app/src/main/java/com/example/childguard/HomeFragment.java

@@ -12,6 +12,7 @@ import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.FrameLayout;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.core.content.res.ResourcesCompat;
@@ -91,19 +92,24 @@ public class HomeFragment extends Fragment {
             @Override
             public void onClick(View v) {
                 //初回起動かを保存する変数
-                int i = Integer.parseInt(preferences.getString("kidoukaisuu", "1"));
+//                int i = Integer.parseInt(preferences.getString("kidoukaisuu", "1"));
+                boolean alreadySaved = preferences.getBoolean("alreadySaved", false);
                 //ボタン変数の宣言
                 Button parent = view.findViewById(R.id.QRprinting);
                 Button born = view.findViewById(R.id.QRprinting);
-                if (i == 1) {//QRコード印刷を初めて押したときにFireBaseへの登録を行う
-                    String QRYomitorisya = parent.getText().toString();//変数に文字列を代入
+                if (alreadySaved) {
+                    Log.d("HomeFragment", "already printed");
+                    return;
+                } else Log.d("HomeFragment", "not printed yet"); // debug
+
+                String valueParent = parent.getText().toString();//変数に文字列を代入
                 String valueBorn = born.getText().toString();//変数に文字列を代入
                 Map<String, String> user = new HashMap<>();//mapの宣言
 
                 Log.d("HomeFragment", "onClick is called");
 
                 //mapに入れる
-                    user.put("parent", QRYomitorisya);
+                user.put("parent", valueParent);
                 user.put("born", valueBorn);
                 //新しいドキュメントにIDを作って追加
                 db.collection("users")
@@ -111,21 +117,27 @@ public class HomeFragment extends Fragment {
                         .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
                             @Override
                             public void onSuccess(DocumentReference documentReference) {
+                                //成功したら
                                 Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
+                                SharedPreferences.Editor e = preferences.edit();
+                                e.putBoolean("alreadySaved", true);
+                                e.apply();
+                                //画面遷移
+                                replaceFragment(new QrPrintFragment());
                             }
                         })
                         .addOnFailureListener(new OnFailureListener() {
                             @Override
-                                public void onFailure(@NonNull Exception e) {//エラー処理
+                            public void onFailure(@NonNull Exception e) {
+                                //失敗したら
                                 Log.w(TAG, "Error adding document", e);
                             }
-
                         });
 
-                }
-                SharedPreferences.Editor e = preferences.edit();
-                e.putString("kidoukiroku", "2");
-                e.apply();
+//
+//                SharedPreferences.Editor e = preferences.edit();
+//                e.putString("kidoukiroku", "2");
+//                e.apply();
                 replaceFragment(new QrPrintFragment());
             }
         });