优化

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

@@ -1,6 +1,7 @@
 package io.legado.app.ui.main.bookshelf.books
 
 import android.content.Context
+import androidx.core.os.bundleOf
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.Book
 
@@ -11,7 +12,7 @@ abstract class BaseBooksAdapter(context: Context, layoutId: Int) :
         for (i in 0 until itemCount) {
             getItem(i)?.let {
                 if (it.bookUrl == bookUrl) {
-                    notifyItemChanged(i, 5)
+                    notifyItemChanged(i, bundleOf(Pair("refresh", null)))
                     return
                 }
             }

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

@@ -1,6 +1,7 @@
 package io.legado.app.ui.main.bookshelf.books
 
 import android.content.Context
+import android.os.Bundle
 import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.constant.BookType
@@ -15,8 +16,9 @@ class BooksAdapterList(context: Context, private val callBack: CallBack) :
     BaseBooksAdapter(context, R.layout.item_bookshelf_list) {
 
     override fun convert(holder: ItemViewHolder, item: Book, payloads: MutableList<Any>) {
+        val bundle = payloads.getOrNull(0) as? Bundle
         with(holder.itemView) {
-            if (payloads.isEmpty()) {
+            if (bundle == null) {
                 ATH.applyBackgroundTint(this)
                 tv_name.text = item.name
                 tv_author.text = item.author
@@ -37,9 +39,14 @@ class BooksAdapterList(context: Context, private val callBack: CallBack) :
                     bv_unread.setHighlight(item.lastCheckCount > 0)
                 }
             } else {
-                when (payloads[0]) {
+                bundle.keySet().map {
-                    5 -> {
+                    when (it) {
-                        if (item.origin != BookType.local && callBack.isUpdate(item.bookUrl)) {
+                        "name" -> tv_name.text = item.name
+                        "author" -> tv_author.text = item.author
+                        "durTitle" -> tv_read.text = item.durChapterTitle
+                        "latestTitle" -> tv_last.text = item.latestChapterTitle
+                        "cover" -> iv_cover.load(item.getDisplayCover(), item.name, item.author)
+                        "refresh" -> if (item.origin != BookType.local && callBack.isUpdate(item.bookUrl)) {
                             bv_unread.invisible()
                             rl_loading.show()
                         } else {

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

@@ -1,5 +1,6 @@
 package io.legado.app.ui.main.bookshelf.books
 
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.DiffUtil
 import io.legado.app.data.entities.Book
 
@@ -22,13 +23,45 @@ class BooksDiffCallBack(private val oldItems: List<Book>, private val newItems:
     override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
         val oldItem = oldItems[oldItemPosition]
         val newItem = newItems[newItemPosition]
-        return oldItem.name == newItem.name
+        if (oldItem.name != newItem.name)
-                && oldItem.author == newItem.author
+            return false
-                && oldItem.durChapterTitle == newItem.durChapterTitle
+        if (oldItem.author != newItem.author)
-                && oldItem.latestChapterTitle == newItem.latestChapterTitle
+            return false
-                && oldItem.getDisplayCover() == newItem.getDisplayCover()
+        if (oldItem.durChapterTitle != newItem.durChapterTitle)
-                && oldItem.getUnreadChapterNum() == newItem.getUnreadChapterNum()
+            return false
-                && oldItem.lastCheckCount == newItem.lastCheckCount
+        if (oldItem.latestChapterTitle != newItem.latestChapterTitle)
+            return false
+        if (oldItem.lastCheckCount != newItem.lastCheckCount)
+            return false
+        if (oldItem.getDisplayCover() != newItem.getDisplayCover())
+            return false
+        if (oldItem.getUnreadChapterNum() != newItem.getUnreadChapterNum())
+            return false
+        return true
+    }
+
+    override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? {
+        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("durTitle", null)
+        if (oldItem.latestChapterTitle != newItem.latestChapterTitle)
+            bundle.putString("latestTitle", null)
+        if (oldItem.getDisplayCover() != newItem.getDisplayCover())
+            bundle.putString("cover", null)
+        if (oldItem.getUnreadChapterNum() != newItem.getUnreadChapterNum()
+            || oldItem.lastCheckCount != newItem.lastCheckCount
+        )
+            bundle.putString("refresh", null)
+        if (bundle.isEmpty) {
+            return null
+        }
+        return bundle
     }
 
 }