优化

app/src/main/java/io/legado/app/App.kt

@@ -74,8 +74,8 @@ class App : Application() {
     }
 
     fun applyDayNight(){
-        initNightTheme()
         upThemeStore()
+        initNightTheme()
     }
 
     /**

app/src/main/java/io/legado/app/ui/config/ThemeConfigFragment.kt

@@ -2,6 +2,8 @@ package io.legado.app.ui.config
 
 import android.content.SharedPreferences
 import android.os.Bundle
+import android.os.Handler
+import android.os.Looper
 import androidx.appcompat.app.AlertDialog
 import androidx.preference.PreferenceFragmentCompat
 import io.legado.app.App
@@ -32,7 +34,8 @@ class ThemeConfigFragment : PreferenceFragmentCompat(), SharedPreferences.OnShar
     override fun onSharedPreferenceChanged(sharedPreferences: SharedPreferences?, key: String?) {
         sharedPreferences ?: return
         when (key) {
-            "colorPrimary", "colorAccent", "colorBackground" -> if (!ColorUtils.isColorLight(
+            "colorPrimary", "colorAccent", "colorBackground" ->
+                if (!ColorUtils.isColorLight(
                         sharedPreferences.getInt(
                             "colorBackground",
                             App.INSTANCE.getCompatColor(R.color.md_grey_100)
@@ -42,16 +45,17 @@ class ThemeConfigFragment : PreferenceFragmentCompat(), SharedPreferences.OnShar
                     AlertDialog.Builder(App.INSTANCE)
                         .setTitle("白天背景太暗")
                         .setMessage("将会恢复默认背景？")
-                    .setPositiveButton(R.string.ok) { dialog, which ->
+                        .setPositiveButton(R.string.ok) { _, _ ->
                             App.INSTANCE.putPrefInt("colorBackground", App.INSTANCE.getCompatColor(R.color.md_grey_100))
                             upTheme(false)
                         }
-                    .setNegativeButton(R.string.cancel) { dialogInterface, i -> upTheme(false) }
+                        .setNegativeButton(R.string.cancel) { _, _ -> upTheme(false) }
                         .show().upTint
                 } else {
                     upTheme(false)
                 }
-            "colorPrimaryNight", "colorAccentNight", "colorBackgroundNight" -> if (ColorUtils.isColorLight(
+            "colorPrimaryNight", "colorAccentNight", "colorBackgroundNight" ->
+                if (ColorUtils.isColorLight(
                         sharedPreferences.getInt(
                             "colorBackgroundNight",
                             App.INSTANCE.getCompatColor(R.color.md_grey_800)
@@ -61,14 +65,14 @@ class ThemeConfigFragment : PreferenceFragmentCompat(), SharedPreferences.OnShar
                     AlertDialog.Builder(App.INSTANCE)
                         .setTitle("夜间背景太亮")
                         .setMessage("将会恢复默认背景？")
-                    .setPositiveButton(R.string.ok) { dialog, which ->
+                        .setPositiveButton(R.string.ok) { _, _ ->
                             App.INSTANCE.putPrefInt(
                                 "colorBackgroundNight",
                                 App.INSTANCE.getCompatColor(R.color.md_grey_800)
                             )
                             upTheme(true)
                         }
-                    .setNegativeButton(R.string.cancel) { dialogInterface, i -> upTheme(true) }
+                        .setNegativeButton(R.string.cancel) { _, _ -> upTheme(true) }
                         .show()
                 } else {
                     upTheme(true)