优化

app/src/main/java/io/legado/app/ui/book/changesource/ChangeBookSourceDialog.kt

@@ -10,7 +10,6 @@ import androidx.appcompat.widget.Toolbar
 import androidx.core.os.bundleOf
 import androidx.fragment.app.viewModels
 import androidx.lifecycle.lifecycleScope
-import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
 import io.legado.app.R
 import io.legado.app.base.BaseDialogFragment
@@ -88,7 +87,6 @@ class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_
     }
 
     private fun initRecyclerView() {
-        binding.recyclerView.layoutManager = LinearLayoutManager(context)
         binding.recyclerView.addItemDecoration(VerticalDivider(requireContext()))
         binding.recyclerView.adapter = adapter
         adapter.registerAdapterDataObserver(object : RecyclerView.AdapterDataObserver() {
@@ -167,6 +165,7 @@ class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
+            R.id.menu_scroll_to_dur -> scrollToDurSource()
             R.id.menu_check_author -> {
                 AppConfig.changeSourceCheckAuthor = !item.isChecked
                 item.isChecked = !item.isChecked
@@ -198,6 +197,15 @@ class ChangeBookSourceDialog() : BaseDialogFragment(R.layout.dialog_book_change_
         return false
     }
 
+    private fun scrollToDurSource() {
+        adapter.getItems().forEachIndexed { index, searchBook ->
+            if (searchBook.bookUrl == bookUrl) {
+                binding.recyclerView.scrollToPosition(index)
+                return
+            }
+        }
+    }
+
     override fun changeTo(searchBook: SearchBook) {
         changeSource(searchBook)
         dismissAllowingStateLoss()

app/src/main/java/io/legado/app/ui/book/changesource/ChangeChapterSourceDialog.kt

@@ -59,6 +59,12 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
         registerForActivityResult(StartActivityContract(BookSourceEditActivity::class.java)) {
             viewModel.startSearch()
         }
+    private val searchBookAdapter by lazy {
+        ChangeChapterSourceAdapter(requireContext(), viewModel, this)
+    }
+    private val tocAdapter by lazy {
+        ChangeChapterTocAdapter(requireContext(), this)
+    }
     private val tocSuccess: (toc: List<BookChapter>) -> Unit = {
         tocAdapter.durChapterIndex =
             BookHelp.getDurChapter(viewModel.chapterIndex, viewModel.chapterTitle, it)
@@ -71,12 +77,6 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
         callBack?.replaceContent(it)
         dismissAllowingStateLoss()
     }
-    private val searchBookAdapter by lazy {
-        ChangeChapterSourceAdapter(requireContext(), viewModel, this)
-    }
-    private val tocAdapter by lazy {
-        ChangeChapterTocAdapter(requireContext(), this)
-    }
     private var searchBook: SearchBook? = null
 
     override fun onStart() {
@@ -199,6 +199,7 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
+            R.id.menu_scroll_to_dur -> scrollToDurSource()
             R.id.menu_check_author -> {
                 AppConfig.changeSourceCheckAuthor = !item.isChecked
                 item.isChecked = !item.isChecked
@@ -230,6 +231,15 @@ class ChangeChapterSourceDialog() : BaseDialogFragment(R.layout.dialog_chapter_c
         return false
     }
 
+    private fun scrollToDurSource() {
+        searchBookAdapter.getItems().forEachIndexed { index, searchBook ->
+            if (searchBook.bookUrl == bookUrl) {
+                binding.recyclerView.scrollToPosition(index)
+                return
+            }
+        }
+    }
+
     override fun openToc(searchBook: SearchBook) {
         this.searchBook = searchBook
         tocAdapter.setItems(null)