app/build.gradle

@@ -1,6 +1,7 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
+    id 'com.google.gms.google-services'
 }
 
 android {
@@ -58,6 +59,7 @@ dependencies {
     implementation 'androidx.compose.ui:ui-graphics'
     implementation 'androidx.compose.ui:ui-tooling-preview'
     implementation 'androidx.compose.material3:material3'
+    implementation 'com.google.firebase:firebase-firestore:24.4.1'
 
 
     testImplementation 'junit:junit:4.13.2'

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

@@ -1,34 +1,31 @@
 package com.example.childguard;
 
+import static android.content.ContentValues.TAG;
+
 import android.content.SharedPreferences;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Canvas;
-import android.graphics.Color;
-import android.graphics.Paint;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
 import android.os.Bundle;
-
-import androidx.core.content.res.ResourcesCompat;
-import androidx.fragment.app.Fragment;
-import androidx.fragment.app.FragmentManager;
-import androidx.fragment.app.FragmentTransaction;
-import androidx.print.PrintHelper;
-
-import android.util.AndroidRuntimeException;
+import android.preference.PreferenceManager;
 import android.util.Log;
 import android.view.LayoutInflater;
 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 com.google.zxing.BarcodeFormat;
-import com.google.zxing.WriterException;
-import com.journeyapps.barcodescanner.BarcodeEncoder;
+import androidx.annotation.NonNull;
+import androidx.core.content.res.ResourcesCompat;
+import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentManager;
+import androidx.fragment.app.FragmentTransaction;
+
+import com.google.android.gms.tasks.OnFailureListener;
+import com.google.android.gms.tasks.OnSuccessListener;
+import com.google.firebase.firestore.DocumentReference;
+import com.google.firebase.firestore.FirebaseFirestore;
+
+import java.util.HashMap;
+import java.util.Map;
 
 /**
  * A simple {@link Fragment} subclass.
@@ -37,6 +34,8 @@ import com.journeyapps.barcodescanner.BarcodeEncoder;
  */
 public class HomeFragment extends Fragment {
 
+    FirebaseFirestore db = FirebaseFirestore.getInstance();//Firebaseとの紐づけ
+
     // TODO: Rename parameter arguments, choose names that match
     // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
     private static final String ARG_PARAM1 = "param1";
@@ -80,20 +79,58 @@ public class HomeFragment extends Fragment {
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
+        //    Log.d("HomeFlagment_cnt", "aaaaa");
         // Inflate the layout for this fragment
-        View view=inflater.inflate(R.layout.fragment_home,container,false);
+        View view = inflater.inflate(R.layout.fragment_home, container, false);
         MainActivity activity = (MainActivity) getActivity();
+        //共有プリファレンス 全体の準備
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getActivity());
         //QRコード印刷の処理
-        Button bt1=view.findViewById(R.id.QRprinting);
+        Button bt1 = view.findViewById(R.id.QRprinting);
         bt1.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
-                replaceFragment(new QrPrintFragment());
+                //初回起動かを保存する変数
+                int i = Integer.parseInt(preferences.getString("kidoukaisuu", "1"));
+                //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
+                    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("born", valueBorn);
+                    //新しいドキュメントにIDを作って追加
+                    db.collection("users")
+                            .add(user)
+                            .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
+                                @Override
+                                public void onSuccess(DocumentReference documentReference) {
+                                    Log.d(TAG, "DocumentSnapshot added with ID: " + documentReference.getId());
+                                }
+                            })
+                            .addOnFailureListener(new OnFailureListener() {
+                                @Override
+                                public void onFailure(@NonNull Exception e) {//エラー処理
+                                    Log.w(TAG, "Error adding document", e);
+                                }
+
+                            });
+
+                }
+                SharedPreferences.Editor e = preferences.edit();
+                e.putString("kidoukiroku", "2");
+                e.apply();
+                replaceFragment(new QrPrintFragment());
+            }
         });
         //bluetooth設定ボタンの処理
-        Button bt2=view.findViewById(R.id.Bluetooth_setup);
+        Button bt2 = view.findViewById(R.id.Bluetooth_setup);
         bt2.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
@@ -108,11 +145,11 @@ public class HomeFragment extends Fragment {
         super.onResume();
         Log.d("HomeFragment", "onResume: called");
         TextView situationTextView = getView().findViewById(R.id.situation);
-        FrameLayout situation_bg=getView().findViewById(R.id.situation_bg);
-        updateInCarStatus(situationTextView,situation_bg);
+        FrameLayout situation_bg = getView().findViewById(R.id.situation_bg);
+        updateInCarStatus(situationTextView, situation_bg);
     }
 
-    public void updateInCarStatus(TextView situationTextView,FrameLayout situation_bg) {
+    public void updateInCarStatus(TextView situationTextView, FrameLayout situation_bg) {
         SharedPreferences sharedPreferences = getActivity().getSharedPreferences("default", 0);
 
         Log.d("HomeFragment", "updateInCarStatus: " + sharedPreferences.getBoolean("inCar", false));
@@ -125,8 +162,9 @@ public class HomeFragment extends Fragment {
         }
 
     }
+
     //画面遷移メソッド
-    private void replaceFragment(Fragment fragment){
+    private void replaceFragment(Fragment fragment) {
         // フラグメントマネージャーの取得
         FragmentManager manager = getParentFragmentManager(); // アクティビティではgetSupportFragmentManager()?
         // フラグメントトランザクションの開始

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

@@ -1,16 +0,0 @@
-package com.example.childguard;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-import android.content.SharedPreferences;
-import android.os.Bundle;
-import android.preference.PreferenceManager;
-import android.webkit.WebView;
-
-public class UrlPageActivity extends AppCompatActivity {
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.activity_url_page);
-    }
-}

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

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".UrlPageActivity">
-    <WebView
-        android:id="@+id/url_page"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        />
-
-</androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -1,4 +1,8 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    dependencies {
+        classpath 'com.google.gms:google-services:4.3.14'
+    }
+}// Top-level build file where you can add configuration options common to all sub-projects/modules.
 plugins {
     id 'com.android.application' version '8.0.2' apply false
     id 'com.android.library' version '8.0.2' apply false