优化

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

@@ -80,6 +80,7 @@ abstract class BaseBooksAdapter<VH : RecyclerView.ViewHolder>(
         fun onItemLongClick(position: Int)
         fun isUpdate(bookUrl: String): Boolean
         fun getItemCount(): Int
+        fun getItemType(position: Int): Int
         fun getItem(position: Int): Any
     }
 }

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

@@ -21,14 +21,23 @@ class BooksAdapterGrid(context: Context, callBack: CallBack) :
         return callBack.getItemCount()
     }
 
+    override fun getItemViewType(position: Int): Int {
+        return callBack.getItemType(position)
+    }
+
     override fun onCreateViewHolder(
         parent: ViewGroup,
         viewType: Int
     ): RecyclerView.ViewHolder {
-        return BookViewHolder(
+        return when (viewType) {
+            1 -> GroupViewHolder(
+                ItemBookshelfGridGroupBinding.inflate(LayoutInflater.from(context), parent, false)
+            )
+            else -> BookViewHolder(
                 ItemBookshelfGridBinding.inflate(LayoutInflater.from(context), parent, false)
             )
         }
+    }
 
     override fun onBindViewHolder(
         holder: RecyclerView.ViewHolder,

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

@@ -23,11 +23,20 @@ class BooksAdapterList(context: Context, callBack: CallBack) :
         return callBack.getItemCount()
     }
 
+    override fun getItemViewType(position: Int): Int {
+        return callBack.getItemType(position)
+    }
+
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
-        return BookViewHolder(
+        return when (viewType) {
+            1 -> GroupViewHolder(
+                ItemBookshelfListGroupBinding.inflate(LayoutInflater.from(context), parent, false)
+            )
+            else -> BookViewHolder(
                 ItemBookshelfListBinding.inflate(LayoutInflater.from(context), parent, false)
             )
         }
+    }
 
     override fun onBindViewHolder(
         holder: RecyclerView.ViewHolder,

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

@@ -45,7 +45,6 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
     BaseBooksAdapter.CallBack {
 
     private val binding by viewBinding(FragmentBookshelf1Binding::bind)
-    private lateinit var searchView: SearchView
     private lateinit var booksAdapter: BaseBooksAdapter<*>
     override var groupId = AppConst.bookGroupNoneId
     private var booksFlowJob: Job? = null
@@ -198,6 +197,14 @@ class BookshelfFragment2 : BaseBookshelfFragment(R.layout.fragment_bookshelf1),
         }
     }
 
+    override fun getItemType(position: Int): Int {
+        return if (groupId == AppConst.bookGroupNoneId) {
+            if (position < bookGroups.size) 1 else 0
+        } else {
+            0
+        }
+    }
+
     override fun getItem(position: Int): Any {
         return if (groupId == AppConst.bookGroupNoneId) {
             if (position < bookGroups.size) {