优化

app/src/main/java/io/legado/app/ui/book/toc/ChapterListAdapter.kt

@@ -60,7 +60,6 @@ class ChapterListAdapter(context: Context, val callback: Callback) :
         get() = callback.book?.let {
             ContentProcessor.get(it.name, it.origin).getTitleReplaceRules()
         }
-    private var useReplace = AppConfig.tocUiUseReplace && callback.book?.getUseReplaceRule() == true
     private var upDisplayTileJob: Coroutine<*>? = null
 
     override fun onCurrentListChanged() {
@@ -69,7 +68,6 @@ class ChapterListAdapter(context: Context, val callback: Callback) :
     }
 
     fun clearDisplayTitle() {
-        useReplace = AppConfig.tocUiUseReplace && callback.book?.getUseReplaceRule() == true
         upDisplayTileJob?.cancel()
         displayTitleMap.clear()
     }
@@ -78,7 +76,7 @@ class ChapterListAdapter(context: Context, val callback: Callback) :
         upDisplayTileJob?.cancel()
         upDisplayTileJob = Coroutine.async(callback.scope) {
             val replaceRules = replaceRules
-            val useReplace = useReplace
+            val useReplace = AppConfig.tocUiUseReplace && callback.book?.getUseReplaceRule() == true
             val items = getItems()
             async {
                 for (i in startIndex until items.size) {