diff --git a/.idea/misc.xml b/.idea/misc.xml
index 860da66..d5d35ec 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/Animation.java b/app/src/main/java/org/ntlab/acanthus_client/entities/Animation.java
index fea8f51..db26207 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/Animation.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/Animation.java
@@ -27,7 +27,7 @@
     private ArrayList<String> hashTag = new ArrayList<>();
     private ArrayList<Editor> editors = new ArrayList<>();
     private ArrayList<Account> invites = new ArrayList<>();
-    private HashMap<Integer, Integer> pageMap = new HashMap<>();
+    private HashMap<Integer, Page> pageMap = new HashMap<>();
     private Boolean isDummy;
 
     //-----------------------------------------------------------------
@@ -90,7 +90,7 @@
         return this.editors;
     }
 
-    public HashMap<Integer, Integer> getPageMap() {
+    public HashMap<Integer, Page> getPageMap() {
         return this.pageMap;
     }
 
diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/Layer.java b/app/src/main/java/org/ntlab/acanthus_client/entities/Layer.java
index 99927bc..702ba20 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/Layer.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/Layer.java
@@ -1,6 +1,23 @@
 package org.ntlab.acanthus_client.entities;
 
+import java.util.ArrayList;
+
 //-----------------------------------------------------------------
 // レイヤー情報
 public class Layer {
+    private ArrayList<Stroke> strokes;
+
+    //-----------------------------------------------------------------
+    // getter
+    public ArrayList<Stroke> getStrokes() {
+        return strokes;
+    }
+
+    //-----------------------------------------------------------------
+    // setter
+    public void setStrokes(ArrayList<Stroke> strokes) {
+        this.strokes = strokes;
+    }
+    //-----------------------------------------------------------------
+
 }
diff --git a/app/src/main/java/org/ntlab/acanthus_client/entities/Page.java b/app/src/main/java/org/ntlab/acanthus_client/entities/Page.java
index 61b4502..baf5612 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/entities/Page.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/entities/Page.java
@@ -3,4 +3,19 @@
 //-----------------------------------------------------------------
 // ページ情報
 public class Page {
+    private Layer layers;
+
+    //-----------------------------------------------------------------
+    // getter
+    public Layer getLayers() {
+        return layers;
+    }
+
+    //-----------------------------------------------------------------
+    // setter
+    public void setLayers(Layer layers) {
+        this.layers = layers;
+    }
+    //-----------------------------------------------------------------
+
 }
diff --git a/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java b/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
index 0ef487d..b20240d 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/resources/gallery/StrokesRest.java
@@ -4,6 +4,7 @@
 import org.ntlab.acanthus_client.entities.Stroke;
 
 import java.util.ArrayList;
+import java.util.Collection;
 
 import retrofit2.Call;
 import retrofit2.http.Field;
@@ -19,19 +20,19 @@
     //-----------------------------------------------------------------
     //
     @GET("gallery/{aid}/pageMap/0/layers/0/strokes")
-    Call<ArrayList<Stroke>> getStrokes(@Path("aid") Integer aid);
+    Call<Collection<Stroke>> getStrokes(@Path("aid") Integer aid);
 
     //-----------------------------------------------------------------
     //
     @FormUrlEncoded
     @POST("gallery/{aid}/pageMap/0/layers/0/strokes")
-    Call<Integer> addStrokes(@Path("aid") Integer aid, @Field("uid") Integer uid, @Field("uidToken") String uidToken,
+    Call<Integer> addStroke(@Path("aid") Integer aid, @Field("uid") Integer uid, @Field("uidToken") String uidToken,
                     @Field("pen") Integer pen, @Field("color") Integer color, @Field("thick") Integer thick);
 
     //-----------------------------------------------------------------
     //
     @GET("gallery/{aid}/pageMap/0/layers/0/strokes/{strokeNo}/position")
-    Call<ArrayList<Position>> getPositions(@Path("aid") Integer aid, @Path("strokeNo") Integer strokeNo);
+    Call<Collection<Position>> getPositions(@Path("aid") Integer aid, @Path("strokeNo") Integer strokeNo);
 
     //-----------------------------------------------------------------
     //
diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintViewModel.java b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintViewModel.java
index 8f9dc88..1c453cf 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintViewModel.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/paint/PaintViewModel.java
@@ -3,12 +3,24 @@
 import android.graphics.Paint;
 import android.view.View;
 
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
 import org.ntlab.acanthus_client.Acanthus;
+import org.ntlab.acanthus_client.entities.Account;
+import org.ntlab.acanthus_client.entities.Animation;
+import org.ntlab.acanthus_client.entities.Stroke;
 import org.ntlab.acanthus_client.resources.accounts.LoginRest;
 import org.ntlab.acanthus_client.resources.gallery.StrokesRest;
 
+import java.text.CollationElementIterator;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Response;
@@ -19,7 +31,12 @@
 
 //-----------------------------------------------------------------
 //
-public class PaintViewModel extends ViewModel {
+public class PaintViewModel extends ViewModel implements Runnable {
+
+    private MutableLiveData<Animation> animationMutableLiveData;
+
+    private int currentStrokeNo;
+    private Acanthus acanthus;
     private Retrofit retrofit;
 
     //-----------------------------------------------------------------
@@ -30,21 +47,51 @@
                 .addConverterFactory(ScalarsConverterFactory.create())
                 .addConverterFactory(JacksonConverterFactory.create())
                 .build();
+
+        startObservationOfChangedStroke();
     }
 
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
     //
-    public void addPosition(Acanthus acanthus, int strokeNo, float x, float y) {
+    public void addStroke() {
         final StrokesRest strokesRest = retrofit.create(StrokesRest.class);
 
         //-----------------------------------------------------------------
         //
-        Call<Integer> call = strokesRest.addPositions(acanthus.getAid(), strokeNo, x, y);
+        Call<Integer> call = strokesRest.addStroke(
+                acanthus.getAid(),acanthus.getPreferenceUid(), acanthus.getPreferenceToken(),0,0,10);
         call.enqueue(new Callback<Integer>() {
             @Override
             public void onResponse(Call<Integer> call, Response<Integer> response) {
-//                if(response.isSuccessful())
+                if (response.isSuccessful()) {
+                    // Animationにおける
+                }
+            }
+
+            @Override
+            public void onFailure(Call<Integer> call, Throwable t) {
+
+            }
+        });
+
+
+    }
+
+    //-----------------------------------------------------------------
+    // 座標追加API（POST）
+    public void addPosition(Acanthus acanthus, float x, float y) {
+        final StrokesRest strokesRest = retrofit.create(StrokesRest.class);
+
+        //-----------------------------------------------------------------
+        //
+        Call<Integer> call = strokesRest.addPositions(acanthus.getAid(), this.currentStrokeNo, x, y);
+        call.enqueue(new Callback<Integer>() {
+            @Override
+            public void onResponse(Call<Integer> call, Response<Integer> response) {
+                if (response.isSuccessful()) {
+                    // Animationの座標を更新していく
+                }
             }
 
             @Override
@@ -55,9 +102,32 @@
     }
 
     //-----------------------------------------------------------------
-    //
-    public void getRemoteAnimationInfo() {
+    // 一定間隔でサーバー上の筆跡を取得する（GET）
+    public void startObservationOfChangedStroke() {
+        ScheduledThreadPoolExecutor threadPoolExecutor = new ScheduledThreadPoolExecutor(1);
+        threadPoolExecutor.scheduleWithFixedDelay(this, 1000L, 100L, TimeUnit.MICROSECONDS);
     }
 
+    //-----------------------------------------------------------------
+    // 筆跡を取得してローカルデータを更新する
+    @Override
+    public void run() {
+        final StrokesRest strokesRest = retrofit.create(StrokesRest.class);
 
+        Call<Collection<Stroke>> call = strokesRest.getStrokes(acanthus.getAid());
+        call.enqueue(new Callback<Collection<Stroke>>() {
+            @Override
+            public void onResponse(Call<Collection<Stroke>> call, Response<Collection<Stroke>> response) {
+                if (response.isSuccessful()) {
+                    // ローカルのページ情報を更新する
+                }
+            }
+
+            @Override
+            public void onFailure(Call<Collection<Stroke>> call, Throwable t) {
+
+            }
+        });
+    }
+    //-----------------------------------------------------------------
 }
diff --git a/app/src/main/java/org/ntlab/acanthus_client/views/sign_up/SignUpActivity.java b/app/src/main/java/org/ntlab/acanthus_client/views/sign_up/SignUpActivity.java
index c87643a..c794096 100644
--- a/app/src/main/java/org/ntlab/acanthus_client/views/sign_up/SignUpActivity.java
+++ b/app/src/main/java/org/ntlab/acanthus_client/views/sign_up/SignUpActivity.java
@@ -8,6 +8,7 @@
 import android.widget.TextView;
 
 import org.ntlab.acanthus_client.R;
+import org.ntlab.acanthus_client.databinding.ActivitySignUpBinding;
 import org.ntlab.acanthus_client.entities.AccountUidJson;
 import org.ntlab.acanthus_client.resources.accounts.AccountsRest;
 import org.ntlab.acanthus_client.views.login.LoginScreenActivity;
@@ -23,59 +24,36 @@
 //-----------------------------------------------------------------
 //
 public class SignUpActivity extends AppCompatActivity {
-    //-----------------------------------------------------------------
-    // 各Viewの列挙型
-    public enum EditTexts {
-        nameForm(0), emailForm(1), passwordForm(2), signUpButton(3), loginButton(4);
-
-        private int textId;
-
-        //-----------------------------------------------------------------
-        private EditTexts(int textId) {
-            this.textId = textId;
-        }
-
-        //-----------------------------------------------------------------
-        // getter
-        public int getTextId() {
-            return this.textId;
-        }
-    }
-
-    //-----------------------------------------------------------------
-    private ArrayList<TextView> views = new ArrayList<>();
+    private ActivitySignUpBinding binding;
 
     //-----------------------------------------------------------------
     //
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_sign_up);
-        initView();
-        Retrofit retrofit = new Retrofit.Builder()
-                .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/acanthus/")
-                .addConverterFactory(JacksonConverterFactory.create())
-                .build();
-        final AccountsRest accountsRest = retrofit.create(AccountsRest.class);
+        init();
 
-        onClickSignUp(accountsRest);
+        onClickSignUp();
         onClickAlreadyLoggedIn();
     }
 
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
     // サインアップ時押下時
-    private void onClickSignUp(AccountsRest accountsRest) {
-        Button signUpButton = (Button) views.get(EditTexts.signUpButton.getTextId());
+    private void onClickSignUp() {
+        Retrofit retrofit = new Retrofit.Builder()
+                .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/acanthus/")
+                .addConverterFactory(JacksonConverterFactory.create())
+                .build();
+        final AccountsRest accountsRest = retrofit.create(AccountsRest.class);
+
+        Button signUpButton = (Button) binding.buttonSignUpRegister;
 
         //
         signUpButton.setOnClickListener(v -> {
-            String name = views.get(EditTexts.nameForm.getTextId()).getText().toString();
-            ;
-            String emailAddress = views.get(EditTexts.emailForm.getTextId()).getText().toString();
-            ;
-            String password = views.get(EditTexts.passwordForm.getTextId()).getText().toString();
-            ;
+            String name = binding.editTextTextSignUpPersonName.getText().toString();
+            String emailAddress = binding.editTextTextSignUpEmailAddress.getText().toString();
+            String password = binding.editTextTextSignUpPassword.getText().toString();
 
             Call<AccountUidJson> call = accountsRest.createAccount(name, emailAddress, password);
             call.enqueue(new Callback<AccountUidJson>() {
@@ -95,7 +73,7 @@
     //-----------------------------------------------------------------
     // アカウント所持ボタン押下処理
     private void onClickAlreadyLoggedIn() {
-        Button alreadyLoggedInButton = (Button) views.get(EditTexts.loginButton.getTextId());
+        Button alreadyLoggedInButton = (Button) binding.buttonAlreadyLoggedIn;
 
         // ログイン画面に遷移
         alreadyLoggedInButton.setOnClickListener(v -> {
@@ -115,20 +93,17 @@
     //-----------------------------------------------------------------
     // 登録内容のクリア
     private void clearForm() {
-        for (int i = EditTexts.nameForm.getTextId(); i <= EditTexts.passwordForm.getTextId(); i++) {
-            views.get(i).getEditableText().clear();
-        }
-
+        binding.editTextTextSignUpPersonName.getEditableText().clear();
+        binding.editTextTextSignUpEmailAddress.getEditableText().clear();
+        binding.editTextTextSignUpPassword.getEditableText().clear();
     }
 
     //-----------------------------------------------------------------
     //-----------------------------------------------------------------
-    //
-    private void initView() {
-        views.add(findViewById(R.id.editTextTextSignUpPersonName));
-        views.add(findViewById(R.id.editTextTextSignUpEmailAddress));
-        views.add(findViewById(R.id.editTextTextSignUpPassword));
-        views.add(findViewById(R.id.buttonSignUpRegister));
-        views.add(findViewById(R.id.buttonAlreadyLoggedIn));
+    // 初期化
+    private void init() {
+        setContentView(R.layout.activity_sign_up);
+        binding = ActivitySignUpBinding.inflate(getLayoutInflater());
     }
+    //-----------------------------------------------------------------
 }
\ No newline at end of file