feat: Add room-type in room-name

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

 package chat.rocket.android.chatroom.ui
 
+import DrawableHelper
 import android.content.Context
 import android.content.Intent
 import android.os.Bundle
 import android.support.v4.app.Fragment
-import android.support.v7.app.AppCompatActivity
 import chat.rocket.android.R
 import chat.rocket.android.util.extensions.addFragment
 import chat.rocket.android.util.extensions.textContent
+import chat.rocket.common.model.RoomType
 import dagger.android.AndroidInjection
 import dagger.android.AndroidInjector
 import dagger.android.DispatchingAndroidInjector
@@ -73,6 +74,24 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
         setSupportActionBar(toolbar)
         supportActionBar?.setDisplayShowTitleEnabled(false)
         text_room_name.textContent = chatRoomName
+        when (chatRoomType) {
+            RoomType.CHANNEL.toString() -> {
+                text_room_name.textContent = "#" + chatRoomName
+            }
+            RoomType.PRIVATE_GROUP.toString() -> {
+                val drawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, this)
+                DrawableHelper.wrapDrawable(drawable)
+                DrawableHelper.tintDrawable(drawable, this, R.color.white)
+                DrawableHelper.compoundDrawable(text_room_name, drawable)
+                text_room_name.textContent = chatRoomName
+            }
+            RoomType.DIRECT_MESSAGE.toString() -> {
+                text_room_name.textContent = "@" + chatRoomName
+            }
+            else -> {
+                text_room_name.textContent = chatRoomName
+            }
+        }
         toolbar.setNavigationOnClickListener {
             finishActivity()
         }

app/src/main/java/chat/rocket/android/chatrooms/ui/ChatRoomsAdapter.kt

 package chat.rocket.android.chatrooms.ui
 
 import DateTimeHelper
+import DrawableHelper
 import android.content.Context
 import android.support.v4.content.ContextCompat
 import android.support.v7.widget.RecyclerView
@@ -69,7 +70,21 @@ class ChatRoomsAdapter(private val context: Context,
         }
 
         private fun bindName(chatRoom: ChatRoom, textView: TextView) {
-            textView.content = chatRoom.name
+            when (chatRoom.type) {
+                is RoomType.Channel -> {
+                    textView.textContent = "#" + chatRoom.name
+                }
+                is RoomType.PrivateGroup -> {
+                    DrawableHelper.compoundDrawable(textView, DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, context))
+                    textView.textContent = chatRoom.name
+                }
+                is RoomType.DirectMessage -> {
+                    textView.textContent = "@" + chatRoom.name
+                }
+                else -> {
+                    textView.textContent = chatRoom.name
+                }
+            }
         }
 
         private fun bindLastMessageDateTime(chatRoom: ChatRoom, textView: TextView) {