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 eda334759..a1eb4ba4d 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
@@ -9,14 +9,11 @@ import android.text.format.DateUtils
 import android.view.Gravity
 import android.view.MenuItem
 import android.view.MotionEvent
-import android.view.WindowInsets
 import android.widget.FrameLayout
 import android.widget.ImageView
 import androidx.activity.OnBackPressedCallback
 import androidx.activity.viewModels
 import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
-import androidx.core.view.WindowCompat
-import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.get
 import androidx.core.view.postDelayed
 import androidx.fragment.app.Fragment
@@ -24,7 +21,6 @@ import androidx.fragment.app.FragmentActivity
 import androidx.lifecycle.lifecycleScope
 import androidx.viewpager2.adapter.FragmentStateAdapter
 import androidx.viewpager2.widget.ViewPager2
-import cn.hutool.core.util.IdcardUtil.hide
 import com.google.android.material.bottomnavigation.BottomNavigationView
 import com.google.android.material.bottomnavigation.LabelVisibilityMode
 import com.google.android.material.floatingactionbutton.ExtendedFloatingActionButton
@@ -41,7 +37,6 @@ import io.legado.app.help.AppWebDav
 import io.legado.app.help.book.BookHelp
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.config.LocalConfig
-import io.legado.app.help.config.ReadBookConfig
 import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.help.storage.Backup
 import io.legado.app.lib.dialogs.alert