diff --git a/app/src/main/java/io/legado/app/ui/book/search/DiffCallBack.kt b/app/src/main/java/io/legado/app/ui/book/search/DiffCallBack.kt
index b03e54fb7..4125489b8 100644
--- a/app/src/main/java/io/legado/app/ui/book/search/DiffCallBack.kt
+++ b/app/src/main/java/io/legado/app/ui/book/search/DiffCallBack.kt
@@ -18,64 +18,40 @@ class DiffCallBack(private val oldItems: List<SearchBook>, private val newItems:
     override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
         val oldItem = oldItems[oldItemPosition]
         val newItem = newItems[newItemPosition]
-        if (oldItem.name != newItem.name) {
-            return false
+        return when {
+            oldItem.name != newItem.name -> false
+            oldItem.author != newItem.author -> false
+            else -> true
         }
-        if (oldItem.author != newItem.author) {
-            return false
-        }
-        return true
     }
 
     override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
         val oldItem = oldItems[oldItemPosition]
         val newItem = newItems[newItemPosition]
-        if (oldItem.origins.size != newItem.origins.size) {
-            return false
-        }
-        if (oldItem.coverUrl != newItem.coverUrl) {
-            return false
-        }
-        if (oldItem.kind != newItem.kind) {
-            return false
-        }
-        if (oldItem.latestChapterTitle != newItem.latestChapterTitle) {
-            return false
+        return when {
+            oldItem.origins.size != newItem.origins.size -> false
+            oldItem.coverUrl != newItem.coverUrl -> false
+            oldItem.kind != newItem.kind -> false
+            oldItem.latestChapterTitle != newItem.latestChapterTitle -> false
+            oldItem.intro != newItem.intro -> false
+            else -> true
         }
-        if (oldItem.intro != newItem.intro) {
-            return false
-        }
-        return true
     }
 
     override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? {
         val payload = Bundle()
         val newItem = newItems[newItemPosition]
         val oldItem = oldItems[oldItemPosition]
-        if (oldItem.name != newItem.name) {
-            payload.putString("name", newItem.name)
-        }
-        if (oldItem.author != newItem.author) {
-            payload.putString("author", newItem.author)
-        }
-        if (oldItem.origins.size != newItem.origins.size) {
+        if (oldItem.name != newItem.name) payload.putString("name", newItem.name)
+        if (oldItem.author != newItem.author) payload.putString("author", newItem.author)
+        if (oldItem.origins.size != newItem.origins.size)
             payload.putInt("origins", newItem.origins.size)
-        }
-        if (oldItem.coverUrl != newItem.coverUrl) {
-            payload.putString("cover", newItem.coverUrl)
-        }
-        if (oldItem.kind != newItem.kind) {
-            payload.putString("kind", newItem.kind)
-        }
-        if (oldItem.latestChapterTitle != newItem.latestChapterTitle) {
+        if (oldItem.coverUrl != newItem.coverUrl) payload.putString("cover", newItem.coverUrl)
+        if (oldItem.kind != newItem.kind) payload.putString("kind", newItem.kind)
+        if (oldItem.latestChapterTitle != newItem.latestChapterTitle)
             payload.putString("last", newItem.latestChapterTitle)
-        }
-        if (oldItem.intro != newItem.intro) {
-            payload.putString("intro", newItem.intro)
-        }
-        if (payload.isEmpty) {
-            return null
-        }
+        if (oldItem.intro != newItem.intro) payload.putString("intro", newItem.intro)
+        if (payload.isEmpty) return null
         return payload
     }
 }
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