          if (res['statusCode'] == 200) {
+        for (var res in result) {
+          if (res.statusCode == 200) {
             await SaverGallery.saveFile(
-              filePath: res['filePath'],
-              fileName: res['name'],
+              filePath: res.filePath,
+              fileName: res.name,
               androidRelativePath: "Pictures/PiliPlus",
               skipIfExists: false,
             );
+            File(res.filePath).delSync();
           }
         }
       }
diff --git a/lib/utils/utils.dart b/lib/utils/utils.dart
index 14c9eb83f..4ae44511d 100644
--- a/lib/utils/utils.dart
+++ b/lib/utils/utils.dart
@@ -8,6 +8,7 @@ import 'package:flutter/services.dart';
 import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
 import 'package:get/get.dart';
 import 'package:path/path.dart' as path;
+import 'package:path_provider/path_provider.dart';
 import 'package:share_plus/share_plus.dart';
 
 class Utils {
@@ -21,30 +22,26 @@ class Utils {
   static int? _sdkInt;
 
   static Future<int> get sdkInt async {
-    if (_sdkInt != null) {
-      return _sdkInt!;
-    }
-    _sdkInt = (await DeviceInfoPlugin().androidInfo).version.sdkInt;
-    return _sdkInt!;
+    return _sdkInt ??= (await DeviceInfoPlugin().androidInfo).version.sdkInt;
   }
 
   static bool? _isIpad;
 
-  static Future<bool> isIpad() async {
-    if (_isIpad != null) {
-      return _isIpad!;
-    }
-    if (!Platform.isIOS) {
-      return false;
-    }
-    DeviceInfoPlugin deviceInfo = DeviceInfoPlugin();
-    IosDeviceInfo info = await deviceInfo.iosInfo;
-    _isIpad = info.model.toLowerCase().contains("ipad");
-    return _isIpad!;
+  static Future<bool> get isIpad async {
+    if (!Platform.isIOS) return false;
+    return _isIpad ??= (await DeviceInfoPlugin().iosInfo).model
+        .toLowerCase()
+        .contains('ipad');
+  }
+
+  static String? _tempDir;
+
+  static Future<String> get temporaryDirectory async {
+    return _tempDir ??= (await getTemporaryDirectory()).path;
   }
 
   static Future<Rect?> get sharePositionOrigin async {
-    if (await Utils.isIpad()) {
+    if (await isIpad) {
       final size = Get.size;
       return Rect.fromLTWH(
         0,
@@ -58,7 +55,7 @@ class Utils {
 
   static Future<void> shareText(String text) async {
     try {
-      SharePlus.instance.share(
+      await SharePlus.instance.share(
         ShareParams(
           text: text,
           sharePositionOrigin: await sharePositionOrigin,