优化

app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt

@@ -70,23 +70,13 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    private suspend fun setBook(book: Book) {
+    private fun setBook(book: Book) {
+        execute {
             durChapterIndex = book.durChapterIndex
             bookData.postValue(book)
-        if (book.customCoverUrl.isNullOrBlank()) {
+            upCoverByRule(book)
-            BookCover.searchCover(book)?.let { coverUrl ->
+            bookSource = if (book.isLocalBook()) null else
-                book.customCoverUrl = coverUrl
-                bookData.postValue(book)
-                if (inBookshelf) {
-                    saveBook(book)
-                }
-            }
-        }
-        bookSource = if (book.isLocalBook()) {
-            null
-        } else {
                 appDb.bookSourceDao.getBookSource(book.origin)
-        }
             if (book.tocUrl.isEmpty()) {
                 loadBookInfo(book)
             } else {
@@ -98,6 +88,21 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
                 }
             }
         }
+    }
+
+    private fun upCoverByRule(book: Book) {
+        execute {
+            if (book.customCoverUrl.isNullOrBlank()) {
+                BookCover.searchCover(book)?.let { coverUrl ->
+                    book.customCoverUrl = coverUrl
+                    bookData.postValue(book)
+                    if (inBookshelf) {
+                        saveBook(book)
+                    }
+                }
+            }
+        }
+    }
 
     fun loadBookInfo(
         book: Book,