修复bug

app/src/main/java/io/legado/app/ui/book/search/SearchAdapter.kt

@@ -3,9 +3,8 @@ package io.legado.app.ui.book.search
 import android.content.Context
 import android.os.Bundle
 import android.view.ViewGroup
-import androidx.recyclerview.widget.DiffUtil
 import io.legado.app.R
-import io.legado.app.base.adapter.DiffRecyclerAdapter
+import io.legado.app.base.adapter.CommonRecyclerAdapter
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.data.entities.SearchBook
 import io.legado.app.databinding.ItemSearchBinding
@@ -14,19 +13,7 @@ import io.legado.app.utils.visible
 import org.jetbrains.anko.sdk27.listeners.onClick
 
 class SearchAdapter(context: Context, val callBack: CallBack) :
-    DiffRecyclerAdapter<SearchBook, ItemSearchBinding>(context) {
-
-    override val diffItemCallback: DiffUtil.ItemCallback<SearchBook>
-        get() = object : DiffUtil.ItemCallback<SearchBook>() {
-
-            override fun areContentsTheSame(oldItem: SearchBook, newItem: SearchBook): Boolean {
-                return true
-            }
-
-            override fun areItemsTheSame(oldItem: SearchBook, newItem: SearchBook): Boolean {
-                return false
-            }
-        }
+    CommonRecyclerAdapter<SearchBook, ItemSearchBinding>(context) {
 
     override fun getViewBinding(parent: ViewGroup): ItemSearchBinding {
         return ItemSearchBinding.inflate(inflater, parent, false)