diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index 90383d1..0cbb641 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -26,13 +26,16 @@
 import java.util.ArrayList;
 import java.util.List;
 
+import static java.lang.Math.abs;
+
 
 public class MemberRoomActivity extends AppCompatActivity {
 
     //RoomViewModel roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
 
     //フィールド
-    ArrayList<String> members = new ArrayList<>();
+    ArrayList<String> viewMembers = new ArrayList<>();
+    ArrayList<String> oldMembers = new ArrayList<>();
     String r = "roomid";
     String myName = "null";
 
@@ -47,24 +50,69 @@
         String roomId = ((Iris) getApplication()).getRid();
         String nickname = ((Iris) getApplication()).getNickname();
 
+
+
         //自分のなまえ
         Intent intentMain = getIntent();
         myName = intentMain.getStringExtra("nickname");
 
         //--------------------------------------------------------------------------
+        //メンバー表示
+        Member mn = new Member(myName);
+        mn.setBelongs("g");
+        mn.setMaster(false);
+
+        viewMembers.add(mn.getNickname());
+
+        //--------------------------------------------------------------------------
         //RoomViewModelへのアクセス
         RoomViewModel roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
 
         roomViewModel.setRid(roomId);
 
+        /*memberList = roomViewModel.getMembersLiveData().getValue();
+
+        memberList.forEach(m -> members.add(m.getNickname()));*/
+
+        ListView membersList = (ListView) findViewById(R.id.MembersList);
+
+        BaseAdapter adapter = new MemberListAdapter(this.getApplicationContext(), R.layout.member_list_layout, viewMembers);
+        membersList.setAdapter(adapter);
+
         //LiveData(List<Member>)への購読
-        roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
-            private List<Member> members;
+        /*roomViewModel.getMembersLiveData().observe(this, new Observer<List<Member>>() {
+            //private List<Member> members;
             @Override
-            public void onChanged(List<Member> members) {
+            public void onChanged(List<Member> irisMembers) {
+                int i = 0;
+                if(irisMembers.size() == oldMembers.size()) {
+
+                    do {
+                        if (irisMembers.get(i).getNickname().equals(oldMembers.get(i))) {
+                            i++;
+                        } else {
+                            viewMembers.clear();
+                            irisMembers.forEach(m -> viewMembers.add(m.getNickname()));
+                            System.arraycopy(viewMembers, 0, oldMembers, 0, viewMembers.size());
+
+                            BaseAdapter adapter = new MemberListAdapter(getApplicationContext(), R.layout.member_list_layout, viewMembers);
+                            membersList.setAdapter(adapter);
+
+                            break;
+                        }
+
+                    } while (i < oldMembers.size());
+                } else {
+                    viewMembers.clear();
+                    irisMembers.forEach(m -> viewMembers.add(m.getNickname()));
+                    System.arraycopy(viewMembers, 0, oldMembers, 0, viewMembers.size());
+
+                    BaseAdapter adapter = new MemberListAdapter(getApplicationContext(), R.layout.member_list_layout, viewMembers);
+                    membersList.setAdapter(adapter);
+                }
 
             }
-        });
+        });*/
 
         roomViewModel.getStateLiveData().observe(this, new Observer<Integer>() {
             @Override
@@ -81,39 +129,6 @@
         //各ボタン処理
         buttonProcesses();
 
-        //--------------------------------------------------------------------------
-        //メンバー表示
-        Member m1 = new Member("m1");
-        m1.setBelongs("r");
-        m1.setMaster(true);
-
-        Member m2 = new Member("m2");
-        m2.setBelongs("b");
-        m2.setMaster(true);
-
-        Member mn = new Member(myName);
-        mn.setBelongs("g");
-        mn.setMaster(false);
-
-        members.add(m1.getNickname());
-        members.add(m2.getNickname());
-
-        members.add(mn.getNickname());
-
-
-        ListView membersList = (ListView) findViewById(R.id.MembersList);
-
-        //ArrayAdapter<String> adapter = new MemberListAdapter(this.getApplicationContext());
-        //ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, members);
-        /*ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getApplicationContext(),
-                R.layout.member_list_layout, members);*/
-        /*ArrayAdapter<String> adapter = new ArrayAdapter<String>(this.getApplicationContext(),
-                android.R.layout.simple_list_item_1, members);*/
-
-        BaseAdapter adapter = new MemberListAdapter(this.getApplicationContext(),
-                R.layout.member_list_layout, members);
-        membersList.setAdapter(adapter);
-
 
 
         //---------------------------------------------------------------