Improve code.

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -809,8 +809,13 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
         recycler_view.addOnScrollListener(fabScrollListener)
 
         if (!isReadOnly) {
-            val touchCallback: ItemTouchHelper.SimpleCallback = object : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT) {
-                override fun onMove(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, target: RecyclerView.ViewHolder): Boolean {
+            val touchCallback: ItemTouchHelper.SimpleCallback =
+                object : ItemTouchHelper.SimpleCallback(0, ItemTouchHelper.LEFT) {
+                    override fun onMove(
+                        recyclerView: RecyclerView,
+                        viewHolder: RecyclerView.ViewHolder,
+                        target: RecyclerView.ViewHolder
+                    ): Boolean {
                         return true
                     }
 
@@ -829,7 +834,10 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
                         adapter.notifyItemChanged(viewHolder.adapterPosition)
                     }
 
-                override fun getSwipeDirs(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder): Int {
+                    override fun getSwipeDirs(
+                        recyclerView: RecyclerView,
+                        viewHolder: RecyclerView.ViewHolder
+                    ): Int {
                         // Currently enable swipes for text and attachment messages only
 
                         if (viewHolder is MessageViewHolder || viewHolder is AttachmentViewHolder) {
@@ -840,8 +848,7 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiR
                     }
                 }
 
-            val itemTouchHelper = ItemTouchHelper(touchCallback)
-            itemTouchHelper.attachToRecyclerView(recycler_view)
+            ItemTouchHelper(touchCallback).attachToRecyclerView(recycler_view)
         }
     }