diff --git a/app/src/main/java/io/legado/app/constant/AppLog.kt b/app/src/main/java/io/legado/app/constant/AppLog.kt
index e4d6c2911..e74d1583d 100644
--- a/app/src/main/java/io/legado/app/constant/AppLog.kt
+++ b/app/src/main/java/io/legado/app/constant/AppLog.kt
@@ -17,11 +17,9 @@ object AppLog {
             mLogs.removeLastOrNull()
         }
         mLogs.add(0, Triple(System.currentTimeMillis(), message, throwable))
-        if (throwable != null) {
-            if (BuildConfig.DEBUG) {
-                val stackTrace = Thread.currentThread().stackTrace
-                Log.e(stackTrace[3].className, message, throwable)
-            }
+        if (BuildConfig.DEBUG) {
+            val stackTrace = Thread.currentThread().stackTrace
+            Log.e(stackTrace[3].className, message, throwable)
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 04d2d4bab..ade42e93b 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -199,7 +199,15 @@ class ReadBookActivity : BaseReadBookActivity(),
     override fun onWindowFocusChanged(hasFocus: Boolean) {
         super.onWindowFocusChanged(hasFocus)
         upSystemUiVisibility()
-        binding.readMenu.upBrightnessState()
+        if (hasFocus) {
+            //调节系统亮度后如果设置亮度值和原来一样亮度不会变
+            launch {
+                delay(100)
+                binding.readMenu.setScreenBrightness(WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE)
+                delay(1000)
+                binding.readMenu.upBrightnessState()
+            }
+        }
     }
 
     override fun onConfigurationChanged(newConfig: Configuration) {
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
index 97a0d370e..f4baf6f6c 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt
@@ -11,7 +11,7 @@ import android.view.Gravity
 import android.view.LayoutInflater
 import android.view.View.OnClickListener
 import android.view.View.OnLongClickListener
-import android.view.WindowManager
+import android.view.WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE
 import android.view.animation.Animation
 import android.widget.FrameLayout
 import android.widget.SeekBar
@@ -248,26 +248,24 @@ class ReadMenu @JvmOverloads constructor(
             binding.ivBrightnessAuto.setColorFilter(context.buttonDisabledColor)
             binding.seekBrightness.isEnabled = true
         }
-        setScreenBrightness(AppConfig.readBrightness)
+        setScreenBrightness(AppConfig.readBrightness.toFloat())
     }
 
     /**
      * 设置屏幕亮度
      */
-    private fun setScreenBrightness(value: Int) {
+    fun setScreenBrightness(value: Float) {
         activity?.run {
-            var brightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE
-            if (!brightnessAuto()) {
-                brightness = value.toFloat()
+            var brightness = BRIGHTNESS_OVERRIDE_NONE
+            if (!brightnessAuto() && value != BRIGHTNESS_OVERRIDE_NONE) {
+                brightness = value
                 if (brightness < 1f) brightness = 1f
                 brightness /= 255f
             }
             val params = window.attributes
             params.screenBrightness = brightness
             window.attributes = params
-            if (AppConfig.recordLog) {
-                AppLog.put("设置亮度$brightness")
-            }
+            AppLog.put("设置亮度$brightness")
         }
     }
 
@@ -364,7 +362,7 @@ class ReadMenu @JvmOverloads constructor(
 
             override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
                 if (fromUser) {
-                    setScreenBrightness(progress)
+                    setScreenBrightness(progress.toFloat())
                 }
             }