发现界面优化

app/src/main/java/io/legato/kazusa/ui/main/explore/ExploreAdapter.kt

@@ -65,8 +65,7 @@ class ExploreAdapter(
             val isExpanded = (item.bookSourceUrl == expandedId)
 
             if (isExpanded) {
-                ivStatus.icon = ContextCompat.getDrawable(context, R.drawable.ic_arrow_right)
+                ivStatus.isChecked = true
-                ivStatus.rotation = 90f
                 rotateLoading.visible()
                 if (scrollToId == item.bookSourceUrl) {
                     val pos = holder.bindingAdapterPosition
@@ -82,8 +81,7 @@ class ExploreAdapter(
                     rotateLoading.gone()
                 }
             } else {
-                ivStatus.icon = ContextCompat.getDrawable(context, R.drawable.ic_arrow_right)
+                ivStatus.isChecked = false
-                ivStatus.rotation = 0f
                 recyclerFlexbox(flexbox)
                 flexbox.gone()
             }
@@ -135,7 +133,19 @@ class ExploreAdapter(
     override fun registerListener(holder: ItemViewHolder, binding: ItemFindBookBinding) {
         binding.apply {
             llTitle.setOnClickListener {
-                val item = getItem(holder.bindingAdapterPosition) ?: return@setOnClickListener
+                toggleExpandState(holder)
+            }
+            ivStatus.setOnClickListener {
+                toggleExpandState(holder)
+            }
+            llTitle.onLongClick {
+                showMenu(ivStatus, holder.bindingAdapterPosition)
+            }
+        }
+    }
+
+    private fun toggleExpandState(holder: ItemViewHolder) {
+        val item = getItem(holder.bindingAdapterPosition) ?: return
         val oldId = expandedId
         expandedId = if (expandedId == item.bookSourceUrl) null else item.bookSourceUrl
         notifyItemChangedById(oldId)
@@ -146,11 +156,6 @@ class ExploreAdapter(
             callBack.scrollTo(holder.bindingAdapterPosition)
         }
     }
-            llTitle.onLongClick {
-                showMenu(ivStatus, holder.bindingAdapterPosition)
-            }
-        }
-    }
 
     fun compressExplore(): Boolean {
         return if (expandedId == null) {

app/src/main/res/layout/item_find_book.xml

@@ -37,7 +37,8 @@
             style="@style/Widget.Material3Expressive.Button.IconButton.Tonal"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            app:icon="@drawable/ic_arrow_right"
+            android:checkable="true"
+            app:icon="@drawable/m3_split_button_chevron_avd"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintBottom_toBottomOf="parent"/>
@@ -46,6 +47,7 @@
             android:id="@+id/rotate_loading"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            app:indicatorColor="?attr/colorSurface"
             app:indicatorSize="24dp"
             android:visibility="gone"
             app:layout_constraintTop_toTopOf="@id/iv_status"