..

app/src/main/AndroidManifest.xml

@@ -130,7 +130,7 @@
             android:name=".player.DocumentViewerActivity"
             android:theme="@style/Theme.Player"
             android:launchMode="singleInstance"
-            android:configChanges="orientation|screenSize|screenLayout|smallestScreenSize|density|fontScale"
+            android:configChanges="orientation|screenSize|screenLayout|smallestScreenSize|density|fontScale|keyboardHidden|keyboard|layoutDirection|navigation"
             android:screenOrientation="portrait"
             android:excludeFromRecents="false"
             android:hardwareAccelerated="true"

app/src/main/kotlin/bums/lunatic/launcher/player/DocumentViewerActivity.kt

@@ -33,6 +33,8 @@ class DocumentViewerActivity : AppCompatActivity(), PagedTextViewInterface {
     private var currentPageIndex = 0
     private var indexingJob: kotlinx.coroutines.Job? = null
 
+
+
     // 2. 기존 initializeReader() 함수를 크기 변경 시에도 재사용 가능하도록 리팩토링
     private fun initializeReader(targetOffset: Long = -1L) {
         // 기존 작동 중인 인덱싱이 있다면 취소