diff --git a/app/src/main/java/com/example/cosmosclient/AddMemberActivity.java b/app/src/main/java/com/example/cosmosclient/AddMemberActivity.java
deleted file mode 100644
index 29a1588..0000000
--- a/app/src/main/java/com/example/cosmosclient/AddMemberActivity.java
+++ /dev/null
@@ -1,45 +0,0 @@
-package com.example.cosmosclient;
-
-import android.content.Intent;
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-import android.view.View;
-import android.widget.Button;
-
-public class AddMemberActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_add_member);
-
-        //ここからQRからメンバー追加の画面遷移処理画面を記述
-        Button qrButton = findViewById(R.id.addQR);
-        qrButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
-                startActivity(intent);
-            }
-        });
-        //ここからIDからメンバー追加の画面遷移処理画面を記述
-        Button idButton = findViewById(R.id.addID);
-        idButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
-                startActivity(intent);
-            }
-        });
-        //ここからMailからメンバー追加の画面遷移処理画面を記述
-        Button mailButton = findViewById(R.id.addMail);
-        mailButton.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
-                startActivity(intent);
-            }
-        });
-
-    }
-}
diff --git a/app/src/main/java/com/example/cosmosclient/DisplayQRActivity.java b/app/src/main/java/com/example/cosmosclient/DisplayQRActivity.java
deleted file mode 100644
index 0552445..0000000
--- a/app/src/main/java/com/example/cosmosclient/DisplayQRActivity.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.example.cosmosclient;
-
-import android.support.v7.app.AppCompatActivity;
-import android.os.Bundle;
-
-public class DisplayQRActivity extends AppCompatActivity {
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_display_qr);
-    }
-}
diff --git a/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java b/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java
new file mode 100644
index 0000000..c1b8f1d
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/AddMemberActivity.java
@@ -0,0 +1,47 @@
+package com.example.cosmosclient.views;
+
+import android.content.Intent;
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+
+import com.example.cosmosclient.R;
+
+public class AddMemberActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_add_member);
+
+        //ここからQRからメンバー追加の画面遷移処理画面を記述
+        Button qrButton = findViewById(R.id.addQR);
+        qrButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
+                startActivity(intent);
+            }
+        });
+        //ここからIDからメンバー追加の画面遷移処理画面を記述
+        Button idButton = findViewById(R.id.addID);
+        idButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
+                startActivity(intent);
+            }
+        });
+        //ここからMailからメンバー追加の画面遷移処理画面を記述
+        Button mailButton = findViewById(R.id.addMail);
+        mailButton.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                Intent intent = new Intent(getApplication(), DisplayQRActivity.class);
+                startActivity(intent);
+            }
+        });
+
+    }
+}
diff --git a/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java b/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java
new file mode 100644
index 0000000..7d2e752
--- /dev/null
+++ b/app/src/main/java/com/example/cosmosclient/views/DisplayQRActivity.java
@@ -0,0 +1,15 @@
+package com.example.cosmosclient.views;
+
+import android.support.v7.app.AppCompatActivity;
+import android.os.Bundle;
+
+import com.example.cosmosclient.R;
+
+public class DisplayQRActivity extends AppCompatActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_display_qr);
+    }
+}