diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
index bb177bc..16f5e75 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintActivity.java
@@ -1,13 +1,11 @@
 package org.ntlab.acanthus_client.views.paint;
 
-import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProvider;
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.view.MenuItem;
 import android.view.View;
 import android.widget.TextView;
 
@@ -23,7 +21,6 @@
 
     private PaintCanvas paintCanvas;
     private PaintToolBar paintToolBar;
-
     private ActivityPaintBinding binding;
     private PaintViewModel paintViewModel;
 
@@ -78,7 +75,6 @@
         Acanthus acanthus = (Acanthus) getApplication();
         paintViewModel = new ViewModelProvider(this).get(PaintViewModel.class);
         paintViewModel.init(acanthus);
-        paintToolBar = new PaintToolBar(this, paintCanvas);
 
         startObserve();
     }
@@ -92,8 +88,8 @@
         paintCanvas = (PaintCanvas) findViewById(R.id.myCanvas);
         paintCanvas.setPaintViewModel(paintViewModel);
 
-        BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navPaint);
-        navigation.setOnNavigationItemReselectedListener(paintToolBar.getOnNavigationItemReselectedListener());
+        paintToolBar = new PaintToolBar(this, paintCanvas);
+
     }
 
     //-----------------------------------------------------------------
diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintToolBar.java b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintToolBar.java
index ef2ddb3..6ea82bf 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintToolBar.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintToolBar.java
@@ -11,51 +11,56 @@
 
 import org.ntlab.acanthus_client.Acanthus;
 import org.ntlab.acanthus_client.R;
+import org.ntlab.acanthus_client.views.MainActivity;
 
+//-----------------------------------------------------------------
+//　描画シーンの下部のツールバー
 public class PaintToolBar {
-    private BottomNavigationView.OnNavigationItemReselectedListener onNavigationItemReselectedListener;
+    private BottomNavigationView bottomNavigationView;
+    private BottomNavigationView.OnNavigationItemSelectedListener onNavigationItemSelectedListener;
 
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
     public PaintToolBar(AppCompatActivity appCompatActivity, PaintCanvas paintCanvas) {
+        this.bottomNavigationView = (BottomNavigationView) appCompatActivity.findViewById(R.id.navPaint);
 
-        onNavigationItemReselectedListener
-                = new BottomNavigationView.OnNavigationItemReselectedListener() {
+        setNavigationListener(appCompatActivity, paintCanvas);
+    }
+
+    //-----------------------------------------------------------------
+    //-----------------------------------------------------------------
+    // ナビゲーションバーのタッチ監視
+    private void setNavigationListener(AppCompatActivity appCompatActivity, PaintCanvas paintCanvas) {
+        this.onNavigationItemSelectedListener = new BottomNavigationView.OnNavigationItemSelectedListener() {
             @Override
-            public void onNavigationItemReselected(@NonNull MenuItem item) {
+            public boolean onNavigationItemSelected(@NonNull MenuItem item) {
                 switch (item.getItemId()) {
-                    case R.id.navigation_pen:
-                        break;
-
+                    //-----------------------------------------------------------------
+                    //
                     case R.id.navigation_clear:
                         paintCanvas.clearCanvas();
-                        break;
-
+                        return true;
+                    //-----------------------------------------------------------------
+                    //
                     case R.id.navigation_invite:
                         transitionInviteActivity(appCompatActivity);
-                        break;
-
+                        return true;
                 }
+
+                return true;
             }
         };
+
+        bottomNavigationView.setOnNavigationItemSelectedListener(this.onNavigationItemSelectedListener);
     }
 
     //-----------------------------------------------------------------
-    //
-    public BottomNavigationView.OnNavigationItemReselectedListener getOnNavigationItemReselectedListener() {
-        return this.onNavigationItemReselectedListener;
-    }
-
-    //-----------------------------------------------------------------
-    //-----------------------------------------------------------------
     // 招待ページへ移動
     private void transitionInviteActivity(AppCompatActivity appCompatActivity) {
         Acanthus acanthus = (Acanthus) appCompatActivity.getApplication();
-        Intent intent = new Intent(acanthus, InviteActivity.class);
+        Intent intent = new Intent(acanthus, MainActivity.class);
         appCompatActivity.startActivity(intent);
     }
-
-    //-----------------------------------------------------------------
     //-----------------------------------------------------------------
 
 }