diff --git a/app/src/main/java/com/example/nemophila/MyPageActivity.java b/app/src/main/java/com/example/nemophila/MyPageActivity.java
index d71b37f..502a50b 100644
--- a/app/src/main/java/com/example/nemophila/MyPageActivity.java
+++ b/app/src/main/java/com/example/nemophila/MyPageActivity.java
@@ -14,6 +14,7 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
+import android.widget.ImageButton;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -31,7 +32,8 @@
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_mypage);
 
-        Nemophila nemophila = (Nemophila) getApplication();
+        //初期化
+        Nemophila nemophila = (Nemophila) this.getApplication();
         String uid = nemophila.getUid();
         String name = nemophila.getName();
         String token = nemophila.getToken();
@@ -39,7 +41,6 @@
         myName.setText(name);
         TextView id = (TextView) findViewById(R.id.id);
         id.setText(uid);
-        AccountViewModel accountViewModel = new ViewModelProvider(this).get(AccountViewModel.class);
 
         // 「閉じる」ボタンを押したときにメイン画面へ遷移する
         Button closeButton = (Button) findViewById(R.id.close);
@@ -88,6 +89,7 @@
         });
 
         //getNameLiveDataとの通信により今のユーザーネームを表示する
+        AccountViewModel accountViewModel = new ViewModelProvider(this).get(AccountViewModel.class);
         accountViewModel.getNameLiveData().observe(this, new Observer <String>() {
             @Override
             public void onChanged(String name) {
@@ -101,12 +103,12 @@
         RecyclerView rv = findViewById(R.id.postsList);
         LinearLayoutManager llm = new LinearLayoutManager(this);
         List<MyPageActDataModel> myPageActDataset = new ArrayList<>();
-        MyPageActivity.MyPageActAdapter adapter = new MyPageActivity.MyPageActAdapter(myPageActDataset) {
+        MyPageActAdapter adapter = new MyPageActAdapter(myPageActDataset) {
             @Override
-            void onDeleteButtonClick(View view, int position, MyPageActivity.MyPageActDataModel dataModel) {
+            void onDeleteButtonClick(View view, int position, MyPageActDataModel dataModel) {
                 new AlertDialog.Builder(MyPageActivity.this)
                         .setTitle("警告")
-                        .setMessage("この投稿を削除しますか？\n削除すると二度と元に戻せなくなります。")
+                        .setMessage("この投稿を削除しますか？")
                         .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialogInterface, int i) {
@@ -201,7 +203,7 @@
         public TextView rateView;
         public TextView genreView;
         public TextView commentView;
-        public Button deleteButton;
+        public ImageButton deleteButton;
 
         public MyPageActViewHolder(View view) {
             super(view);