app/src/main/AndroidManifest.xml

@@ -34,7 +34,6 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
-        <activity android:name=".UrlPageActivity" />
     </application>
 
 </manifest>

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

@@ -1,7 +1,12 @@
 package com.example.childguard;
 
 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;
 
@@ -9,15 +14,22 @@ 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.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;
+
 /**
  * A simple {@link Fragment} subclass.
  * Use the {@link HomeFragment#newInstance} factory method to
@@ -69,12 +81,20 @@ public class HomeFragment extends Fragment {
     public View onCreateView(LayoutInflater inflater, ViewGroup container,
                              Bundle savedInstanceState) {
         // Inflate the layout for this fragment
-        //bluetooth設定ボタンの処理
         View view=inflater.inflate(R.layout.fragment_home,container,false);
         MainActivity activity = (MainActivity) getActivity();
-
+        //QRコード印刷の処理
-        Button bt1=view.findViewById(R.id.Bluetooth_setup);
+        Button bt1=view.findViewById(R.id.QRprinting);
         bt1.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                replaceFragment(new QrPrintFragment());
+
+           }
+        });
+        //bluetooth設定ボタンの処理
+        Button bt2=view.findViewById(R.id.Bluetooth_setup);
+        bt2.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View v) {
                 replaceFragment(new bluetooth_setupFragment());

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

@@ -74,22 +74,16 @@ public class QRFragment extends Fragment {
 
     }
 
-    //FragmentからActivityへデータの受け渡しをするためのInterface
-//    public interface OnDataPass{
-//        void onDataPass(String urlPass);
-//    }
     private final ActivityResultLauncher<ScanOptions> fragmentLauncher = registerForActivityResult(new ScanContract(),
             result -> {
-                    //QRコードからデータを読み取れたかの確認
+                    //result.getContents()でURLを入手
-                if(result.getContents() == null) {
+                    //読み取ったQRコードがChiled Guard用サイトのドメインを含むかの判定
-                    Toast.makeText(getContext(), "Cancelled from fragment", Toast.LENGTH_LONG).show();
+                if(!((result.getContents()).contains("https://practicefirestore1-8808c.web.app/"))) {
+                    Toast.makeText(getContext(), "Chiled Guardに対応するQRコードではありません", Toast.LENGTH_LONG).show();
                 } else {
-//                    dataPass.onDataPass(result.getContents());
+                    //URLの表示
-                    //画面遷移
                     Toast.makeText(getContext(), result.getContents(), Toast.LENGTH_SHORT).show();
-//                    Intent intent=new Intent(getActivity(),UrlPageActivity.class);
+                    //ブラウザを起動し、URL先のサイトを開く
-//                    startActivity(intent);
-
                     CustomTabsIntent.Builder builder = new CustomTabsIntent.Builder();
                     CustomTabsIntent customTabsIntent = builder.build();
                     customTabsIntent.launchUrl(requireContext(), Uri.parse(result.getContents()));

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

@@ -0,0 +1,119 @@
+package com.example.childguard;
+
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.graphics.drawable.BitmapDrawable;
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+import androidx.print.PrintHelper;
+
+import android.util.AndroidRuntimeException;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.WriterException;
+import com.journeyapps.barcodescanner.BarcodeEncoder;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link QrPrintFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class QrPrintFragment extends Fragment {
+
+    // TODO: Rename parameter arguments, choose names that match
+    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    // TODO: Rename and change types of parameters
+    private String mParam1;
+    private String mParam2;
+
+    public QrPrintFragment() {
+        // Required empty public constructor
+    }
+
+    /**
+     * Use this factory method to create a new instance of
+     * this fragment using the provided parameters.
+     *
+     * @param param1 Parameter 1.
+     * @param param2 Parameter 2.
+     * @return A new instance of fragment QrPrintFragment.
+     */
+    // TODO: Rename and change types and number of parameters
+    public static QrPrintFragment newInstance(String param1, String param2) {
+        QrPrintFragment fragment = new QrPrintFragment();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        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=";
+        //User毎のドメイン
+        String userURL="YKjFsZgJBlZmcyvdZ3Ap";
+        //二つのドメインを合成する
+        String AllURL=KoteiURL+userURL;
+
+        int size = 2500;
+        ImageView imageViewQrCode;
+        Bitmap QRGazou;
+        try {
+            //QRコード生成
+            BarcodeEncoder barcodeEncoder = new BarcodeEncoder();
+            Bitmap bitmapqr = barcodeEncoder.encodeBitmap(AllURL, BarcodeFormat.QR_CODE, size, size);
+            imageViewQrCode = (ImageView) view.findViewById(R.id.qr_view);
+            imageViewQrCode.setTranslationX(1000);
+            imageViewQrCode.setTranslationY(1000);
+            imageViewQrCode.setImageBitmap(bitmapqr);
+        } catch (WriterException e) {
+            throw new AndroidRuntimeException("Barcode Error.", e);
+        }
+        //    画像合成の準備
+        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
+        int height = bitmap.getHeight(); // 元ファイルの高さ取得
+        QRGazou = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
+        //Canvasの準備
+        Canvas canvas = new Canvas(QRGazou);
+        //画像のサイズの調整
+        int disWidth = (width - bitmap1.getWidth()) / 2;
+        int disHeight = (int) ((height - bitmap1.getHeight()) / 1.3);
+        canvas.drawBitmap(bitmap, 0, 0, (Paint) null); // image, x座標, y座標, Paintインスタンス
+        canvas.drawBitmap(bitmap1, disWidth, disHeight, (Paint) null); // 画像合成
+        //Androidからプリンターへ印刷指示を出すサポートライブラリ
+        PrintHelper printHelper = new PrintHelper(getActivity());
+        printHelper.setColorMode(PrintHelper.COLOR_MODE_COLOR);
+        printHelper.setScaleMode(PrintHelper.SCALE_MODE_FIT);
+        printHelper.printBitmap("job_name", QRGazou);
+
+        return view;
+    }
+}

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

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout 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"
+    android:orientation="vertical"
+    tools:context=".QrPrintFragment"
+    android:weightSum="1">
+
+
+    <!-- TODO: Update blank fragment layout -->
+    <ImageView
+        android:id="@+id/image"
+        android:layout_width="match_parent"
+        android:layout_height="581dp"
+        android:layout_weight="1"/>
+
+    <ImageView
+        android:id="@+id/imageView"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:srcCompat="@drawable/a_group_qr_sos"
+        android:layout_weight="0"/>
+
+    <ImageView
+        android:id="@+id/qr_view"
+        android:layout_width="0dp"
+        android:layout_height="0dp"
+        app:srcCompat="@drawable/ic_launcher_foreground"
+        android:layout_weight="0"/>
+
+</LinearLayout>