diff --git a/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt b/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
index 65a72dd9b..4e535001f 100644
--- a/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/config/BackupConfigFragment.kt
@@ -32,6 +32,7 @@ import io.legado.app.utils.*
 import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.launch
 import splitties.init.appCtx
+import kotlin.collections.set
 
 class BackupConfigFragment : PreferenceFragment(),
     SharedPreferences.OnSharedPreferenceChangeListener {
@@ -209,7 +210,9 @@ class BackupConfigFragment : PreferenceFragment(),
         return super.onPreferenceTreeClick(preference)
     }
 
-
+    /**
+     * 备份忽略设置
+     */
     private fun backupIgnore() {
         val checkedItems = BooleanArray(BackupConfig.ignoreKeys.size) {
             BackupConfig.ignoreConfig[BackupConfig.ignoreKeys[it]] ?: false
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 dda7b1adb..ef8e2d89a 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
@@ -8,6 +8,7 @@ import android.view.KeyEvent
 import android.view.MenuItem
 import android.view.ViewGroup
 import androidx.activity.viewModels
+import androidx.core.view.postDelayed
 import androidx.fragment.app.Fragment
 import androidx.fragment.app.FragmentManager
 import androidx.fragment.app.FragmentStatePagerAdapter
@@ -87,9 +88,9 @@ class MainActivity : VMBaseActivity<ActivityMainBinding, MainViewModel>(),
         upVersion()
         //自动更新书籍
         if (AppConfig.autoRefreshBook) {
-            binding.viewPagerMain.postDelayed({
+            binding.viewPagerMain.postDelayed(1000) {
                 viewModel.upAllBookToc()
-            }, 1000)
+            }
         }
         binding.viewPagerMain.postDelayed({
             viewModel.postLoad()
diff --git a/app/src/main/java/io/legado/app/ui/welcome/WelcomeActivity.kt b/app/src/main/java/io/legado/app/ui/welcome/WelcomeActivity.kt
index cc98722d7..2d6d007e6 100644
--- a/app/src/main/java/io/legado/app/ui/welcome/WelcomeActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/welcome/WelcomeActivity.kt
@@ -3,6 +3,7 @@ package io.legado.app.ui.welcome
 import android.content.Intent
 import android.graphics.drawable.BitmapDrawable
 import android.os.Bundle
+import androidx.core.view.postDelayed
 import io.legado.app.base.BaseActivity
 import io.legado.app.constant.PreferKey
 import io.legado.app.constant.Theme
@@ -26,7 +27,7 @@ open class WelcomeActivity : BaseActivity<ActivityWelcomeBinding>() {
         if (intent.flags and Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT != 0) {
             finish()
         } else {
-            binding.root.postDelayed({ startMainActivity() }, 600)
+            binding.root.postDelayed(600) { startMainActivity() }
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/widget/checkbox/SmoothCheckBox.kt b/app/src/main/java/io/legado/app/ui/widget/checkbox/SmoothCheckBox.kt
index 7322519c9..cbc761510 100644
--- a/app/src/main/java/io/legado/app/ui/widget/checkbox/SmoothCheckBox.kt
+++ b/app/src/main/java/io/legado/app/ui/widget/checkbox/SmoothCheckBox.kt
@@ -7,6 +7,7 @@ import android.util.AttributeSet
 import android.view.View
 import android.view.animation.LinearInterpolator
 import android.widget.Checkable
+import androidx.core.view.postDelayed
 import io.legado.app.R
 import io.legado.app.lib.theme.ThemeStore
 import io.legado.app.utils.dpToPx
@@ -244,7 +245,7 @@ class SmoothCheckBox @JvmOverloads constructor(
         }
         // invalidate
         if (mDrewDistance < mLeftLineDistance + mRightLineDistance) {
-            postDelayed({ this.postInvalidate() }, 10)
+            postDelayed(10) { this.postInvalidate() }
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/utils/RegexExtensions.kt b/app/src/main/java/io/legado/app/utils/RegexExtensions.kt
index 9250b4db8..0918ae232 100644
--- a/app/src/main/java/io/legado/app/utils/RegexExtensions.kt
+++ b/app/src/main/java/io/legado/app/utils/RegexExtensions.kt
@@ -1,5 +1,6 @@
 package io.legado.app.utils
 
+import androidx.core.os.postDelayed
 import io.legado.app.exception.RegexTimeoutException
 import io.legado.app.help.CrashHandler
 import kotlinx.coroutines.suspendCancellableCoroutine
@@ -23,20 +24,20 @@ suspend fun CharSequence.replace(regex: Regex, replacement: String, timeout: Lon
                 block.resumeWithException(e)
             }
         }
-        mainHandler.postDelayed({
+        mainHandler.postDelayed(timeout) {
             if (thread.isAlive) {
                 val timeoutMsg = "替换超时,3秒后还未结束将重启应用\n替换规则$regex\n替换内容:${this}"
                 val exception = RegexTimeoutException(timeoutMsg)
                 block.cancel(exception)
                 appCtx.longToastOnUi(timeoutMsg)
                 CrashHandler.saveCrashInfo2File(exception)
-                mainHandler.postDelayed({
+                mainHandler.postDelayed(3000) {
                     if (thread.isAlive) {
                         appCtx.restart()
                     }
-                }, 3000)
+                }
             }
-        }, timeout)
+        }
     }
 }