diff --git a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
index 5d1ba71..76ef2a2 100644
--- a/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
+++ b/app/src/main/java/org/ntlab/irisclient/MemberRoomActivity.java
@@ -17,20 +17,24 @@
 import android.widget.ListView;
 import android.widget.TextView;
 
+import com.google.android.material.snackbar.Snackbar;
+
 import org.ntlab.irisclient.entities.RoomJson;
 import org.ntlab.irisclient.models.Member;
 import org.ntlab.irisclient.viewmodels.RoomViewModel;
 
 import java.util.ArrayList;
+import java.util.List;
 
 
 public class MemberRoomActivity extends AppCompatActivity {
 
+    //RoomViewModel roomViewModel = new ViewModelProvider(this).get(RoomViewModel.class);
+
     //フィールド
     ArrayList<String> members = new ArrayList<>();
     String r = "roomid";
     String myName = "null";
-    private RoomViewModel roomViewModel;
 
 
 
@@ -105,7 +109,18 @@
         //---------------------------------------------------------------
         //部屋ID情報
         TextView RoomIdText = findViewById(R.id.roomID);
-        RoomIdText.setText(r);
+        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);*/
+
     }
 
     /*
@@ -191,9 +206,7 @@
         copyButton.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                r = "コピーボタン検知しました";
-                TextView RoomIdText = findViewById(R.id.roomID);
-                RoomIdText.setText(r);
+                Snackbar.make(v, "コピーしました", Snackbar.LENGTH_LONG).show();
             }
         });
     }