How to get all created rooms and join any one of them in PHOTON

@aditya Thanks for this suggestion. I have tried it but I am getting PhotonNetwork.GetRoomList().Length=0 even after creation of room.

  private RoomInfo[] roomsList;
  void OnGUI()
  {
     if (!PhotonNetwork.connected)
     {
         GUILayout.Label(PhotonNetwork.connectionStateDetailed.ToString());
         PhotonNetwork.ConnectUsingSettings(Version);
         
     }
     else if (PhotonNetwork.room == null)
     {
         print ("not in any room");
         // Create Room
         if (GUI.Button (new Rect (100, 100, 250, 100), "Start Server. No game to Join now.")) {
             
             RoomOptions roomOptions = new RoomOptions (){ IsVisible=false , MaxPlayers=10 };
             PhotonNetwork.CreateRoom (roomName + Guid.NewGuid ().ToString ("N"), roomOptions, TypedLobby.Default);
             print ("number of rooms = "+roomsList.Length);
         }
         
         // Join Room
         if (roomsList != null)
         {
             for (int i = 0; i < roomsList.Length; i++)
             {
                 if (GUI.Button(new Rect (100, 50 + (50 * i), 200, 50), "Join Game" + roomsList[i].name))
                     PhotonNetwork.JoinRoom(roomsList[i].name);
                 
             }
         }
         if(roomsList!=null)
             GUI.Box(new Rect(50,50,100,20),roomsList.Length+"");

     }

 }

 void OnReceivedRoomListUpdate()
 {
     roomsList = PhotonNetwork.GetRoomList();
     print ("room list count = "+roomsList.Length);
 }

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