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

@@ -3,6 +3,7 @@ package com.example.childguard;
 import static android.content.ContentValues.TAG;
 
 import android.content.SharedPreferences;
+import android.graphics.Bitmap;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
 import android.util.Log;
@@ -11,6 +12,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.FrameLayout;
+import android.widget.ImageView;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -34,7 +36,6 @@ import java.util.Map;
  * create an instance of this fragment.
  */
 public class HomeFragment extends Fragment {
-
     FirebaseFirestore db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
 
     // TODO: Rename parameter arguments, choose names that match
@@ -43,7 +44,7 @@ public class HomeFragment extends Fragment {
     private static final String ARG_PARAM2 = "param2";
 
     // TODO: Rename and change types of parameters
-    private String mParam1;
+    private String str_key;
     private String mParam2;
 
     public HomeFragment() {
@@ -72,7 +73,7 @@ public class HomeFragment extends Fragment {
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         if (getArguments() != null) {
-            mParam1 = getArguments().getString(ARG_PARAM1);
+            // mParam1 = getArguments().getString(ARG_PARAM1);
             mParam2 = getArguments().getString(ARG_PARAM2);
         }
     }
@@ -92,13 +93,17 @@ 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"));
                 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 (alreadySaved) {
+                //falseのときにFirebaseへの登録
+                if (!alreadySaved) {
                     Log.d("HomeFragment", "already printed");
+                   //画面遷移＆ID受け渡し
+                    Toast.makeText(getActivity(),"再印刷",Toast.LENGTH_SHORT).show();
+                    QrPrintFragment qrPrintFragment = new QrPrintFragment();
+                    replaceFragment(qrPrintFragment);
                     return;
                 } else Log.d("HomeFragment", "not printed yet"); // debug
 
@@ -118,12 +123,23 @@ public class HomeFragment extends Fragment {
                             @Override
                             public void onSuccess(DocumentReference documentReference) {
                                 //成功したら
+                                //documentReference.getId()でID取得
                                 Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
                                 SharedPreferences.Editor e = preferences.edit();
-                                e.putBoolean("alreadySaved", true);
+                                // キー"alreadySaved"の値をtrueにする
+                                e.putBoolean("alreadySaved", false);
+                                //確定処理
                                 e.apply();
-                                //画面遷移
-                                replaceFragment(new QrPrintFragment());
+                                //画面遷移＆ID受け渡し
+                                str_key = "" + documentReference.getId();
+                                Toast.makeText(getActivity(),"初回登録",Toast.LENGTH_SHORT).show();
+                                QrPrintFragment qrPrintFragment = new QrPrintFragment();
+                                Bundle bundle = new Bundle();
+                                bundle.putString("STR_KEY",str_key);
+                                //値を書き込む
+                                qrPrintFragment.setArguments(bundle);
+                                replaceFragment(qrPrintFragment);
+
                             }
                         })
                         .addOnFailureListener(new OnFailureListener() {
@@ -134,11 +150,7 @@ public class HomeFragment extends Fragment {
                             }
                         });
 
-//
-//                SharedPreferences.Editor e = preferences.edit();
-//                e.putString("kidoukiroku", "2");
-//                e.apply();
-                replaceFragment(new QrPrintFragment());
+
             }
         });
         //bluetooth設定ボタンの処理
@@ -160,7 +172,6 @@ public class HomeFragment extends Fragment {
         FrameLayout situation_bg = getView().findViewById(R.id.situation_bg);
         updateInCarStatus(situationTextView, situation_bg);
     }
-
     public void updateInCarStatus(TextView situationTextView, FrameLayout situation_bg) {
         SharedPreferences sharedPreferences = getActivity().getSharedPreferences("default", 0);
 

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

@@ -15,19 +15,19 @@ public class QR extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState){
         super.onCreate(savedInstanceState);
         setContentView(R.layout.fragment_qr);
-
-        findViewById(R.id.camera).setOnClickListener(
-                v -> {
-                    if(get_on.equals(tv.getText().toString())){
-                        tv.setText(get_off);
-                        findViewById(R.id.situation_bg).setBackgroundColor(Color.parseColor("#dcdcdc"));
-                    }
-                    else {
-                        tv.setText(get_on);
-                        findViewById(R.id.situation_bg).setBackgroundColor(Color.parseColor("#ff4500"));
-                    }
-                }
-        );
+        //多分いらないコード
+//        findViewById(R.id.camera).setOnClickListener(
+//                v -> {
+//                    if(get_on.equals(tv.getText().toString())){
+//                        tv.setText(get_off);
+//                        findViewById(R.id.situation_bg).setBackgroundColor(Color.parseColor("#dcdcdc"));
+//                    }
+//                    else {
+//                        tv.setText(get_on);
+//                        findViewById(R.id.situation_bg).setBackgroundColor(Color.parseColor("#ff4500"));
+//                    }
+//                }
+//        );
     }
 
 }

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

@@ -97,13 +97,10 @@ public class QRFragment extends Fragment {
         // Inflate the layout for this fragment
         View view = inflater.inflate(R.layout.fragment_qr, container, false);
 
-        Button cameraButton = view.findViewById(R.id.camera);
 
-        cameraButton.setOnClickListener(v -> {
             Log.d("QRFragment", "onClick: called");
             //QRリーダ起動
             fragmentLauncher.launch(new ScanOptions());
-        });
 
         return view;
     }

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

@@ -1,5 +1,6 @@
 package com.example.childguard;
 
+import android.content.SharedPreferences;
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
 import android.graphics.Canvas;
@@ -10,6 +11,7 @@ import android.os.Bundle;
 import androidx.fragment.app.Fragment;
 import androidx.print.PrintHelper;
 
+import android.preference.PreferenceManager;
 import android.util.AndroidRuntimeException;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -59,7 +61,7 @@ public class QrPrintFragment extends Fragment {
     }
 
     @Override
-    public void onCreate(Bundle savedInstanceState) {
+    public void onCreate (Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         if (getArguments() != null) {
             mParam1 = getArguments().getString(ARG_PARAM1);
@@ -68,18 +70,34 @@ public class QrPrintFragment extends Fragment {
         }
     }
 
-    @Override
+   // @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
+        //共有プリファレンス 全体の準備
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
+        //User毎のドメインを保存する
+        String IdPref=preferences.getString("ID",null);
         // Inflate the layout for this fragment
-        View view=inflater.inflate(R.layout.fragment_qr_print, container, false);
-
+        View view=inflater.inflate(R.layout.fragment_qr_print, container, false);;
         //固定のドメイン
         String KoteiURL = "https://practicefirestore1-8808c.web.app/?id=";
+        //すべてのドメイン
+        String AllURL;
+        //IdPrefにの値が初期値の場合
+        if(IdPref==null) {
             //User毎のドメイン
-        String userURL="YKjFsZgJBlZmcyvdZ3Ap";
+            String userURL = getArguments().getString("STR_KEY");
+            //キー"ID"の値をuserURLの値にする
+            SharedPreferences.Editor e = preferences.edit();
+            e.putString("ID", userURL);
+            //確定処理
+            e.apply();
             //二つのドメインを合成する
-        String AllURL=KoteiURL+userURL;
+            AllURL=KoteiURL+userURL;
+        }else{
+            //二つのドメインを合成する
+            AllURL=KoteiURL+IdPref;
+        }
 
         int size = 2500;
         ImageView imageViewQrCode;
@@ -96,6 +114,7 @@ public class QrPrintFragment extends Fragment {
             throw new AndroidRuntimeException("Barcode Error.", e);
         }
         //    画像合成の準備
+        //    ここのエラーは直すと何故か動かなくなる。このままで動くので放置
         Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.a_group_qr_sos);
         Bitmap bitmap1 = ((BitmapDrawable) imageViewQrCode.getDrawable()).getBitmap();
         int width = bitmap.getWidth(); // 元ファイルの幅取得

app/src/main/res/layout/fragment_qr.xml

@@ -5,13 +5,6 @@
     android:layout_height="match_parent"
     tools:context=".QRFragment">
 
-    <!-- TODO: Update blank fragment layout -->
-    <Button
-        android:id="@+id/camera"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"
-        />
 
 
 </FrameLayout>