diff --git a/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java b/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java
index d62ef21..d6c8dda 100644
--- a/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java
+++ b/app/src/main/java/com/example/cosmosclient/views/JoinGroupByIDActivity.java
@@ -67,21 +67,30 @@
                     @Override
                     public void onResponse(Call<JoinGroupResponse> call, Response<JoinGroupResponse> response) {
                         if (response.isSuccessful()) {
-//                            JoinGroupResponse result = response.body();
                             //成功時
-                            JoinGroupResponse result = response.body();
-                            Group g = new Group(result.gId,result.uri,result.name,uId);
+                            final JoinGroupResponse result = response.body();
+                            //追加ボタンに関する記述
+                            test.setText(result.name);
+                            Button AddBtn = (Button)findViewById(R.id.Addbutton);
+                            AddBtn.setVisibility(View.VISIBLE);
 
-                            //app/CosmosにgIdを保存
-                            Cosmos app = (Cosmos)getApplication();
-                            app.setCurrentGroup(g);
+                            AddBtn.setOnClickListener(new View.OnClickListener() {
+                                @Override
+                                public void onClick(View v) {
+                                    Group g = new Group(result.gId, result.uri, result.name, uId);
 
-                            Intent intent = new Intent(getApplication(), RequestListActivity.class);
-                            startActivity(intent);
-                            //ここで成功の処理を記述
-                            finish();
+                                    //app/CosmosにgIdを保存
+                                    Cosmos app = (Cosmos) getApplication();
+                                    app.setCurrentGroup(g);
 
-                        } else {
+                                    Intent intent = new Intent(getApplication(), RequestListActivity.class);
+                                    startActivity(intent);
+                                    finish();
+
+                                }
+                            });
+
+                        }else {
                             //onFailureでキャッチできないエラー用
                             //ここでエラーの処理を記述
                             test.setText("失敗");