优化

app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt

@@ -17,7 +17,7 @@ interface BookGroupDao {
     @Query("SELECT * FROM book_groups ORDER BY `order`")
     fun flowAll(): Flow<List<BookGroup>>
 
-    @Query(
+    @get:Query(
         """
         SELECT * FROM book_groups where (groupId >= 0 and show > 0)
         or (groupId = -4 and show > 0 and (select count(bookUrl) from books where type != ${BookType.audio} and origin != '${BookType.local}' and ((SELECT sum(groupId) FROM book_groups where groupId > 0) & `group`) = 0) > 0)
@@ -26,7 +26,7 @@ interface BookGroupDao {
         or (groupId = -1 and show > 0)
         ORDER BY `order`"""
     )
-    fun flowShow(): Flow<List<BookGroup>>
+    val show: Flow<List<BookGroup>>
 
     @Query("SELECT * FROM book_groups where groupId >= 0 ORDER BY `order`")
     fun flowSelect(): Flow<List<BookGroup>>

app/src/main/java/io/legado/app/ui/main/MainViewModel.kt

@@ -17,7 +17,6 @@ import io.legado.app.model.CacheBook
 import io.legado.app.model.webBook.WebBook
 import io.legado.app.service.CacheBookService
 import io.legado.app.utils.postEvent
-
 import kotlinx.coroutines.*
 import timber.log.Timber
 import java.util.concurrent.CopyOnWriteArraySet

app/src/main/java/io/legado/app/ui/main/bookshelf/style1/BookshelfFragment1.kt

@@ -76,7 +76,7 @@ class BookshelfFragment1 : BaseBookshelfFragment(R.layout.fragment_bookshelf),
     private fun initBookGroupData() {
         groupsFlowJob?.cancel()
         groupsFlowJob = launch {
-            appDb.bookGroupDao.flowShow().collect {
+            appDb.bookGroupDao.show.collect {
                 upGroup(it)
             }
         }

app/src/main/java/io/legado/app/ui/main/bookshelf/style2/BookshelfFragment2.kt

@@ -100,7 +100,7 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
     private fun initGroupData() {
         groupsFlowJob?.cancel()
         groupsFlowJob = launch {
-            appDb.bookGroupDao.flowShow().collect {
+            appDb.bookGroupDao.show.collect {
                 if (it != bookGroups) {
                     bookGroups = it
                     booksAdapter.notifyDataSetChanged()