diff --git a/app/src/androidTest/java/io/legado/app/ExampleInstrumentedTest.kt b/app/src/androidTest/java/io/legado/app/ExampleInstrumentedTest.kt
index 9820b40fb..4059bc269 100644
--- a/app/src/androidTest/java/io/legado/app/ExampleInstrumentedTest.kt
+++ b/app/src/androidTest/java/io/legado/app/ExampleInstrumentedTest.kt
@@ -4,12 +4,9 @@ import android.net.Uri
 import android.util.Log
 import androidx.test.InstrumentationRegistry
 import androidx.test.runner.AndroidJUnit4
-
 import org.junit.Test
 import org.junit.runner.RunWith
 
-import org.junit.Assert.*
-
 /**
  * Instrumented test, which will execute on an Android device.
  *
diff --git a/app/src/main/java/io/legado/app/model/Debug.kt b/app/src/main/java/io/legado/app/model/Debug.kt
index 4151185bd..cb08cf6f9 100644
--- a/app/src/main/java/io/legado/app/model/Debug.kt
+++ b/app/src/main/java/io/legado/app/model/Debug.kt
@@ -1,10 +1,7 @@
 package io.legado.app.model
 
 import android.annotation.SuppressLint
-import android.util.Log
-import io.legado.app.constant.EventBus
 import io.legado.app.data.entities.*
-import io.legado.app.help.AppConfig
 import io.legado.app.help.coroutine.CompositeCoroutine
 import io.legado.app.model.rss.Rss
 import io.legado.app.model.webBook.WebBook
diff --git a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
index b6371b9f8..a107c178b 100644
--- a/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt
@@ -41,7 +41,6 @@ import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.utils.*
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import kotlinx.coroutines.Job
-import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.*
 import kotlinx.coroutines.launch
 import java.io.File
diff --git a/app/src/test/java/io/legado/app/ExampleUnitTest.kt b/app/src/test/java/io/legado/app/ExampleUnitTest.kt
index 57609f92a..0ee23db52 100644
--- a/app/src/test/java/io/legado/app/ExampleUnitTest.kt
+++ b/app/src/test/java/io/legado/app/ExampleUnitTest.kt
@@ -1,9 +1,8 @@
 package io.legado.app
 
+import org.junit.Assert.assertEquals
 import org.junit.Test
 
-import org.junit.Assert.*
-
 /**
  * Example local unit test, which will execute on the development machine (host).
  *