diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index 76ef2a2..21a59d0 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -52,7 +52,17 @@
         //myName = intentMain.getStringExtra("nickname");
 
         //--------------------------------------------------------------------------
+        //RoomViewModelへのアクセス
+        RoomViewModel roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
 
+        //LiveData(List<Member>)への購読
+        roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
+            private List<Member> members;
+            @Override
+            public void onChanged(List<Member> members) {
+
+            }
+        });
 
 
         //--------------------------------------------------------------------------
@@ -111,15 +121,7 @@
         TextView RoomIdText = findViewById(R.id.roomID);
         RoomIdText.setText(roomId);
 
-        /*roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
-            private List<Member> members;
-            @Override
-            public void onChanged(List<Member> members) {
-
-            }
-        });
-
-        roomViewModel.start(500);*/
+        roomViewModel.start(500);
 
     }
 
@@ -130,17 +132,6 @@
         startObserve();
     }
 
-    //-----------------------------------------------------------------
-    // VMの監視開始
-    private void startObserve() {
-        roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
-        roomViewModel.getRoomLiveData().observe(this, new Observer<RoomJson>() {
-            @Override
-            public void onChanged(RoomJson roomData) {
-                //新しいroomDataの処理
-            }
-        });
-    }*/
 
     /*private getMemberInformation(){