diff --git a/app/src/main/java/com/example/sprout/refactor/activity/RoomListActivity.java b/app/src/main/java/com/example/sprout/refactor/activity/RoomListActivity.java
index 00c00eb..a53406d 100644
--- a/app/src/main/java/com/example/sprout/refactor/activity/RoomListActivity.java
+++ b/app/src/main/java/com/example/sprout/refactor/activity/RoomListActivity.java
@@ -9,53 +9,77 @@
 import com.example.sprout.R;
 import com.example.sprout.databinding.RfActivityRoomListBinding;
 import com.example.sprout.refactor.adapter.RoomListAdapter;
-import com.example.sprout.refactor.common.ActivityEvent;
 import com.example.sprout.refactor.contract.ViewContract;
 import com.example.sprout.refactor.viewmodel.RoomListViewModel;
 
+import io.reactivex.android.schedulers.AndroidSchedulers;
+import io.reactivex.disposables.CompositeDisposable;
+import io.reactivex.schedulers.Schedulers;
+
 /**
  * ルーム一覧のActivity
  *
  * @author matsumoto_k
  */
-public class RoomListActivity extends AppCompatActivity implements ViewContract {
+public class RoomListActivity extends AppCompatActivity {
+
+    private RfActivityRoomListBinding binding = null;
+    private RoomListViewModel roomListViewModel = null;
+    private CompositeDisposable subscriptions = new CompositeDisposable();
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        RfActivityRoomListBinding binding = DataBindingUtil.setContentView(this, R.layout.rf_activity_room_list);
-        RoomListViewModel roomMainViewModel = new RoomListViewModel(new RoomListAdapter(this), (ViewContract) this);
-        binding.setViewModel(roomMainViewModel);
-        getLifecycle().addObserver(roomMainViewModel);
+        binding = DataBindingUtil.setContentView(this, R.layout.rf_activity_room_list);
+        roomListViewModel = new RoomListViewModel(new RoomListAdapter(this));
+        binding.setViewModel(roomListViewModel);
+        getLifecycle().addObserver(roomListViewModel);
     }
 
     @Override
-    public void startActivity(ActivityEvent event) {
-        switch (event) {
-            case CREATE_ROOM:
-                startActivity(new Intent(RoomListActivity.this, RoomCreateActivity.class));
-                break;
-            case ROOM_MAIN:
-                startActivity(new Intent(RoomListActivity.this, RoomMainActivity.class));
-                break;
-            case INPUT_KEY:
-                startActivity(new Intent(RoomListActivity.this, RoomInputKeyActivity.class));
-                break;
-        }
+    protected void onResume() {
+        super.onResume();
+        subscribe();
     }
 
     @Override
-    public void finishActivity() {
-
+    protected void onPause() {
+        super.onPause();
+        dispose();
     }
 
-    @Override
-    public void showShortToast(String message) {
-        Toast.makeText(this, message, Toast.LENGTH_SHORT).show();
+    private void subscribe() {
+        subscriptions.add(
+                roomListViewModel.getToastMessanger()
+                        .observeOn(AndroidSchedulers.mainThread())
+                        .subscribe(toastMessage -> {
+                            switch (toastMessage.getLength()) {
+                                case SHORT:
+                                    Toast.makeText(this, toastMessage.getMessage(), Toast.LENGTH_SHORT).show();
+                                    break;
+                                case LONG:
+                                    Toast.makeText(this, toastMessage.getMessage(), Toast.LENGTH_LONG).show();
+                                    break;
+                            }
+                        })
+        );
+        // 画面遷移の購読
+        subscriptions.add(
+                roomListViewModel.getNavigationMessenger()
+                        .observeOn(Schedulers.computation())
+                        .subscribe(navigationMessage -> {
+                            switch (navigationMessage.getType()) {
+                                case Start:
+                                    startActivity(new Intent(RoomListActivity.this, navigationMessage.getClazz()));
+                                    break;
+                                case Finsih:
+                                    finish();
+                            }
+                        })
+        );
     }
 
-    @Override
-    public void showLongToast(String message) {
-        Toast.makeText(this, message, Toast.LENGTH_LONG).show();
+    private void dispose() {
+        subscriptions.dispose();
     }
 }