up

app/src/main/java/io/legado/app/ui/main/explore/FindBookAdapter.kt

@@ -28,13 +28,11 @@ class FindBookAdapter(context: Context, private val scope: CoroutineScope, val c
                 tv_name.text = item.bookSourceName
                 ll_title.onClick {
                     val oldEx = exIndex
-                    if (exIndex == holder.layoutPosition) {
-                        exIndex = -1
-                    } else {
-                        exIndex = holder.layoutPosition
+                    exIndex = if (exIndex == holder.layoutPosition) -1 else holder.layoutPosition
+                    notifyItemChanged(oldEx, false)
+                    if (exIndex != -1) {
                         notifyItemChanged(holder.layoutPosition, false)
                     }
-                    notifyItemChanged(oldEx, false)
                     callBack.scrollTo(holder.layoutPosition)
                 }
             }

app/src/main/java/io/legado/app/ui/main/explore/FindBookFragment.kt

@@ -18,6 +18,7 @@ class FindBookFragment : BaseFragment(R.layout.fragment_find_book),
     FindBookAdapter.CallBack {
 
     private lateinit var adapter: FindBookAdapter
+    private lateinit var linearLayoutManager: LinearLayoutManager
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         setSupportToolbar(toolbar)
@@ -31,7 +32,8 @@ class FindBookFragment : BaseFragment(R.layout.fragment_find_book),
 
     private fun initRecyclerView() {
         ATH.applyEdgeEffectColor(rv_find)
-        rv_find.layoutManager = LinearLayoutManager(context)
+        linearLayoutManager = LinearLayoutManager(context)
+        rv_find.layoutManager = linearLayoutManager
         adapter = FindBookAdapter(requireContext(), this, this)
         rv_find.adapter = adapter
     }