优化

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

@@ -25,7 +25,7 @@ class BooksAdapterGrid(context: Context, private val callBack: CallBack) :
                 iv_cover.load(item.getDisplayCover(), item.name, item.author)
                 upRefresh(this, item)
             } else {
-                bundle.keySet().map {
+                bundle.keySet().forEach {
                     when (it) {
                         "name" -> tv_name.text = item.name
                         "cover" -> iv_cover.load(item.getDisplayCover(), item.name, item.author)

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

@@ -28,7 +28,7 @@ class BooksAdapterList(context: Context, private val callBack: CallBack) :
                 iv_cover.load(item.getDisplayCover(), item.name, item.author)
                 upRefresh(this, item)
             } else {
-                bundle.keySet().map {
+                bundle.keySet().forEach {
                     when (it) {
                         "name" -> tv_name.text = item.name
                         "author" -> tv_author.text = item.author

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksDiffCallBack.kt

@@ -42,11 +42,20 @@ class BooksDiffCallBack(private val oldItems: List<Book>, private val newItems:
         val oldItem = oldItems[oldItemPosition]
         val newItem = newItems[newItemPosition]
         val bundle = bundleOf()
-        if (oldItem.name != newItem.name) bundle.putString("name", null)
-        if (oldItem.author != newItem.author) bundle.putString("author", null)
-        if (oldItem.durChapterTitle != newItem.durChapterTitle) bundle.putString("dur", null)
-        if (oldItem.latestChapterTitle != newItem.latestChapterTitle) bundle.putString("last", null)
-        if (oldItem.getDisplayCover() != newItem.getDisplayCover()) bundle.putString("cover", null)
+        if (oldItem.name != newItem.name) bundle.putString("name", newItem.name)
+        if (oldItem.author != newItem.author) bundle.putString("author", newItem.author)
+        if (oldItem.durChapterTitle != newItem.durChapterTitle) bundle.putString(
+            "dur",
+            newItem.durChapterTitle
+        )
+        if (oldItem.latestChapterTitle != newItem.latestChapterTitle) bundle.putString(
+            "last",
+            newItem.latestChapterTitle
+        )
+        if (oldItem.getDisplayCover() != newItem.getDisplayCover()) bundle.putString(
+            "cover",
+            newItem.getDisplayCover()
+        )
         if (oldItem.lastCheckCount != newItem.lastCheckCount
             || oldItem.durChapterTime != newItem.durChapterTime
             || oldItem.getUnreadChapterNum() != newItem.getUnreadChapterNum()