From 7d52eea5d02d2b1ff5261ac934009e3be6a9d5de Mon Sep 17 00:00:00 2001
From: fansan <fansan@live.com>
Date: Wed, 1 Jul 2026 23:33:10 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E5=86=B7=E5=8D=B4=E5=88=A4=E6=96=AD?=
 =?UTF-8?q?=E6=8C=AA=E5=88=B0onResume=E4=BB=A5=E5=87=8F=E5=B0=91=E4=BC=A0?=
 =?UTF-8?q?=E6=84=9F=E5=99=A8=E6=B3=A8=E5=86=8C=20(#1633)?=
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---
 .../io/legado/app/ui/book/read/ReadBookRouteScreen.kt     | 2 +-
 .../java/io/legado/app/ui/book/read/ReadBookViewModel.kt  | 8 +++++---
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookRouteScreen.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookRouteScreen.kt
index 59be73732..3d409ff8d 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookRouteScreen.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookRouteScreen.kt
@@ -249,7 +249,7 @@ fun ReadBookRouteScreen(
 
         val observer = LifecycleEventObserver { _, event ->
             if (event == Lifecycle.Event.ON_RESUME) {
-                if (!ReadConfig.autoSuggestDayNight) return@LifecycleEventObserver
+                if (!ReadConfig.autoSuggestDayNight || viewModel.isDayNightSwitchCoolingDown()) return@LifecycleEventObserver
                 if (lightSensor != null) {
                     listener = object : SensorEventListener {
                         override fun onSensorChanged(sensorEvent: SensorEvent?) {
diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
index eaa4ae769..8e414a0ce 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt
@@ -4023,6 +4023,10 @@ class ReadBookViewModel(
     private var lastSwitchDayNightReminderTime: Long = 0L
     private val reminderQueue = ArrayDeque<ReminderUiState>()
 
+    fun isDayNightSwitchCoolingDown(): Boolean {
+        return System.currentTimeMillis() - lastSwitchDayNightReminderTime < REMINDER_COOLDOWN_MS
+    }
+
     private fun showReminder(reminder: ReminderUiState) {
         if (_uiState.value.activeReminder == null && reminderQueue.isEmpty()) {
             _uiState.update { it.copy(activeReminder = reminder) }
@@ -4038,9 +4042,7 @@ class ReadBookViewModel(
     }
 
     private fun checkSwitchDayNight(lux: Float) {
-        if (!ReadConfig.autoSuggestDayNight) return
-        if (System.currentTimeMillis() - lastSwitchDayNightReminderTime < REMINDER_COOLDOWN_MS) return
-
+        if (!ReadConfig.autoSuggestDayNight || isDayNightSwitchCoolingDown()) return
         val isNight = ReadConfig.isNightTheme
         val styleConfig = _uiState.value.styleConfig
         if (!isNight && lux <= DARK_LUX_THRESHOLD) {