diff --git a/.idea/deploymentTargetDropDown.xml b/.idea/deploymentTargetDropDown.xml
index 40556a2..498ac9e 100644
--- a/.idea/deploymentTargetDropDown.xml
+++ b/.idea/deploymentTargetDropDown.xml
@@ -7,11 +7,11 @@
         <deviceKey>
           <Key>
             <type value="VIRTUAL_DEVICE_PATH" />
-            <value value="C:\Users\student\.android\avd\Nexus_5X_API_29.avd" />
+            <value value="C:\Users\student\.android\avd\Pixel_3_API_28.avd" />
           </Key>
         </deviceKey>
       </Target>
     </targetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2023-07-06T08:34:46.312130900Z" />
+    <timeTargetWasSelectedWithDropDown value="2023-07-13T06:11:15.671289300Z" />
   </component>
 </project>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
index 54ed16b..743778d 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -10,9 +10,12 @@
         <entry key="..\:/Users/Student/StudioProjects/NemophilaClient/app/src/main/res/layout/activity_login.xml" value="0.13221884498480244" />
         <entry key="..\:/Users/Student/StudioProjects/NemophilaClient/app/src/main/res/layout/activity_main.xml" value="0.25" />
         <entry key="..\:/Users/Student/StudioProjects/NemophilaClient/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml" value="0.226" />
+        <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/drawable/circle_button.xml" value="0.365" />
+        <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/drawable/favorite_button.xml" value="0.365" />
         <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/layout/activity_friend.xml" value="0.36666666666666664" />
         <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/layout/activity_shop.xml" value="0.36666666666666664" />
         <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/layout/activity_shop_create.xml" value="0.36666666666666664" />
+        <entry key="..\:/Users/student/AndroidStudioProjects/NemophilaClient/app/src/main/res/layout/layout_friends_activity.xml" value="0.30570652173913043" />
         <entry key="..\:/Users/student/StudioProjects/NemophilaClient/app/src/main/res/drawable/circle_button.xml" value="0.1545" />
         <entry key="..\:/Users/student/StudioProjects/NemophilaClient/app/src/main/res/drawable/ic_current_location.xml" value="0.1545" />
         <entry key="..\:/Users/student/StudioProjects/NemophilaClient/app/src/main/res/drawable/ic_mypage.xml" value="0.1545" />
diff --git a/app/src/main/java/com/example/nemophila/FriendActivity.java b/app/src/main/java/com/example/nemophila/FriendActivity.java
index 89066d2..d611634 100644
--- a/app/src/main/java/com/example/nemophila/FriendActivity.java
+++ b/app/src/main/java/com/example/nemophila/FriendActivity.java
@@ -8,6 +8,8 @@
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
+import android.app.AlertDialog;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.os.Bundle;
 import android.view.LayoutInflater;
@@ -53,9 +55,19 @@
         // getFriendsの通信が呼び出されて、フレンドの一覧をfriendsDatasetに格納し、Adapterにセットする
         FriendActivityAdapter adapter = new FriendActivityAdapter(friendsDataset) {
             @Override
-            void onItemClick(View view, int position, FriendDataModel friend) {
-                Toast.makeText(FriendActivity.this, friend.getName(), Toast.LENGTH_SHORT).show();
-//                friendViewModel.deleteFriend(myUid, friend.getId(), myToken);
+            void onDeleteClick(View view, int position, FriendDataModel friend) {
+                new AlertDialog.Builder(FriendActivity.this)
+                        .setTitle("フレンドから" + friend.getName() + "を削除しますか?")
+                        .setPositiveButton("OK", new DialogInterface.OnClickListener() {
+                            @Override
+                            public void onClick(DialogInterface dialog, int which) {
+                                Toast.makeText(FriendActivity.this, friend.getName(), Toast.LENGTH_SHORT).show();
+//                                friendViewModel.deleteFriend(myUid, friend.getId(), myToken);
+                            }
+                        })
+                        .setNegativeButton("キャンセル", null)
+                        .create()
+                        .show();
             }
         };
         friendViewModel.getFriends(myUid);  // 自身のフレンドの一覧を取得するメソッドを呼び出す
@@ -89,7 +101,7 @@
 
     // ----------- RecyclerView用の内部クラス ------------//
     // Adapter
-    public class FriendActivityAdapter extends RecyclerView.Adapter<FriendsViewHolder> {
+    abstract public class FriendActivityAdapter extends RecyclerView.Adapter<FriendsViewHolder> {
         private List<FriendDataModel> friendDatas;
 
         public FriendActivityAdapter(List<FriendDataModel> friendDatas) {
@@ -114,7 +126,7 @@
                 public void onClick(View v) {
                     int position = vh.getBindingAdapterPosition();
                     // 処理はonItemClick()に丸投げ
-                    onItemClick(v, position, friendDatas.get(position));
+                    onDeleteClick(v, position, friendDatas.get(position));
                 }
             });
 
@@ -132,9 +144,7 @@
             return friendDatas.size();
         }
 
-        void onItemClick(View view, int position, FriendDataModel friend) {
-            // このメソッドをActivity内でオーバーライドして、クリックイベントの処理を設定する
-        }
+        abstract void onDeleteClick(View view, int position, FriendDataModel friend);
     }
 
     // ViewHolder
diff --git a/app/src/main/res/layout/layout_friends_activity.xml b/app/src/main/res/layout/layout_friends_activity.xml
index d891315..7635bd4 100644
--- a/app/src/main/res/layout/layout_friends_activity.xml
+++ b/app/src/main/res/layout/layout_friends_activity.xml
@@ -25,4 +25,5 @@
         android:layout_height="wrap_content"
         android:layout_weight="1"
         android:text="削除" />
+
 </LinearLayout>
\ No newline at end of file