Add MessageListAdapter.kt

app/src/main/java/chat/rocket/android/app/chatroom/MessageListAdapter.kt

+package chat.rocket.android.app.chatroom
+
+import android.content.Context
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import chat.rocket.android.R
+import com.facebook.drawee.view.SimpleDraweeView
+import kotlinx.android.synthetic.main.item_message.view.*
+
+class MessageListAdapter(private var dataSet: MutableList<Message>, private val context: Context) : RecyclerView.Adapter<MessageListAdapter.ViewHolder>() {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
+        val view = LayoutInflater.from(parent.context).inflate(R.layout.item_message, parent, false)
+        return ViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
+        val message = dataSet[position]
+
+        holder.userAvatar.setImageURI(message.user.avatarUri)
+        holder.userName.text = message.user.name
+        holder.time.text = message.time.toString()
+        holder.content.text = message.content
+    }
+
+    override fun getItemCount(): Int = dataSet.size
+
+    class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val userAvatar: SimpleDraweeView = itemView.image_user_avatar
+        val userName: TextView = itemView.text_user_name
+        val time: TextView = itemView.text_message_time
+        val content: TextView = itemView.text_content
+    }
+}
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