fix: 阅读界面电量显示

app/src/main/java/io/legado/app/ui/book/read/ReadBookRouteScreen.kt

@@ -46,9 +46,9 @@ import io.legado.app.ui.replace.ReplaceEditRoute
 import io.legado.app.ui.replace.ReplaceRuleActivity
 import io.legado.app.utils.StartActivityContract
 import io.legado.app.utils.takePersistablePermissionSafely
-import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.flow.onSubscription
 import kotlinx.coroutines.launch
-import kotlinx.coroutines.yield
 
 
 data class ReadBookViewRefs(
@@ -233,9 +233,11 @@ fun ReadBookRouteScreen(
     // ── Effect collection: route handles launcher effects, rest goes to bridge ──
 
     LaunchedEffect(viewModel) {
-        coroutineScope {
+        val effectsSubscribed = CompletableDeferred<Unit>()
-            val collector = launch {
+        launch {
-                viewModel.effects.collect { effect ->
+            viewModel.effects
+                .onSubscription { effectsSubscribed.complete(Unit) }
+                .collect { effect ->
                     try {
                         when (effect) {
                             // Launcher-dependent effects — handled directly by route
@@ -353,10 +355,8 @@ fun ReadBookRouteScreen(
                     }
                 }
         }
-            yield()
+        effectsSubscribed.await()
         onEffectsReady()
-            collector.join()
-        }
     }
 
     // ── System UI sync ────────────────────────────────────────────────