优化

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

@@ -161,7 +161,7 @@ class App : Application() {
         val readAloudChannel = NotificationChannel(
             channelIdReadAloud,
             getString(R.string.read_aloud),
-            NotificationManager.IMPORTANCE_DEFAULT
+            NotificationManager.IMPORTANCE_HIGH
         ).apply {
             enableLights(false)
             enableVibration(false)