fix: 使用 savedInstanceState 判断默认阅读首启逻辑

app/src/main/java/io/legado/app/ui/main/MainActivity.kt

@@ -66,8 +66,6 @@ import kotlin.coroutines.suspendCoroutine
 open class MainActivity : BaseComposeActivity(), VariableDialog.Callback {
 
     companion object {
-        private var isFirstLaunch = true
-
         @Volatile
         var hasActiveReadBookRoute: Boolean = false
 
@@ -143,9 +141,11 @@ open class MainActivity : BaseComposeActivity(), VariableDialog.Callback {
     private val viewModel by viewModel<MainViewModel>()
     private val routeEvents = MutableSharedFlow<NavKey>(extraBufferCapacity = 1)
     private var bookInfoVariableSetter: ((String, String?) -> Unit)? = null
+    private var shouldApplyDefaultToRead = true
     internal var activeReadBookInputHandler: ReadBookInputHandler? = null
     override fun onCreate(savedInstanceState: Bundle?) {
         installSplashScreen()
+        shouldApplyDefaultToRead = savedInstanceState == null
         super.onCreate(savedInstanceState)
 
         if (checkStartupRoute()) return
@@ -193,14 +193,13 @@ open class MainActivity : BaseComposeActivity(), VariableDialog.Callback {
         }
 
         val startRoutes = remember {
-            val resolved = MainNavigator.resolveStartRoute(intent)
-            if (isFirstLaunch && OtherConfig.defaultToRead && resolved == MainRouteHome) {
-                isFirstLaunch = false
-                arrayOf(MainRouteHome, MainRouteReadBook())
-            } else {
-                isFirstLaunch = false
-                arrayOf(resolved)
-            }
+            val routes = resolveInitialStartRoutes(
+                resolved = MainNavigator.resolveStartRoute(intent),
+                defaultToRead = OtherConfig.defaultToRead,
+                isFreshCreate = shouldApplyDefaultToRead,
+            )
+            shouldApplyDefaultToRead = false
+            routes.toTypedArray()
         }
         val backStack = rememberNavBackStack(*startRoutes)
 
@@ -422,9 +421,6 @@ open class MainActivity : BaseComposeActivity(), VariableDialog.Callback {
 
     override fun onDestroy() {
         super.onDestroy()
-        if (!isChangingConfigurations) {
-            isFirstLaunch = true
-        }
         Coroutine.async {
             BookHelp.clearInvalidCache()
         }
@@ -439,6 +435,18 @@ open class MainActivity : BaseComposeActivity(), VariableDialog.Callback {
 
 }
 
+internal fun resolveInitialStartRoutes(
+    resolved: NavKey,
+    defaultToRead: Boolean,
+    isFreshCreate: Boolean,
+): List<NavKey> {
+    return if (isFreshCreate && defaultToRead && resolved == MainRouteHome) {
+        listOf(MainRouteHome, MainRouteReadBook())
+    } else {
+        listOf(resolved)
+    }
+}
+
 class LauncherW : MainActivity()
 class Launcher1 : MainActivity()
 class Launcher2 : MainActivity()