diff --git a/app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt
index c219b2430..3bec6c67e 100644
--- a/app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/readbook/ReadBookActivity.kt
@@ -9,7 +9,6 @@ import android.text.SpannableStringBuilder
 import android.view.KeyEvent
 import android.view.Menu
 import android.view.MenuItem
-import android.view.WindowManager
 import android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_SHORT_EDGES
 import androidx.core.view.isVisible
 import androidx.lifecycle.Observer
@@ -83,7 +82,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
             changeSourceDialog =
                 supportFragmentManager.findFragmentByTag(ChangeSourceDialog.tag) as? ChangeSourceDialog
         }
-        setScreenBrightness(getPrefInt("brightness", 100))
     }
 
     override fun onWindowFocusChanged(hasFocus: Boolean) {
@@ -458,21 +456,6 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_rea
         }
     }
 
-    /**
-     * 设置屏幕亮度
-     */
-    override fun setScreenBrightness(value: Int) {
-        var brightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE
-        if (!read_menu.brightnessAuto()) {
-            brightness = value.toFloat()
-            if (brightness < 1f) brightness = 1f
-            brightness /= 255f
-        }
-        val params = window.attributes
-        params.screenBrightness = brightness
-        window.attributes = params
-    }
-
     override fun onColorSelected(dialogId: Int, color: Int) = with(ReadBookConfig.getConfig()) {
         when (dialogId) {
             TEXT_COLOR -> {
diff --git a/app/src/main/java/io/legado/app/ui/readbook/ReadMenu.kt b/app/src/main/java/io/legado/app/ui/readbook/ReadMenu.kt
index 62a8a834e..45442dc66 100644
--- a/app/src/main/java/io/legado/app/ui/readbook/ReadMenu.kt
+++ b/app/src/main/java/io/legado/app/ui/readbook/ReadMenu.kt
@@ -2,6 +2,7 @@ package io.legado.app.ui.readbook
 
 import android.content.Context
 import android.util.AttributeSet
+import android.view.WindowManager
 import android.view.animation.Animation
 import android.view.animation.AnimationUtils
 import android.widget.FrameLayout
@@ -59,6 +60,22 @@ class ReadMenu : FrameLayout {
             iv_brightness_auto.setColorFilter(context.buttonDisabledColor)
             seek_brightness.isEnabled = true
         }
+        setScreenBrightness(context.getPrefInt("brightness", 100))
+    }
+
+    /**
+     * 设置屏幕亮度
+     */
+    private fun setScreenBrightness(value: Int) {
+        var brightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE
+        if (!brightnessAuto()) {
+            brightness = value.toFloat()
+            if (brightness < 1f) brightness = 1f
+            brightness /= 255f
+        }
+        val params = activity?.window?.attributes
+        params?.screenBrightness = brightness
+        activity?.window?.attributes = params
     }
 
     fun runMenuIn() {
@@ -93,11 +110,10 @@ class ReadMenu : FrameLayout {
                 !brightnessAuto()
             )
             upBrightnessState()
-            callBack?.setScreenBrightness(context.getPrefInt("brightness", 100))
         }
         seek_brightness.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
             override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
-                callBack?.setScreenBrightness(progress)
+                setScreenBrightness(progress)
             }
 
             override fun onStartTrackingTouch(seekBar: SeekBar?) {
@@ -231,7 +247,6 @@ class ReadMenu : FrameLayout {
     }
 
     interface CallBack {
-        fun setScreenBrightness(value: Int)
         fun autoPage()
         fun skipToPage(page: Int)
         fun moveToPrevChapter(last: Boolean)