diff --git a/app/src/main/java/io/legado/app/constant/AppConst.kt b/app/src/main/java/io/legado/app/constant/AppConst.kt
index 69036d5d0..d7018c996 100644
--- a/app/src/main/java/io/legado/app/constant/AppConst.kt
+++ b/app/src/main/java/io/legado/app/constant/AppConst.kt
@@ -1,6 +1,7 @@
 package io.legado.app.constant
 
 import android.annotation.SuppressLint
+import android.provider.Settings
 import io.legado.app.R
 import splitties.init.appCtx
 import java.text.SimpleDateFormat
@@ -76,4 +77,30 @@ object AppConst {
             document.getElementsByTagName('body')[0].style.webkitTextFillColor = '#8a8a8a';
         """.trimIndent()
     }
+
+    val androidId: String by lazy {
+        Settings.System.getString(appCtx.contentResolver, Settings.Secure.ANDROID_ID)
+    }
+
+    val appInfo: AppInfo by lazy {
+        val appInfo = AppInfo()
+        appCtx.packageManager.getPackageInfo(appCtx.packageName, 0)?.let {
+            appInfo.versionName = it.versionName
+            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.P) {
+                appInfo.versionCode = it.longVersionCode
+            } else {
+                @Suppress("DEPRECATION")
+                appInfo.versionCode = it.versionCode.toLong()
+            }
+        }
+        appInfo
+    }
+
+    val charsets =
+        arrayListOf("UTF-8", "GB2312", "GB18030", "GBK", "Unicode", "UTF-16", "UTF-16LE", "ASCII")
+
+    data class AppInfo(
+        var versionCode: Long = 0L,
+        var versionName: String = ""
+    )
 }
diff --git a/app/src/main/java/io/legado/app/constant/Const.kt b/app/src/main/java/io/legado/app/constant/Const.kt
deleted file mode 100644
index b3500a2ae..000000000
--- a/app/src/main/java/io/legado/app/constant/Const.kt
+++ /dev/null
@@ -1,30 +0,0 @@
-package io.legado.app.constant
-
-import android.provider.Settings
-import splitties.init.appCtx
-
-val androidId: String by lazy {
-    Settings.System.getString(appCtx.contentResolver, Settings.Secure.ANDROID_ID)
-}
-
-val appInfo: AppInfo by lazy {
-    val appInfo = AppInfo()
-    appCtx.packageManager.getPackageInfo(appCtx.packageName, 0)?.let {
-        appInfo.versionName = it.versionName
-        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.P) {
-            appInfo.versionCode = it.longVersionCode
-        } else {
-            @Suppress("DEPRECATION")
-            appInfo.versionCode = it.versionCode.toLong()
-        }
-    }
-    appInfo
-}
-
-val charsets =
-    arrayListOf("UTF-8", "GB2312", "GB18030", "GBK", "Unicode", "UTF-16", "UTF-16LE", "ASCII")
-
-data class AppInfo(
-    var versionCode: Long = 0L,
-    var versionName: String = ""
-)
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/data/AppDatabase.kt b/app/src/main/java/io/legado/app/data/AppDatabase.kt
index 451c659c3..c48736382 100644
--- a/app/src/main/java/io/legado/app/data/AppDatabase.kt
+++ b/app/src/main/java/io/legado/app/data/AppDatabase.kt
@@ -7,7 +7,7 @@ import androidx.room.RoomDatabase
 import androidx.room.migration.Migration
 import androidx.sqlite.db.SupportSQLiteDatabase
 import io.legado.app.constant.AppConst
-import io.legado.app.constant.androidId
+import io.legado.app.constant.AppConst.androidId
 import io.legado.app.data.dao.*
 import io.legado.app.data.entities.*
 import splitties.init.appCtx
diff --git a/app/src/main/java/io/legado/app/help/storage/Restore.kt b/app/src/main/java/io/legado/app/help/storage/Restore.kt
index 435946e38..f2be6b7b5 100644
--- a/app/src/main/java/io/legado/app/help/storage/Restore.kt
+++ b/app/src/main/java/io/legado/app/help/storage/Restore.kt
@@ -11,8 +11,8 @@ import com.jayway.jsonpath.Option
 import com.jayway.jsonpath.ParseContext
 import io.legado.app.BuildConfig
 import io.legado.app.R
+import io.legado.app.constant.AppConst.androidId
 import io.legado.app.constant.PreferKey
-import io.legado.app.constant.androidId
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.*
 import io.legado.app.help.DefaultData
diff --git a/app/src/main/java/io/legado/app/ui/about/AboutFragment.kt b/app/src/main/java/io/legado/app/ui/about/AboutFragment.kt
index 166161c19..2a4c3dbf7 100644
--- a/app/src/main/java/io/legado/app/ui/about/AboutFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/about/AboutFragment.kt
@@ -8,7 +8,7 @@ import androidx.annotation.StringRes
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import io.legado.app.R
-import io.legado.app.constant.appInfo
+import io.legado.app.constant.AppConst.appInfo
 import io.legado.app.help.AppConfig
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.dialogs.selector
diff --git a/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt b/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
index 121f4f114..015c30399 100644
--- a/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt
@@ -12,9 +12,9 @@ import com.google.android.material.snackbar.Snackbar
 import io.legado.app.R
 import io.legado.app.base.VMBaseActivity
 import io.legado.app.constant.AppConst
+import io.legado.app.constant.AppConst.charsets
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
-import io.legado.app.constant.charsets
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
index 8dde10425..843995702 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookBaseActivity.kt
@@ -10,8 +10,8 @@ import androidx.activity.viewModels
 import androidx.core.view.isVisible
 import io.legado.app.R
 import io.legado.app.base.VMBaseActivity
+import io.legado.app.constant.AppConst.charsets
 import io.legado.app.constant.PreferKey
-import io.legado.app.constant.charsets
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Bookmark
 import io.legado.app.databinding.ActivityBookReadBinding
diff --git a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
index 5a45149a3..55a1498f4 100644
--- a/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/main/MainActivity.kt
@@ -13,9 +13,9 @@ import com.google.android.material.bottomnavigation.BottomNavigationView
 import io.legado.app.BuildConfig
 import io.legado.app.R
 import io.legado.app.base.VMBaseActivity
+import io.legado.app.constant.AppConst.appInfo
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
-import io.legado.app.constant.appInfo
 import io.legado.app.databinding.ActivityMainBinding
 import io.legado.app.help.AppConfig
 import io.legado.app.help.BookHelp