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app/src/main/java/com/example/defenseapplication/adapter/FamilySwitchAdapter.kt

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+package com.example.defenseapplication.adapter
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.core.content.ContextCompat
+import androidx.recyclerview.widget.RecyclerView
+import com.example.defenseapplication.R
+import com.example.defenseapplication.databinding.ItemSwitchFamilyBinding
+import com.example.defenseapplication.model.FamilyItem
+
+class FamilySwitchAdapter(
+    private val familyList: List<FamilyItem>,
+    private val onItemClickListener: (FamilyItem) -> Unit
+) : RecyclerView.Adapter<FamilySwitchAdapter.FamilyViewHolder>() {
+
+    private var selectedPosition = 0
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): FamilyViewHolder {
+        val binding = ItemSwitchFamilyBinding.inflate(
+            LayoutInflater.from(parent.context),
+            parent,
+            false
+        )
+        return FamilyViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: FamilyViewHolder, position: Int) {
+        holder.bind(familyList[position], position == selectedPosition)
+    }
+
+    override fun getItemCount(): Int = familyList.size
+
+    fun selectPosition(position: Int) {
+        val previousPosition = selectedPosition
+        selectedPosition = position
+        notifyItemChanged(previousPosition)
+        notifyItemChanged(selectedPosition)
+    }
+
+    fun getSelectedItem(): FamilyItem = familyList[selectedPosition]
+
+    inner class FamilyViewHolder(
+        private val binding: ItemSwitchFamilyBinding
+    ) : RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(item: FamilyItem, isSelected: Boolean) {
+            binding.tvFamilyName.text = item.name
+
+            binding.root.setBackgroundColor(
+                ContextCompat.getColor(
+                    binding.root.context,
+                    if (isSelected) R.color.bg_gray else R.color.white
+                )
+            )
+
+            binding.root.setOnClickListener {
+                val position = bindingAdapterPosition
+                if (position != RecyclerView.NO_POSITION) {
+                    selectPosition(position)
+                    onItemClickListener(item)
+                }
+            }
+        }
+    }
+}