diff --git a/app/src/main/java/jackall/devrealm/adapter/MainAdapter.kt b/app/src/main/java/jackall/devrealm/adapter/MainAdapter.kt
new file mode 100644
index 0000000..56859a9
--- /dev/null
+++ b/app/src/main/java/jackall/devrealm/adapter/MainAdapter.kt
@@ -0,0 +1,40 @@
+package jackall.devrealm.adapter
+
+import android.content.Context
+import android.databinding.DataBindingUtil
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.ViewGroup
+import jackall.devrealm.R
+import jackall.devrealm.databinding.ListItemBinding
+import jackall.devrealm.viewmodel.ItemViewModel
+
+/**
+ * Created by matsumoto_k on 2017/11/08.
+ */
+class MainAdapter(val context: Context, val items: ArrayList<ItemViewModel>) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): RecyclerView.ViewHolder {
+        val binding = DataBindingUtil.inflate<ListItemBinding>(LayoutInflater.from(context), R.layout.list_item, parent, false)
+        return ViewHolder(binding)
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder?, position: Int) {
+
+    }
+
+    override fun getItemCount(): Int {
+        return items.count()
+    }
+
+    fun insert(item: ItemViewModel) {
+        items.add(item)
+        notifyItemInserted(itemCount)
+    }
+
+    fun remove(position: Int) {
+        items.removeAt(position)
+        notifyItemRemoved(position)
+    }
+
+    inner class ViewHolder(val binding: ListItemBinding) : RecyclerView.ViewHolder(binding.root)
+}
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