diff --git a/android/app/build.gradle b/android/app/build.gradle
index 3948aa5e..64fea2d0 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -32,7 +32,7 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 28
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
@@ -46,7 +46,7 @@ android {
         // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
         applicationId "com.akuCommunity.app"
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 28
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
         ndk {
diff --git a/pubspec.lock b/pubspec.lock
index 0b8abc49..608e30ea 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -38,13 +38,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.0.0"
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.1.2"
   args:
     dependency: transitive
     description:
@@ -94,13 +87,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.1"
-  cached_network_image:
-    dependency: "direct main"
-    description:
-      name: cached_network_image
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.0.0-nullsafety"
   characters:
     dependency: transitive
     description:
@@ -192,20 +178,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.0"
-  extended_text:
-    dependency: "direct main"
-    description:
-      name: extended_text
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "5.0.4"
-  extended_text_library:
-    dependency: transitive
-    description:
-      name: extended_text_library
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "5.0.2"
   fake_async:
     dependency: transitive
     description:
@@ -239,20 +211,6 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
-  flutter_blurhash:
-    dependency: transitive
-    description:
-      name: flutter_blurhash
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.5.4-nullsafety.0"
-  flutter_cache_manager:
-    dependency: transitive
-    description:
-      name: flutter_cache_manager
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.0.0-nullsafety.2"
   flutter_easyrefresh:
     dependency: "direct main"
     description:
@@ -380,13 +338,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.0"
-  image:
-    dependency: transitive
-    description:
-      name: image
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.0.2"
   image_picker:
     dependency: "direct main"
     description:
@@ -464,13 +415,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
-  octo_image:
-    dependency: transitive
-    description:
-      name: octo_image
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.0.0-nullsafety.1"
   open_file:
     dependency: "direct main"
     description:
@@ -548,20 +492,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "3.1.1"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "4.0.2"
-  photo_view:
-    dependency: "direct main"
-    description:
-      name: photo_view
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.11.1"
   platform:
     dependency: transitive
     description:
@@ -627,13 +557,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.0.0"
-  rxdart:
-    dependency: transitive
-    description:
-      name: rxdart
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "0.26.0"
   shared_preferences:
     dependency: transitive
     description:
@@ -702,20 +625,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.3"
-  sqflite:
-    dependency: transitive
-    description:
-      name: sqflite
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.0+3"
-  sqflite_common:
-    dependency: transitive
-    description:
-      name: sqflite_common
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.0+2"
   stack_trace:
     dependency: transitive
     description:
@@ -828,13 +737,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.0"
-  uuid:
-    dependency: transitive
-    description:
-      name: uuid
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.0.2"
   vector_math:
     dependency: transitive
     description:
@@ -870,13 +772,6 @@ packages:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.2.0"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "5.0.2"
   yaml:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index ac99d5be..11e942d8 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -23,11 +23,6 @@ dependencies:
   # icons
   # TODO need remove
   flutter_icons: 1.1.0
-  extended_text: ^5.0.4
-  #图片预览
-  photo_view: ^0.11.1
-  #图片缓存
-  cached_network_image: ^3.0.0-nullsafety
   #弹窗
   bot_toast: ^4.0.1
   #滑块
@@ -48,7 +43,7 @@ dependencies:
   hive: ^2.0.0
   hive_flutter: ^1.0.0
   logger: ^1.0.0
-  flutter_easyrefresh: ^2.1.8
+  flutter_easyrefresh: 2.1.8
   random_character:
     git:
       url: http://159.75.73.143:8080/mengfucius/random_character