.idea/kotlinc.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="KotlinJpsPluginSettings">
-    <option name="version" value="1.7.20" />
-  </component>
-</project>

.idea/misc.xml

@@ -1,6 +1,6 @@
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/build.gradle

@@ -1,6 +1,5 @@
 plugins {
     id 'com.android.application'
-    id 'org.jetbrains.kotlin.android'
 }
 
 android {
@@ -15,9 +14,6 @@ android {
         versionName "1.0"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
-        vectorDrawables {
-            useSupportLibrary true
-        }
     }
 
     buildTypes {
@@ -30,20 +26,6 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
-    kotlinOptions {
-        jvmTarget = '1.8'
-    }
-    buildFeatures {
-        compose true
-    }
-    composeOptions {
-        kotlinCompilerExtensionVersion '1.3.2'
-    }
-    packagingOptions {
-        resources {
-            excludes += '/META-INF/{AL2.0,LGPL2.1}'
-        }
-    }
 }
 
 dependencies {
@@ -51,20 +33,9 @@ dependencies {
     implementation 'androidx.appcompat:appcompat:1.6.1'
     implementation 'com.google.android.material:material:1.5.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
-    implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.3.1'
-    implementation 'androidx.activity:activity-compose:1.5.1'
-    implementation platform('androidx.compose:compose-bom:2022.10.00')
-    implementation 'androidx.compose.ui:ui'
-    implementation 'androidx.compose.ui:ui-graphics'
-    implementation 'androidx.compose.ui:ui-tooling-preview'
-    implementation 'androidx.compose.material3:material3'
 
 
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'
-    androidTestImplementation platform('androidx.compose:compose-bom:2022.10.00')
-    androidTestImplementation 'androidx.compose.ui:ui-test-junit4'
-    debugImplementation 'androidx.compose.ui:ui-tooling'
-    debugImplementation 'androidx.compose.ui:ui-test-manifest'
 }

app/src/main/AndroidManifest.xml

@@ -2,12 +2,6 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
-    <uses-permission android:name="android.permission.BLUETOOTH" />
-    <uses-permission android:name="android.permission.BLUETOOTH_ADMIN" />
-    <uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
-    <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
-    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
-    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <application
@@ -20,11 +14,6 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.ChildGuard"
         tools:targetApi="31">
-        <activity
-            android:name=".First_Start"
-            android:exported="false"
-            android:label="@string/title_activity_first_start"
-            android:theme="@style/Theme.ChildGuard" />
         <activity
             android:name=".MainActivity"
             android:exported="true">

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

@@ -1,14 +0,0 @@
-package com.example.childguard;
-
-import android.os.Bundle;
-
-import androidx.appcompat.app.AppCompatActivity;
-
-public class First_Start extends AppCompatActivity {
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.first_start);
-
-    }
-
-}

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

@@ -7,14 +7,11 @@ 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 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.TextView;
 
@@ -69,18 +66,7 @@ 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
+        return inflater.inflate(R.layout.fragment_home, container, false);
-        View view=inflater.inflate(R.layout.fragment_home,container,false);
-        MainActivity activity = (MainActivity) getActivity();
-
-        Button bt1=view.findViewById(R.id.Bluetooth_setup);
-        bt1.setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                replaceFragment(new bluetooth_setupFragment());
-            }
-        });
-        return view;
     }
 
     @Override
@@ -103,19 +89,5 @@ public class HomeFragment extends Fragment {
             situationTextView.setText("\n乗車状態");
             situation_bg.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.frame_style_orange, null));
         }
-
-    }
-    //画面遷移メソッド
-    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
-        FragmentTransaction transaction = manager.beginTransaction();
-        // レイアウトをfragmentに置き換え（追加）
-        transaction.replace(R.id.fragmentContainerView, fragment);
-        // 置き換えのトランザクションをバックスタックに保存する
-        transaction.addToBackStack(null);
-        // フラグメントトランザクションをコミット
-        transaction.commit();
     }
 }

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

@@ -1,6 +1,5 @@
 package com.example.childguard;
 
-import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.app.ActivityCompat;
 import androidx.core.app.NotificationCompat;
@@ -8,8 +7,6 @@ import androidx.core.app.NotificationManagerCompat;
 
 import android.app.NotificationChannel;
 import android.app.NotificationManager;
-import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothManager;
 import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
@@ -17,20 +14,12 @@ import android.os.Vibrator;
 
 import com.google.android.material.bottomnavigation.BottomNavigationView;
 
-import java.util.Random;
-import java.util.UUID;
-
 public class MainActivity extends AppCompatActivity {
-
-    BluetoothManager bluetoothManager;
-    BluetoothAdapter bluetoothAdapter;
-
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
 
-
         //通知のやつ↓
         int importance = NotificationManager.IMPORTANCE_DEFAULT;
 
@@ -87,12 +76,5 @@ public class MainActivity extends AppCompatActivity {
             return;
         }
         notificationManager.notify(R.string.app_name, builder.build());
-
-
-    }
-    //Bluetooth_setupの戻るボタン
-    public void setupBackButton(boolean enableBackButton){
-        ActionBar actionBar = getSupportActionBar();
-        actionBar.setDisplayHomeAsUpEnabled(enableBackButton);
     }
 }

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

@@ -1,57 +0,0 @@
-package com.example.childguard;
-
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.TextView;
-import android.widget.Toast;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import java.util.ArrayList;
-
-public class RecyclerAdapter extends RecyclerView.Adapter<RecyclerAdapter.ItemViewHolder> {
-
-    ArrayList<String[]> deviceList;
-
-    // Constructor
-    public RecyclerAdapter(ArrayList<String[]> deviceList) {
-        // Init
-        Log.d("RecyclerAdapter", "Constructor called");
-        this.deviceList = deviceList;
-    }
-
-    @NonNull
-    @Override
-    public RecyclerAdapter.ItemViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        LayoutInflater inflater = LayoutInflater.from(parent.getContext());
-        View itemView = inflater.inflate(R.layout.recycler_row, parent, false);
-        return new ItemViewHolder(itemView);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull ItemViewHolder holder, int position) {
-        holder.textView.setText(deviceList.get(position)[0]);
-        holder.textView.setOnClickListener( v -> {
-            Toast.makeText(v.getContext(), deviceList.get(position)[1], Toast.LENGTH_SHORT).show();
-        });
-    }
-
-    @Override
-    public int getItemCount() {
-        return deviceList.size();
-    }
-
-    static class ItemViewHolder extends RecyclerView.ViewHolder {
-        TextView textView;
-
-        public ItemViewHolder(@NonNull View itemView) {
-            super(itemView);
-            textView = itemView.findViewById(R.id.textView1);
-        }
-    }
-
-}
-

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

@@ -1,147 +0,0 @@
-package com.example.childguard;
-
-import android.app.Activity;
-import android.bluetooth.BluetoothAdapter;
-import android.bluetooth.BluetoothDevice;
-import android.bluetooth.BluetoothManager;
-import android.content.Context;
-import android.content.pm.PackageManager;
-import android.os.Bundle;
-
-import androidx.core.app.ActivityCompat;
-import androidx.core.app.NotificationCompat;
-import androidx.fragment.app.Fragment;
-import androidx.recyclerview.widget.DividerItemDecoration;
-import androidx.recyclerview.widget.LinearLayoutManager;
-import androidx.recyclerview.widget.RecyclerView;
-
-import android.util.Log;
-import android.view.LayoutInflater;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-
-import java.util.ArrayList;
-import java.util.Objects;
-import java.util.Set;
-
-/**
- * A simple {@link Fragment} subclass.
- * Use the {@link bluetooth_setupFragment#newInstance} factory method to
- * create an instance of this fragment.
- */
-public class bluetooth_setupFragment 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 bluetooth_setupFragment() {
-        // 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 bluetooth_setupFragment.
-     */
-    // TODO: Rename and change types and number of parameters
-    public static bluetooth_setupFragment newInstance(String param1, String param2) {
-        bluetooth_setupFragment fragment = new bluetooth_setupFragment();
-        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) {
-        View view = inflater.inflate(R.layout.fragment_bluetooth_setup, container, false);
-
-        // init
-        BluetoothManager bluetoothManager = requireActivity().getSystemService(BluetoothManager.class);
-        BluetoothAdapter bluetoothAdapter = bluetoothManager.getAdapter();
-
-        if (bluetoothAdapter == null) {
-            // Device doesn't support Bluetooth
-        }
-
-
-        if (ActivityCompat.checkSelfPermission(requireActivity().getApplicationContext(), android.Manifest.permission.BLUETOOTH_CONNECT) != PackageManager.PERMISSION_GRANTED) {
-            // TODO: Consider calling
-            //    ActivityCompat#requestPermissions
-            // here to request the missing permissions, and then overriding
-            //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
-            //                                          int[] grantResults)
-            // to handle the case where the user grants the permission. See the documentation
-            // for ActivityCompat#requestPermissions for more details.
-            return view;
-        }
-        Set<BluetoothDevice> pairedDevices = bluetoothAdapter.getBondedDevices();
-
-        RecyclerView recyclerView = view.findViewById(R.id.recyclerView1);
-        //RecyclerViewのサイズを固定
-        recyclerView.setHasFixedSize(true);
-
-        //RecyclerViewに区切り線を入れる
-//        RecyclerView.ItemDecoration itemDecoration =
-//                new DividerItemDecoration(getContext() ,DividerItemDecoration.VERTICAL);
-//        recyclerView.addItemDecoration(itemDecoration);
-
-        //レイアウトマネージャを設
-        RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getContext());
-        recyclerView.setLayoutManager(layoutManager);
-
-        //①リスト構造(String型の可変長の配列)を宣言
-        ArrayList<String[]> arrayList = new ArrayList<>();
-
-        if (pairedDevices.size() > 0) {
-
-            // There are paired devices. Get the name and address of each paired device.
-            for (BluetoothDevice device : pairedDevices) {
-
-
-
-                String[] deviceInfo = new String[2];
-                deviceInfo[0] = device.getName();
-                deviceInfo[1] = device.getAddress(); // MAC address
-
-                Log.d("a", deviceInfo[0]);
-                arrayList.add(deviceInfo);
-            }
-            for (String[] s : arrayList) {
-                Log.d("b", s[0]);
-            }
-            Log.d(" ", String.valueOf(arrayList.size()));
-            RecyclerAdapter adapter = new RecyclerAdapter(arrayList);
-
-            //④RecyclerViewとAdapterの結び付け
-            recyclerView.setAdapter(adapter);
-        }
-
-        return view;
-
-    }
-
-}

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

@@ -3,7 +3,6 @@
 <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:id="@+id/activityMain"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
@@ -16,7 +15,7 @@
         android:name="com.example.childguard.HomeFragment"
         android:layout_width="0dp"
         android:layout_height="0dp"
-        app:layout_constraintBottom_toTopOf="@id/nav_view"
+        app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />

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

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/frameLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    tools:context=".First_Start"
-    >
-    <TextView
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:text="一覧から車のBluetoothを選択してください"
-
-        />
-
-</LinearLayout>

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

@@ -1,26 +0,0 @@
-<?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:id="@+id/Bluetooth_setup"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    android:orientation="vertical"
-    tools:context=".bluetooth_setupFragment">
-
-
-    <!-- TODO: Update blank fragment layout -->
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/recyclerView1"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:scrollbars="vertical"/>
-
-    <TextView
-        android:id="@+id/click_device"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-
-        />
-
-</LinearLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<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:id="@+id/frameLayout"
@@ -7,128 +7,90 @@
     android:layout_height="match_parent"
     android:orientation="vertical"
     tools:context=".HomeFragment">
+    <FrameLayout
+        android:id="@+id/situation_bg"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@drawable/frame_style"
+        android:layout_marginTop="30dp"
+        android:layout_marginLeft="20dp"
+        android:layout_marginRight="20dp"
+        >
 
-
+        <TextView
-    <ScrollView
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
-
-        <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="vertical" >
+            android:layout_marginTop="20dp"
-            <FrameLayout
+            android:text="現在の状態"
-                android:id="@+id/situation_bg"
+            android:textSize="25dp"
-                android:layout_width="match_parent"
+            android:textColor="@color/black"
-                android:layout_height="wrap_content"
+            android:textAlignment="center"/>
-                android:layout_marginLeft="20dp"
+        <TextView
-                android:layout_marginTop="30dp"
+            android:id="@+id/situation"
-                android:layout_marginRight="20dp"
+            android:layout_width="match_parent"
-                android:background="@drawable/frame_style">
+            android:layout_height="200dp"
+            android:layout_marginTop="10dp"
+            android:text="\n降車状態"
+            android:textSize="55dp"
+            android:textColor="@color/black"
+            android:textAlignment="center"
+            />
 
-                <TextView
+    </FrameLayout>
-                    android:layout_width="match_parent"
+    <FrameLayout
-                    android:layout_height="wrap_content"
+        android:layout_width="match_parent"
-                    android:layout_marginTop="20dp"
+        android:layout_height="wrap_content"
-                    android:text="現在の状態"
+        android:background="@drawable/frame_style"
-                    android:textAlignment="center"
+        android:layout_marginTop="30dp"
-                    android:textColor="@color/black"
+        android:layout_marginLeft="20dp"
-                    android:textSize="25dp" />
+        android:layout_marginRight="20dp"
+        >
 
-                <TextView
+        <TextView
-                    android:id="@+id/situation"
+            android:layout_width="match_parent"
-                    android:layout_width="match_parent"
+            android:layout_height="wrap_content"
-                    android:layout_height="200dp"
+            android:layout_marginTop="5dp"
-                    android:layout_marginTop="10dp"
+            android:text="切断中"
-                    android:text="\n降車状態"
+            android:textSize="30dp"
-                    android:textAlignment="center"
+            android:textColor="@color/black"
-                    android:textColor="@color/black"
+            android:textAlignment="center"/>
-                    android:textSize="55dp" />
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="100dp"
+            android:layout_marginTop="50dp"
+            android:src="@drawable/bluetooth_drive_fill0_wght400_grad0_opsz24"
+            android:textAlignment="center"
+            />
+        <ImageView
+            android:layout_width="match_parent"
+            android:layout_height="100dp"
+            android:layout_marginTop="50dp"
+            android:src="@drawable/close_fill0_wght400_grad0_opsz24"
+            android:textAlignment="center"
+            />
 
-            </FrameLayout>
+    </FrameLayout>
 
-            <FrameLayout
+    <FrameLayout
-                android:layout_width="match_parent"
+        android:layout_width="match_parent"
-                android:layout_height="wrap_content"
+        android:layout_height="match_parent"
-                android:layout_marginLeft="20dp"
+        android:layout_marginLeft="20dp"
-                android:layout_marginTop="30dp"
+        android:layout_marginRight="20dp"
-                android:layout_marginRight="20dp"
+        android:background="@drawable/frame_style_button">
-                android:background="@drawable/frame_style">
-
-                <TextView
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content"
-                    android:layout_marginTop="5dp"
-                    android:text="切断中"
-                    android:textAlignment="center"
-                    android:textColor="@color/black"
-                    android:textSize="30dp" />
-
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="100dp"
-                    android:layout_marginTop="50dp"
-                    android:src="@drawable/bluetooth_drive_fill0_wght400_grad0_opsz24"
-                    android:textAlignment="center" />
-
-                <ImageView
-                    android:layout_width="match_parent"
-                    android:layout_height="100dp"
-                    android:layout_marginTop="50dp"
-                    android:src="@drawable/close_fill0_wght400_grad0_opsz24"
-                    android:textAlignment="center" />
-
-            </FrameLayout>
-
-            <Button
-                android:id="@+id/QRprinting"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginTop="70dp"
-                android:backgroundTint="#778899"
-                android:text="QRコード印刷"
-                android:textColor="@color/white"
-                android:textSize="40dp" />
-
-            <Button
-                android:id="@+id/Bluetooth_setup"
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:backgroundTint="#778899"
-                android:text="Bluetooth設定"
-                android:textColor="@color/white"
-                android:textSize="40dp" />
-
-            <FrameLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-                android:layout_marginLeft="20dp"
-                android:layout_marginRight="20dp"
-                android:background="@drawable/frame_style_button">
-
-
-            </FrameLayout>
-
-            <FrameLayout
-                android:layout_width="match_parent"
-                android:layout_height="wrap_content"
-
-                android:layout_marginLeft="20dp"
-                android:layout_marginRight="20dp"
-                android:background="@drawable/frame_style_button">
-
-
-                <!--<ImageView
-                    android:layout_width="wrap_content"
-                    android:layout_height="wrap_content"
-                    android:src="@drawable/ss"/>-->
-                <!--android:layout_gravity="center"-->
-            </FrameLayout>
-        </LinearLayout>
-    </ScrollView>
-</androidx.constraintlayout.widget.ConstraintLayout>
 
+        <Button
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:layout_marginLeft="20dp"
+            android:layout_marginRight="20dp"
+            android:backgroundTint="#778899"
+            android:text="QRコード印刷"
+            android:textColor="@color/white"
+            android:textSize="40dp" />
+        <!--<ImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:src="@drawable/ss"/>-->
+    </FrameLayout>
+</LinearLayout>

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

@@ -13,5 +13,4 @@
         android:layout_gravity="center"
         />
 
-
 </FrameLayout>

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

@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content">
-    <TextView
-        android:id="@+id/textView1"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:textSize="30sp"/>
-
-</LinearLayout>

app/src/main/res/values/strings.xml

@@ -2,5 +2,4 @@
     <string name="app_name">Child Guard</string>
     <!-- TODO: Remove or change this placeholder text -->
     <string name="hello_blank_fragment">Hello blank fragment</string>
-    <string name="title_activity_first_start">First_Start</string>
 </resources>

build.gradle

@@ -2,5 +2,4 @@
 plugins {
     id 'com.android.application' version '8.0.2' apply false
     id 'com.android.library' version '8.0.2' apply false
-    id 'org.jetbrains.kotlin.android' version '1.7.20' apply false
 }