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 57741c6..5e4f54c 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
@@ -26,7 +26,10 @@
 public class PaintActivity extends AppCompatActivity {
 
     private PaintCanvas paintCanvas;
+    private PaintOnionCanvas paintOnionCanvas;
+
     private PaintToolBar paintToolBar;
+
     private PaintScreenShot paintScreenShot;
     private ActivityPaintBinding binding;
     private PaintViewModel paintViewModel;
@@ -56,14 +59,13 @@
             @Override
             public void onClick(View v) {
                 //bottonタップで表示されてたら非表示にする。
-                if(buttonView) {
+                if (buttonView) {
                     findViewById(R.id.capture).setVisibility(View.INVISIBLE);
                     findViewById(R.id.image).setVisibility(View.INVISIBLE);
                     findViewById(R.id.textView3).setVisibility(View.INVISIBLE);
 
                     buttonView = false;
-                }
-                else {
+                } else {
                     findViewById(R.id.capture).setVisibility(View.VISIBLE);
                     findViewById(R.id.image).setVisibility(View.VISIBLE);
                     findViewById(R.id.textView3).setVisibility(View.VISIBLE);
@@ -113,7 +115,10 @@
         setContentView(binding.getRoot());
 
         paintCanvas = (PaintCanvas) findViewById(R.id.myCanvas);
-        paintCanvas.setPaintViewModel(paintViewModel);
+        paintCanvas.init(paintViewModel);
+
+        paintOnionCanvas = findViewById(R.id.paintOnionCanvas);
+        paintOnionCanvas.init(paintViewModel);
 
         paintScreenShot = new PaintScreenShot(this);
         paintToolBar = new PaintToolBar(this, paintCanvas);
@@ -126,18 +131,18 @@
     //-----------------------------------------------------------------
     //
     private void startObserve() {
-        paintViewModel.getPageNo().observe(this, new Observer<Integer>() {
-            @Override
-            public void onChanged(Integer i) {
-                binding.buttonAddPage.setText(String.valueOf(i));
-            }
-        });
-        paintViewModel.getStroke().observe(this, new Observer<Collection<Stroke>>() {
+
+        // 現在のStrokeに変更がある度に取得
+
+
+        // 前のStrokeに変更がある度に取得
+        paintViewModel.getPreStrokes().observe(this, new Observer<Collection<Stroke>>() {
             @Override
             public void onChanged(Collection<Stroke> strokes) {
-                    paintCanvas.getCanvas();
+                paintOnionCanvas.updateCanvas();
             }
         });
+
 //1時的コメントアウトここから
         //        paintViewModel.getmStrokeNo().observe(this, new Observer<Integer>() {
 //            @Override