feat : viewpager2 구현 #7

app/src/main/java/org/android/go/sopt/presentation/main/gallery/PagerAdapter.kt

@@ -0,0 +1,44 @@
+package org.android.go.sopt.presentation.main.gallery
+
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import androidx.recyclerview.widget.RecyclerView
+import org.android.go.sopt.databinding.ItemPagerBinding
+
+class PagerAdapter(_itemList: List<Int> = listOf()) :
+    RecyclerView.Adapter<PagerAdapter.PagerViewHolder>() {
+    private var itemList: List<Int> = _itemList
+
+    class PagerViewHolder(private val binding: ItemPagerBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        fun bind(src: Int) {
+            binding.ivPager.setImageResource(src)
+        }
+    }
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): PagerViewHolder {
+        val binding = ItemPagerBinding.inflate(LayoutInflater.from(parent.context), parent, false)
+        return PagerViewHolder(binding)
+    }
+
+    override fun getItemCount() = itemList.size
+
+    override fun onBindViewHolder(holder: PagerViewHolder, position: Int) {
+        holder.bind(itemList[position])
+    }
+
+    fun setItemList(itemList: List<Int>) {
+        this.itemList = itemList
+        notifyDataSetChanged()
+    }
+}
+
+//class PagerDiffCallBack : DiffUtil.ItemCallback<List<Int>>() {
+//    override fun areItemsTheSame(oldItem: List<Int>, newItem: List<Int>): Boolean {
+//        return oldItem == newItem
+//    }
+//
+//    override fun areContentsTheSame(oldItem: List<Int>, newItem: List<Int>): Boolean {
+//        return oldItem == newItem
+//    }
+//}