diff --git a/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java b/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
index bf27c38..0eb7e41 100644
--- a/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
+++ b/app/src/main/java/org/ntlab/irisclient/viewmodels/RoomViewModel.java
@@ -1,6 +1,7 @@
 package org.ntlab.irisclient.viewmodels;
 
 import org.ntlab.irisclient.entities.RoomJson;
+import org.ntlab.irisclient.models.Settings;
 import org.ntlab.irisclient.resources.RoomsRest;
 
 import androidx.lifecycle.LiveData;
@@ -15,13 +16,20 @@
 
 public class RoomViewModel extends ViewModel {
 
-    private MutableLiveData<RoomJson> roomMutableLiveData;
-    private Retrofit retrofit;
+    //フィールド
+    final private MutableLiveData<RoomJson> roomMutableLiveData;
+    final private MutableLiveData<Settings> settingsMutableLiveData;
+    final private Retrofit retrofit;
 
-    //------------------------------------------------
+    //更新比較用フィールド
+    private Settings settingsPreData;
+    private RoomJson roomJsonPreData;
+
+    //------------------------------------------------------------------
     //コンストラクタ
     public RoomViewModel() {
         this.roomMutableLiveData = new MutableLiveData<>();
+        this.settingsMutableLiveData = new MutableLiveData<>();
         this.retrofit = new Retrofit.Builder()
                 .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/iris/")
                 .addConverterFactory(JacksonConverterFactory.create())
@@ -30,52 +38,66 @@
 
     //-----------------------------------------------------------------
     // getter
-    public LiveData<RoomJson> getLiveData() {
+    public LiveData<RoomJson> getRoomLiveData() {
         return this.roomMutableLiveData;
     }
+    public LiveData<Settings> getSettingsLiveData() {
+        return this.settingsMutableLiveData;
+    }
 
-    //-----------------------------------------------------------------
+    //-----------------------------------------------------------------------------
     // updates
-    //メンバーの更新、設定情報の更新
-    public void updateMembers(String rid) {
-        final RoomsRest roomsRest = retrofit.create(RoomsRest.class);
+    //部屋の情報の更新(RoomJson)
+    public void updateRoom(String rid) {
 
+        final RoomsRest roomsRest = retrofit.create(RoomsRest.class);
         Call<RoomJson> call = roomsRest.getRoomMember(rid);
 
         call.enqueue(new Callback<RoomJson>() {
             @Override
             public void onResponse(Call<RoomJson> call, Response<RoomJson> response) {
                 if (response.isSuccessful()){
-                    roomMutableLiveData.setValue(response.body());
+
+                    if(response.body().equals(roomJsonPreData)){
+                        //値が一緒なら書き換えない
+                    }else{
+                        //値が異なるときのみライブデータを上書き
+                        roomMutableLiveData.setValue(response.body());
+                        roomJsonPreData = response.body();
+                    }
+
                 }
             }
-
             @Override
             public void onFailure(Call<RoomJson> call, Throwable t) {
-
             }
         });
     }
 
-    /*
-    //設定情報の通信、返り値はRoomJsonなら上記のupdateのみで十分なので、不要か？
+    //設定情報の更新(Settings)
     public void updateSettings(String rid) {
+
         final RoomsRest roomsRest = retrofit.create(RoomsRest.class);
+        Call<Settings> call = roomsRest.getSettings(rid);
 
-        Call<RoomJson> call = roomsRest.getSettings(rid);
-
-        call.enqueue(new Callback<RoomJson>() {
+        call.enqueue(new Callback<Settings>() {
             @Override
-            public void onResponse(Call<RoomJson> call, Response<RoomJson> response) {
+            public void onResponse(Call<Settings> call, Response<Settings> response) {
                 if (response.isSuccessful()){
-                    roomMutableLiveData.setValue(response.body());
+
+                    if(response.body().equals(settingsPreData)){
+                        //値が一緒なら書き換えない
+                    }else{
+                        //値が異なるときのみライブデータを上書き
+                        settingsMutableLiveData.setValue(response.body());
+                        settingsPreData = response.body();
+                    }
                 }
             }
 
             @Override
-            public void onFailure(Call<RoomJson> call, Throwable t) {
-
+            public void onFailure(Call<Settings> call, Throwable t) {
             }
         });
-    }*/
+    }
 }