From 67d0d76a841ac93237b633525e3daed5c7b083fa Mon Sep 17 00:00:00 2001
From: kimjusang <jusang3057@gmail.com>
Date: Mon, 2 Dec 2024 03:00:45 +0900
Subject: [PATCH 1/4] assign6

2024-12-02
---
 .idea/workspace.xml                           | 50 +++++------
 .../com/example/assignment02/CountFragment.kt | 87 -------------------
 .../com/example/assignment02/MainActivity.kt  | 66 ++++++++++++--
 .../com/example/assignment02/NameAdapter.kt   | 32 +++++++
 .../example/assignment02/RandomFragment.kt    | 54 ------------
 app/src/main/res/drawable/round_button.xml    |  5 ++
 app/src/main/res/layout/activity_main.xml     | 43 +++++++--
 app/src/main/res/layout/adapter_name.xml      | 16 ++++
 app/src/main/res/layout/fragment_count.xml    | 52 -----------
 app/src/main/res/layout/fragment_random.xml   | 21 -----
 app/src/main/res/values/colors.xml            |  1 +
 11 files changed, 176 insertions(+), 251 deletions(-)
 delete mode 100644 app/src/main/java/com/example/assignment02/CountFragment.kt
 create mode 100644 app/src/main/java/com/example/assignment02/NameAdapter.kt
 delete mode 100644 app/src/main/java/com/example/assignment02/RandomFragment.kt
 create mode 100644 app/src/main/res/drawable/round_button.xml
 create mode 100644 app/src/main/res/layout/adapter_name.xml
 delete mode 100644 app/src/main/res/layout/fragment_count.xml
 delete mode 100644 app/src/main/res/layout/fragment_random.xml

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 8aaa2bb..198b04f 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -10,17 +10,11 @@
           <theme>@style/Theme.Assignment02</theme>
         </config>
       </layout>
-      <layout url="file://$PROJECT_DIR$/app/src/main/res/layout/fragment_main.xml">
+      <layout url="file://$PROJECT_DIR$/app/src/main/res/layout/adapter_name.xml">
         <config>
           <theme>@style/Theme.Assignment02</theme>
         </config>
       </layout>
-      <layout url="file://$PROJECT_DIR$/app/src/main/res/layout/fragment_random.xml">
-        <config>
-          <state>portrait</state>
-          <theme>@style/Theme.Assignment02</theme>
-        </config>
-      </layout>
     </layouts>
   </component>
   <component name="AutoImportSettings">
@@ -28,14 +22,17 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="66610982-134f-47c4-a8b4-c3cdf03dc3f9" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainFrag.kt" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/RandomFrag.kt" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/app/src/main/res/layout/fragment_main.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/app/build.gradle.kts" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/NameAdapter.kt" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/app/src/main/res/drawable/round_button.xml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/app/src/main/res/layout/adapter_name.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/CountFragment.kt" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/RandomActivity.kt" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/RandomFragment.kt" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/activity_random.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/layout/fragment_random.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/fragment_count.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/fragment_random.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -66,8 +63,10 @@
   <component name="FileTemplateManagerImpl">
     <option name="RECENT_TEMPLATES">
       <list>
-        <option value="Kotlin Class" />
+        <option value="resourceFile" />
         <option value="Class" />
+        <option value="Kotlin Class" />
+        <option value="layoutResourceFile" />
       </list>
     </option>
   </component>
@@ -80,19 +79,18 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent"><![CDATA[{
-  "keyToString": {
-    "RunOnceActivity.OpenProjectViewOnStart": "true",
-    "RunOnceActivity.ShowReadmeOnStart": "true",
-    "RunOnceActivity.cidr.known.project.marker": "true",
-    "android.gradle.sync.needed": "true",
-    "cf.first.check.clang-format": "false",
-    "cidr.known.project.marker": "true",
-    "last_directory_selection": "C:/Users/Public/assignment02/app/src/main/java",
-    "last_opened_file_path": "C:/Users/Public/assignment02/app/src/main/res/layout",
-    "settings.editor.selected.configurable": "AndroidSdkUpdater"
+  <component name="PropertiesComponent">{
+  &quot;keyToString&quot;: {
+    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
+    &quot;RunOnceActivity.cidr.known.project.marker&quot;: &quot;true&quot;,
+    &quot;cf.first.check.clang-format&quot;: &quot;false&quot;,
+    &quot;cidr.known.project.marker&quot;: &quot;true&quot;,
+    &quot;last_directory_selection&quot;: &quot;C:/Users/Public/assignment02/app/src/main/java&quot;,
+    &quot;last_opened_file_path&quot;: &quot;C:/Users/Public/assignment02/app/src/main/res/layout&quot;,
+    &quot;settings.editor.selected.configurable&quot;: &quot;AndroidSdkUpdater&quot;
   }
-}]]></component>
+}</component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="C:\Users\Public\assignment02\app\src\main\res\layout" />
diff --git a/app/src/main/java/com/example/assignment02/CountFragment.kt b/app/src/main/java/com/example/assignment02/CountFragment.kt
deleted file mode 100644
index ee4e11d..0000000
--- a/app/src/main/java/com/example/assignment02/CountFragment.kt
+++ /dev/null
@@ -1,87 +0,0 @@
-package com.example.assignment02
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.Button
-import android.widget.TextView
-import android.widget.Toast
-import androidx.fragment.app.Fragment
-import android.content.DialogInterface;
-import androidx.appcompat.app.AlertDialog;
-import androidx.appcompat.app.AppCompatActivity;
-
-class CountFragment : Fragment() {
-
-    private lateinit var numberText: TextView
-    private var currentNumber: Int = 0
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        val view = inflater.inflate(R.layout.fragment_count, container, false)
-
-        numberText = view.findViewById(R.id.number_text)
-        val countButton = view.findViewById<Button>(R.id.count_btn)
-        val toastButton = view.findViewById<Button>(R.id.toast_btn)
-        val randomButton = view.findViewById<Button>(R.id.random_btn)
-
-        currentNumber = arguments?.getInt("count") ?: 0
-        numberText.text = currentNumber.toString()
-
-        countButton.setOnClickListener {
-            currentNumber++
-            numberText.text = currentNumber.toString()
-        }
-        toastButton.setOnClickListener {
-            showAlertDialog()
-        }
-        randomButton.setOnClickListener {
-            val randomFragment = RandomFragment.newInstance(currentNumber)
-            requireActivity().supportFragmentManager.beginTransaction()
-                .replace(R.id.fragment_container, randomFragment)
-                .addToBackStack(null)
-                .commit()
-        }
-
-        return view
-    }
-
-    private fun showAlertDialog() {
-        // Fragment에서는 requireContext()를 사용하여 컨텍스트를 가져옴
-        val builder = AlertDialog.Builder(requireContext())
-        builder.setTitle("ToastButton")
-            .setMessage("초기화/Toast/취소")
-
-            // Positive 버튼 설정
-            .setPositiveButton("positive") { dialog, which ->
-                currentNumber = 0
-                numberText.text = currentNumber.toString()
-            }
-
-            // Neutral 버튼 설정
-            .setNeutralButton("neutral") { dialog, which ->
-                Toast.makeText(requireContext(), "Number: $currentNumber", Toast.LENGTH_SHORT).show()
-            }
-
-            // Negative 버튼 설정
-            .setNegativeButton("negative") { dialog, which ->
-            }
-
-            // 다이얼로그 생성 및 표시
-            .create()
-            .show()
-    }
-
-    companion object {
-        fun newInstance(count: Int): CountFragment {
-            val fragment = CountFragment()
-            val args = Bundle()
-            args.putInt("count", count)
-            fragment.arguments = args
-            return fragment
-        }
-    }
-}
diff --git a/app/src/main/java/com/example/assignment02/MainActivity.kt b/app/src/main/java/com/example/assignment02/MainActivity.kt
index a990021..35d1797 100644
--- a/app/src/main/java/com/example/assignment02/MainActivity.kt
+++ b/app/src/main/java/com/example/assignment02/MainActivity.kt
@@ -1,18 +1,72 @@
 package com.example.assignment02
 
-import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
+import android.widget.Button
+import android.widget.EditText
+import androidx.appcompat.app.AlertDialog
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
 
 class MainActivity : AppCompatActivity() {
 
+    val nameList = mutableListOf<String>()
+
+    lateinit var name_text: EditText
+    lateinit var recycler_view: RecyclerView
+    lateinit var nameAdapter: NameAdapter
+    lateinit var add_button: Button
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
-        if (savedInstanceState == null) {
-            supportFragmentManager.beginTransaction()
-                .replace(R.id.fragment_container, CountFragment.newInstance(0))
-                .commit()
+        name_text = findViewById(R.id.name_text)
+        recycler_view = findViewById(R.id.recycler_view)
+        nameAdapter = NameAdapter(nameList) { position ->showDeleteDialog(position)}
+        add_button = findViewById(R.id.add_button)
+
+        recycler_view.layoutManager = LinearLayoutManager(this)
+        recycler_view.adapter = nameAdapter
+
+        add_button.setOnClickListener {
+            nameList.add(name_text.text.toString())
+            nameAdapter.notifyItemInserted(nameList.size - 1)
+            name_text.setText("")
         }
     }
-}
\ No newline at end of file
+
+    private fun showDeleteDialog(position: Int) {
+        AlertDialog.Builder(this)
+            .setTitle("이름 목록 삭제하기")
+            .setMessage("이름 목록을 삭제해보자.")
+            .setPositiveButton("확인") { dialog, _ ->
+                showEditDialog(position)
+                dialog.dismiss()
+            }
+            .setNegativeButton("취소") { dialog, _ ->
+                dialog.dismiss()
+            }
+            .create()
+            .show()
+    }
+    private fun showEditDialog(position: Int) {
+        val editText = EditText(this).apply {
+            hint = "수정할 이름을 입력하세요."
+            setText("")
+        }
+
+        AlertDialog.Builder(this)
+            .setTitle(" ")
+            .setView(editText)
+            .setPositiveButton("확인") { _, _ ->
+                nameList[position] = editText.text.toString()
+                nameAdapter.notifyItemChanged(position)
+            }
+            .setNegativeButton("취소") { dialog, _ ->
+                dialog.dismiss()
+            }
+            .create()
+            .show()
+    }
+}
diff --git a/app/src/main/java/com/example/assignment02/NameAdapter.kt b/app/src/main/java/com/example/assignment02/NameAdapter.kt
new file mode 100644
index 0000000..140e95e
--- /dev/null
+++ b/app/src/main/java/com/example/assignment02/NameAdapter.kt
@@ -0,0 +1,32 @@
+package com.example.assignment02
+
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.recyclerview.widget.RecyclerView
+
+class NameAdapter(
+    private val nameList: MutableList<String>,
+    private val onItemClick: (Int) -> Unit
+) : RecyclerView.Adapter<NameAdapter.NameViewHolder>() {
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NameViewHolder {
+        val view = LayoutInflater.from(parent.context)
+            .inflate(R.layout.adapter_name, parent, false)
+        return NameViewHolder(view)
+    }
+
+    override fun onBindViewHolder(holder: NameViewHolder, position: Int) {
+        holder.name_text.text = nameList[position]
+        holder.itemView.setOnClickListener {
+            onItemClick(position)
+        }
+    }
+
+    override fun getItemCount(): Int = nameList.size
+
+    class NameViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
+        val name_text: TextView = itemView.findViewById(R.id.name_text)
+    }
+}
diff --git a/app/src/main/java/com/example/assignment02/RandomFragment.kt b/app/src/main/java/com/example/assignment02/RandomFragment.kt
deleted file mode 100644
index 4aeeb4b..0000000
--- a/app/src/main/java/com/example/assignment02/RandomFragment.kt
+++ /dev/null
@@ -1,54 +0,0 @@
-package com.example.assignment02
-
-import android.os.Bundle
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.TextView
-import androidx.activity.addCallback
-import androidx.fragment.app.Fragment
-
-class RandomFragment : Fragment() {
-
-    private var currentNumber: Int = 0
-    private lateinit var number_number: TextView
-
-    companion object {
-        fun newInstance(randomNumber: Int): RandomFragment {
-            val fragment = RandomFragment()
-            val args = Bundle()
-            args.putInt("randomNumber", randomNumber)
-            fragment.arguments = args
-            return fragment
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        return inflater.inflate(R.layout.fragment_random, container, false)
-    }
-
-    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
-        super.onViewCreated(view, savedInstanceState)
-
-        number_number = view.findViewById(R.id.number_text)
-
-        arguments?.let {
-            currentNumber = it.getInt("randomNumber", 0)
-        }
-
-        currentNumber = (0..currentNumber-1).random()
-        number_number.text = currentNumber.toString()
-
-        requireActivity().onBackPressedDispatcher.addCallback(viewLifecycleOwner) {
-            parentFragmentManager.popBackStack()
-
-            val countFragment = CountFragment.newInstance(currentNumber)
-            parentFragmentManager.beginTransaction()
-                .replace(R.id.fragment_container, countFragment)
-                .commit()
-        }
-    }
-}
diff --git a/app/src/main/res/drawable/round_button.xml b/app/src/main/res/drawable/round_button.xml
new file mode 100644
index 0000000..33561c3
--- /dev/null
+++ b/app/src/main/res/drawable/round_button.xml
@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="@android:color/holo_orange_dark" />
+    <corners android:radius="10dp" />
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 0926cd8..9dfdf6d 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,14 +1,47 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.appcompat.widget.LinearLayoutCompat 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=".MainActivity">
 
-    <FrameLayout
-        android:id="@+id/fragment_container"
+    <EditText
+        android:id="@+id/name_text"
         android:layout_width="match_parent"
-        android:layout_height="match_parent" />
+        android:layout_height="wrap_content"
+        android:layout_marginLeft="100dp"
+        android:layout_marginRight="100dp"
+        android:ems="10"
+        android:hint="새로운 이름을 추가하세요."
+        android:inputType="text" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_margin="10dp"
+        android:layout_weight="1">
+
+    </androidx.recyclerview.widget.RecyclerView>
+
+    <Button
+        android:id="@+id/add_button"
+        android:layout_width="60dp"
+        android:layout_height="60dp"
+        android:layout_gravity="right"
+        android:layout_marginRight="10dp"
+        android:layout_marginBottom="10dp"
+        android:background="@drawable/round_button"
+        android:backgroundTint="#FF9800"
+        android:backgroundTintMode="add"
+        android:drawableTint="#FF5722"
+        android:drawableTintMode="add"
+        android:foregroundTint="#FF5722"
+        android:text="+"
+        android:textColorLink="#000000"
+        android:textSize="20sp"
+        app:iconTint="#FF5722" />
+
+</androidx.appcompat.widget.LinearLayoutCompat>
\ No newline at end of file
diff --git a/app/src/main/res/layout/adapter_name.xml b/app/src/main/res/layout/adapter_name.xml
new file mode 100644
index 0000000..0f5c960
--- /dev/null
+++ b/app/src/main/res/layout/adapter_name.xml
@@ -0,0 +1,16 @@
+<!-- res/layout/item_name.xml -->
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="horizontal"
+    android:layout_margin="5dp"
+    android:background="@android:color/holo_orange_dark"
+    android:padding="10dp">
+
+    <TextView
+        android:id="@+id/name_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="16sp"
+        android:textColor="@android:color/white" />
+</LinearLayout>
diff --git a/app/src/main/res/layout/fragment_count.xml b/app/src/main/res/layout/fragment_count.xml
deleted file mode 100644
index e1b9e9e..0000000
--- a/app/src/main/res/layout/fragment_count.xml
+++ /dev/null
@@ -1,52 +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"
-    android:padding="30dp"
-    tools:context=".CountFragment">
-
-    <TextView
-        android:id="@+id/number_text"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="0"
-        android:textSize="48sp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-    <Button
-        android:id="@+id/count_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Count"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/number_text"
-        app:layout_constraintVertical_bias="0.5" />
-
-    <Button
-        android:id="@+id/toast_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Toast"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/number_text"
-        app:layout_constraintVertical_bias="0.5" />
-
-    <Button
-        android:id="@+id/random_btn"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Random"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/number_text"
-        app:layout_constraintVertical_bias="0.5" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_random.xml b/app/src/main/res/layout/fragment_random.xml
deleted file mode 100644
index 43249c2..0000000
--- a/app/src/main/res/layout/fragment_random.xml
+++ /dev/null
@@ -1,21 +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"
-    android:padding="30dp"
-    tools:context=".CountFragment">
-
-    <TextView
-        android:id="@+id/number_text"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="0"
-        android:textSize="48sp"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index c8524cd..efdb783 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -2,4 +2,5 @@
 <resources>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
+    <color name="orange">#FF5722</color>
 </resources>
\ No newline at end of file

From f5e2f50ac886aca19916631784a4a3b711c8bf59 Mon Sep 17 00:00:00 2001
From: kimjusang <jusang3057@gmail.com>
Date: Mon, 2 Dec 2024 03:05:37 +0900
Subject: [PATCH 2/4] assign6

202024-12-02
---
 .idea/workspace.xml                                      | 9 ---------
 .../main/java/com/example/assignment02/MainActivity.kt   | 1 +
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 198b04f..12dd8a9 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -22,17 +22,8 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="66610982-134f-47c4-a8b4-c3cdf03dc3f9" name="Changes" comment="">
-      <change afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/NameAdapter.kt" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/app/src/main/res/drawable/round_button.xml" afterDir="false" />
-      <change afterPath="$PROJECT_DIR$/app/src/main/res/layout/adapter_name.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/CountFragment.kt" beforeDir="false" />
       <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/RandomFragment.kt" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/fragment_count.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/fragment_random.xml" beforeDir="false" />
-      <change beforePath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
diff --git a/app/src/main/java/com/example/assignment02/MainActivity.kt b/app/src/main/java/com/example/assignment02/MainActivity.kt
index 35d1797..2b7dda6 100644
--- a/app/src/main/java/com/example/assignment02/MainActivity.kt
+++ b/app/src/main/java/com/example/assignment02/MainActivity.kt
@@ -18,6 +18,7 @@ class MainActivity : AppCompatActivity() {
     lateinit var add_button: Button
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        // 포크용 변경
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 

From 73d832972ea8db1ad78a285dbf64e898e711cd50 Mon Sep 17 00:00:00 2001
From: kimjusang <jusang3057@gmail.com>
Date: Mon, 23 Dec 2024 16:35:26 +0900
Subject: [PATCH 3/4] =?UTF-8?q?=EA=B3=BC=EC=A0=9C7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

2024 12 23
---
 .idea/workspace.xml                                        | 4 ++--
 app/src/main/java/com/example/assignment02/MainActivity.kt | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 12dd8a9..9f7ab1a 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -22,7 +22,7 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="66610982-134f-47c4-a8b4-c3cdf03dc3f9" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -33,7 +33,7 @@
   <component name="ClangdSettings">
     <option name="formatViaClangd" value="false" />
   </component>
-  <component name="ExecutionTargetManager" SELECTED_TARGET="device_and_snapshot_combo_box_target[R3CMB05SW2L]" />
+  <component name="ExecutionTargetManager" SELECTED_TARGET="device_and_snapshot_combo_box_target[C:\Users\상상\.android\avd\Medium_Phone_API_33.avd]" />
   <component name="ExternalProjectsData">
     <projectState path="$PROJECT_DIR$">
       <ProjectState />
diff --git a/app/src/main/java/com/example/assignment02/MainActivity.kt b/app/src/main/java/com/example/assignment02/MainActivity.kt
index 2b7dda6..e31ae70 100644
--- a/app/src/main/java/com/example/assignment02/MainActivity.kt
+++ b/app/src/main/java/com/example/assignment02/MainActivity.kt
@@ -11,6 +11,7 @@ import androidx.recyclerview.widget.RecyclerView
 class MainActivity : AppCompatActivity() {
 
     val nameList = mutableListOf<String>()
+    //1
 
     lateinit var name_text: EditText
     lateinit var recycler_view: RecyclerView

From 59b8d20efca6b1ff386d6f04c1728d0a4334ecf9 Mon Sep 17 00:00:00 2001
From: kimjusang <jusang3057@gmail.com>
Date: Mon, 23 Dec 2024 16:56:42 +0900
Subject: [PATCH 4/4] =?UTF-8?q?=EA=B3=BC=EC=A0=9C7?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

2024 12 23
---
 .idea/workspace.xml                           |  50 ++++--
 app/src/main/AndroidManifest.xml              |   1 +
 .../com/example/assignment02/CountFragment.kt | 164 ++++++++++++++++++
 .../com/example/assignment02/MainActivity.kt  |  75 ++------
 .../com/example/assignment02/NameAdapter.kt   |  32 ----
 .../example/assignment02/RandomFragment.kt    |  56 ++++++
 app/src/main/res/drawable/round_button.xml    |   5 -
 app/src/main/res/layout/activity_main.xml     |  43 +----
 app/src/main/res/layout/adapter_name.xml      |  16 --
 app/src/main/res/layout/fragment_count.xml    |  52 ++++++
 app/src/main/res/layout/fragment_random.xml   |  21 +++
 app/src/main/res/values/colors.xml            |   1 -
 12 files changed, 347 insertions(+), 169 deletions(-)
 create mode 100644 app/src/main/java/com/example/assignment02/CountFragment.kt
 delete mode 100644 app/src/main/java/com/example/assignment02/NameAdapter.kt
 create mode 100644 app/src/main/java/com/example/assignment02/RandomFragment.kt
 delete mode 100644 app/src/main/res/drawable/round_button.xml
 delete mode 100644 app/src/main/res/layout/adapter_name.xml
 create mode 100644 app/src/main/res/layout/fragment_count.xml
 create mode 100644 app/src/main/res/layout/fragment_random.xml

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 9f7ab1a..71b0d42 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -10,8 +10,9 @@
           <theme>@style/Theme.Assignment02</theme>
         </config>
       </layout>
-      <layout url="file://$PROJECT_DIR$/app/src/main/res/layout/adapter_name.xml">
+      <layout url="file://$PROJECT_DIR$/app/src/main/res/layout/fragment_random.xml">
         <config>
+          <state>portrait</state>
           <theme>@style/Theme.Assignment02</theme>
         </config>
       </layout>
@@ -22,8 +23,25 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="66610982-134f-47c4-a8b4-c3cdf03dc3f9" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/misc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/misc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.gradle/config.properties" beforeDir="false" afterPath="$PROJECT_DIR$/.gradle/config.properties" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/.gitignore" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/.gitignore" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/compiler.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/compiler.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/deploymentTargetDropDown.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/deploymentTargetDropDown.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/gradle.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/gradle.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/kotlinc.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/kotlinc.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/migrations.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/migrations.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/vcs.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/vcs.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/build.gradle.kts" beforeDir="false" afterPath="$PROJECT_DIR$/app/build.gradle.kts" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/AndroidManifest.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/AndroidManifest.xml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/MainActivity.kt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/java/com/example/assignment02/NameAdapter.kt" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/drawable/round_button.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/layout/activity_main.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/layout/adapter_name.xml" beforeDir="false" />
+      <change beforePath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" beforeDir="false" afterPath="$PROJECT_DIR$/app/src/main/res/values/colors.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/gradle/wrapper/gradle-wrapper.properties" beforeDir="false" afterPath="$PROJECT_DIR$/gradle/wrapper/gradle-wrapper.properties" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/gradlew.bat" beforeDir="false" afterPath="$PROJECT_DIR$/gradlew.bat" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -33,7 +51,7 @@
   <component name="ClangdSettings">
     <option name="formatViaClangd" value="false" />
   </component>
-  <component name="ExecutionTargetManager" SELECTED_TARGET="device_and_snapshot_combo_box_target[C:\Users\상상\.android\avd\Medium_Phone_API_33.avd]" />
+  <component name="ExecutionTargetManager" SELECTED_TARGET="device_and_snapshot_combo_box_target[R3CMB05SW2L]" />
   <component name="ExternalProjectsData">
     <projectState path="$PROJECT_DIR$">
       <ProjectState />
@@ -54,10 +72,8 @@
   <component name="FileTemplateManagerImpl">
     <option name="RECENT_TEMPLATES">
       <list>
-        <option value="resourceFile" />
-        <option value="Class" />
         <option value="Kotlin Class" />
-        <option value="layoutResourceFile" />
+        <option value="Class" />
       </list>
     </option>
   </component>
@@ -70,18 +86,18 @@
     <option name="hideEmptyMiddlePackages" value="true" />
     <option name="showLibraryContents" value="true" />
   </component>
-  <component name="PropertiesComponent">{
-  &quot;keyToString&quot;: {
-    &quot;RunOnceActivity.OpenProjectViewOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.ShowReadmeOnStart&quot;: &quot;true&quot;,
-    &quot;RunOnceActivity.cidr.known.project.marker&quot;: &quot;true&quot;,
-    &quot;cf.first.check.clang-format&quot;: &quot;false&quot;,
-    &quot;cidr.known.project.marker&quot;: &quot;true&quot;,
-    &quot;last_directory_selection&quot;: &quot;C:/Users/Public/assignment02/app/src/main/java&quot;,
-    &quot;last_opened_file_path&quot;: &quot;C:/Users/Public/assignment02/app/src/main/res/layout&quot;,
-    &quot;settings.editor.selected.configurable&quot;: &quot;AndroidSdkUpdater&quot;
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "RunOnceActivity.cidr.known.project.marker": "true",
+    "cf.first.check.clang-format": "false",
+    "cidr.known.project.marker": "true",
+    "last_directory_selection": "C:/Users/Public/assignment02/app/src/main/java",
+    "last_opened_file_path": "C:/Users/Public/assignment02/app/src/main/res/layout",
+    "settings.editor.selected.configurable": "AndroidSdkUpdater"
   }
-}</component>
+}]]></component>
   <component name="RecentsManager">
     <key name="CopyFile.RECENT_KEYS">
       <recent name="C:\Users\Public\assignment02\app\src\main\res\layout" />
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index bd2b54d..8699b45 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -2,6 +2,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
diff --git a/app/src/main/java/com/example/assignment02/CountFragment.kt b/app/src/main/java/com/example/assignment02/CountFragment.kt
new file mode 100644
index 0000000..cbee496
--- /dev/null
+++ b/app/src/main/java/com/example/assignment02/CountFragment.kt
@@ -0,0 +1,164 @@
+package com.example.assignment02
+
+import android.app.Notification
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.Button
+import android.widget.TextView
+import android.widget.Toast
+import androidx.fragment.app.Fragment
+import androidx.appcompat.app.AlertDialog
+import android.Manifest
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.core.app.ActivityCompat
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+
+
+class CountFragment : Fragment() {
+
+    private lateinit var numberText: TextView
+    private lateinit var notification: Notification
+    private var currentNumber: Int = 0
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        val view = inflater.inflate(R.layout.fragment_count, container, false)
+
+        numberText = view.findViewById(R.id.number_text)
+        val countButton = view.findViewById<Button>(R.id.count_btn)
+        val toastButton = view.findViewById<Button>(R.id.toast_btn)
+        val randomButton = view.findViewById<Button>(R.id.random_btn)
+
+        currentNumber = arguments?.getInt("count") ?: 0
+        numberText.text = currentNumber.toString()
+
+        countButton.setOnClickListener {
+            currentNumber++
+            numberText.text = currentNumber.toString()
+        }
+        toastButton.setOnClickListener {
+            showAlertDialog()
+        }
+        randomButton.setOnClickListener {
+            // 숫자 전달을 위한 Intent 생성
+            val intent = Intent(context, MainActivity::class.java).apply {
+                putExtra("number", currentNumber) // 데이터를 Intent에 추가
+                putExtra("Notification", true) // Notification 여부 플래그 추가
+            }
+            val pendingIntent: PendingIntent = PendingIntent.getActivity(
+                context,
+                0,
+                intent,
+                PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
+            )
+
+            notification = context?.let { it1 ->
+                NotificationCompat.Builder(it1, "assignment-7")
+                    .setSmallIcon(android.R.drawable.ic_notification_overlay)
+                    .setContentTitle("랜덤 숫자 (0 ~ " + currentNumber + ")")
+                    .setContentText("새로운 랜덤 숫자가 생성되었습니다.")
+                    .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+                    .setContentIntent(pendingIntent) // 클릭 시 실행
+                    .setAutoCancel(true) // 클릭 후 알림 자동 제거
+                    .build()
+            }!!
+
+            showNotification()
+        }
+
+        return view
+    }
+
+    private fun createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val name = "Assignment Notification"
+            val descriptionText = "Channel for Assignment notifications"
+            val importance = NotificationManager.IMPORTANCE_DEFAULT
+            val channel = NotificationChannel("assignment-7", name, importance).apply {
+                description = descriptionText
+            }
+            // NotificationManager에 채널 등록
+            val notificationManager: NotificationManager =
+                requireContext().getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+            notificationManager.createNotificationChannel(channel)
+        }
+    }
+
+    private val requestPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission()
+    ) { isGranted: Boolean ->
+        if (isGranted) {
+            // 권한이 허용된 경우 알림 표시
+            showNotification()
+        } else {
+            // 권한이 거부된 경우 처리
+            println("Notification permission denied")
+        }
+    }
+
+    // 권한등을 채크하고 Notification을 보낸다.
+    private fun showNotification() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            // Android 13 이상에서는 POST_NOTIFICATIONS 권한 확인
+            if (ActivityCompat.checkSelfPermission(
+                    requireContext(),
+                    Manifest.permission.POST_NOTIFICATIONS
+                ) != PackageManager.PERMISSION_GRANTED
+            ) {
+                requestPermissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+                return
+            }
+        }
+
+        // 권한이 있거나 Android 12 이하인 경우 알림 표시
+        NotificationManagerCompat.from(requireContext()).notify(1, notification)
+    }
+
+    private fun showAlertDialog() {
+        // Fragment에서는 requireContext()를 사용하여 컨텍스트를 가져옴
+        val builder = AlertDialog.Builder(requireContext())
+        builder.setTitle("ToastButton")
+            .setMessage("초기화/Toast/취소")
+
+            // Positive 버튼 설정
+            .setPositiveButton("positive") { dialog, which ->
+                currentNumber = 0
+                numberText.text = currentNumber.toString()
+            }
+
+            // Neutral 버튼 설정
+            .setNeutralButton("neutral") { dialog, which ->
+                Toast.makeText(requireContext(), "Number: $currentNumber", Toast.LENGTH_SHORT).show()
+            }
+
+            // Negative 버튼 설정
+            .setNegativeButton("negative") { dialog, which ->
+            }
+
+            // 다이얼로그 생성 및 표시
+            .create()
+            .show()
+    }
+
+    companion object {
+        fun newInstance(count: Int): CountFragment {
+            val fragment = CountFragment()
+            val args = Bundle()
+            args.putInt("count", count)
+            fragment.arguments = args
+            return fragment
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/assignment02/MainActivity.kt b/app/src/main/java/com/example/assignment02/MainActivity.kt
index e31ae70..67ee012 100644
--- a/app/src/main/java/com/example/assignment02/MainActivity.kt
+++ b/app/src/main/java/com/example/assignment02/MainActivity.kt
@@ -1,74 +1,29 @@
 package com.example.assignment02
 
-import android.os.Bundle
-import android.widget.Button
-import android.widget.EditText
-import androidx.appcompat.app.AlertDialog
 import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.LinearLayoutManager
-import androidx.recyclerview.widget.RecyclerView
+import android.os.Bundle
+import androidx.fragment.app.Fragment
 
 class MainActivity : AppCompatActivity() {
 
-    val nameList = mutableListOf<String>()
-    //1
-
-    lateinit var name_text: EditText
-    lateinit var recycler_view: RecyclerView
-    lateinit var nameAdapter: NameAdapter
-    lateinit var add_button: Button
-
     override fun onCreate(savedInstanceState: Bundle?) {
-        // 포크용 변경
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_main)
 
-        name_text = findViewById(R.id.name_text)
-        recycler_view = findViewById(R.id.recycler_view)
-        nameAdapter = NameAdapter(nameList) { position ->showDeleteDialog(position)}
-        add_button = findViewById(R.id.add_button)
-
-        recycler_view.layoutManager = LinearLayoutManager(this)
-        recycler_view.adapter = nameAdapter
+        val isFromNotification = intent?.getBooleanExtra("Notification", false) ?: false
+        val data = intent?.getIntExtra("number", 0) ?: 0
 
-        add_button.setOnClickListener {
-            nameList.add(name_text.text.toString())
-            nameAdapter.notifyItemInserted(nameList.size - 1)
-            name_text.setText("")
-        }
-    }
-
-    private fun showDeleteDialog(position: Int) {
-        AlertDialog.Builder(this)
-            .setTitle("이름 목록 삭제하기")
-            .setMessage("이름 목록을 삭제해보자.")
-            .setPositiveButton("확인") { dialog, _ ->
-                showEditDialog(position)
-                dialog.dismiss()
-            }
-            .setNegativeButton("취소") { dialog, _ ->
-                dialog.dismiss()
-            }
-            .create()
-            .show()
-    }
-    private fun showEditDialog(position: Int) {
-        val editText = EditText(this).apply {
-            hint = "수정할 이름을 입력하세요."
-            setText("")
+        val fragment: Fragment = if (isFromNotification) {
+            // Notification을 통해 실행된 경우 FragmentB 로드 및 데이터 전달
+            RandomFragment.newInstance(data)
+        } else {
+            // 기본적으로 FragmentA 로드
+            CountFragment.newInstance(0)
         }
 
-        AlertDialog.Builder(this)
-            .setTitle(" ")
-            .setView(editText)
-            .setPositiveButton("확인") { _, _ ->
-                nameList[position] = editText.text.toString()
-                nameAdapter.notifyItemChanged(position)
-            }
-            .setNegativeButton("취소") { dialog, _ ->
-                dialog.dismiss()
-            }
-            .create()
-            .show()
+        // 선택된 Fragment를 동적으로 할당
+        supportFragmentManager.beginTransaction()
+            .replace(R.id.fragment_container, fragment)
+            .commit()
     }
-}
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/example/assignment02/NameAdapter.kt b/app/src/main/java/com/example/assignment02/NameAdapter.kt
deleted file mode 100644
index 140e95e..0000000
--- a/app/src/main/java/com/example/assignment02/NameAdapter.kt
+++ /dev/null
@@ -1,32 +0,0 @@
-package com.example.assignment02
-
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import android.widget.TextView
-import androidx.recyclerview.widget.RecyclerView
-
-class NameAdapter(
-    private val nameList: MutableList<String>,
-    private val onItemClick: (Int) -> Unit
-) : RecyclerView.Adapter<NameAdapter.NameViewHolder>() {
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): NameViewHolder {
-        val view = LayoutInflater.from(parent.context)
-            .inflate(R.layout.adapter_name, parent, false)
-        return NameViewHolder(view)
-    }
-
-    override fun onBindViewHolder(holder: NameViewHolder, position: Int) {
-        holder.name_text.text = nameList[position]
-        holder.itemView.setOnClickListener {
-            onItemClick(position)
-        }
-    }
-
-    override fun getItemCount(): Int = nameList.size
-
-    class NameViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
-        val name_text: TextView = itemView.findViewById(R.id.name_text)
-    }
-}
diff --git a/app/src/main/java/com/example/assignment02/RandomFragment.kt b/app/src/main/java/com/example/assignment02/RandomFragment.kt
new file mode 100644
index 0000000..c4eaf7e
--- /dev/null
+++ b/app/src/main/java/com/example/assignment02/RandomFragment.kt
@@ -0,0 +1,56 @@
+package com.example.assignment02
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.TextView
+import androidx.activity.addCallback
+import androidx.fragment.app.Fragment
+
+class RandomFragment : Fragment() {
+
+    private var currentNumber: Int = 0
+    private lateinit var number_number: TextView
+
+    companion object {
+        fun newInstance(randomNumber: Int): RandomFragment {
+            val fragment = RandomFragment()
+            val args = Bundle()
+            args.putInt("randomNumber", randomNumber)
+            fragment.arguments = args
+            return fragment
+        }
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.fragment_random, container, false)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+        number_number = view.findViewById(R.id.number_text)
+
+        arguments?.let {
+            currentNumber = it.getInt("randomNumber", 0)
+        }
+
+        if (currentNumber>=1) {
+            currentNumber = (0..currentNumber - 1).random()
+        }
+        number_number.text = currentNumber.toString()
+
+        requireActivity().onBackPressedDispatcher.addCallback(viewLifecycleOwner) {
+            parentFragmentManager.popBackStack()
+
+            val countFragment = CountFragment.newInstance(currentNumber)
+            parentFragmentManager.beginTransaction()
+                .replace(R.id.fragment_container, countFragment)
+                .commit()
+        }
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable/round_button.xml b/app/src/main/res/drawable/round_button.xml
deleted file mode 100644
index 33561c3..0000000
--- a/app/src/main/res/drawable/round_button.xml
+++ /dev/null
@@ -1,5 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="@android:color/holo_orange_dark" />
-    <corners android:radius="10dp" />
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 9dfdf6d..0926cd8 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,47 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.appcompat.widget.LinearLayoutCompat xmlns:android="http://schemas.android.com/apk/res/android"
+<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"
-    android:orientation="vertical"
     tools:context=".MainActivity">
 
-    <EditText
-        android:id="@+id/name_text"
+    <FrameLayout
+        android:id="@+id/fragment_container"
         android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginLeft="100dp"
-        android:layout_marginRight="100dp"
-        android:ems="10"
-        android:hint="새로운 이름을 추가하세요."
-        android:inputType="text" />
+        android:layout_height="match_parent" />
 
-    <androidx.recyclerview.widget.RecyclerView
-        android:id="@+id/recycler_view"
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_margin="10dp"
-        android:layout_weight="1">
-
-    </androidx.recyclerview.widget.RecyclerView>
-
-    <Button
-        android:id="@+id/add_button"
-        android:layout_width="60dp"
-        android:layout_height="60dp"
-        android:layout_gravity="right"
-        android:layout_marginRight="10dp"
-        android:layout_marginBottom="10dp"
-        android:background="@drawable/round_button"
-        android:backgroundTint="#FF9800"
-        android:backgroundTintMode="add"
-        android:drawableTint="#FF5722"
-        android:drawableTintMode="add"
-        android:foregroundTint="#FF5722"
-        android:text="+"
-        android:textColorLink="#000000"
-        android:textSize="20sp"
-        app:iconTint="#FF5722" />
-
-</androidx.appcompat.widget.LinearLayoutCompat>
\ No newline at end of file
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/adapter_name.xml b/app/src/main/res/layout/adapter_name.xml
deleted file mode 100644
index 0f5c960..0000000
--- a/app/src/main/res/layout/adapter_name.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<!-- res/layout/item_name.xml -->
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-    android:layout_height="wrap_content"
-    android:orientation="horizontal"
-    android:layout_margin="5dp"
-    android:background="@android:color/holo_orange_dark"
-    android:padding="10dp">
-
-    <TextView
-        android:id="@+id/name_text"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:textSize="16sp"
-        android:textColor="@android:color/white" />
-</LinearLayout>
diff --git a/app/src/main/res/layout/fragment_count.xml b/app/src/main/res/layout/fragment_count.xml
new file mode 100644
index 0000000..e1b9e9e
--- /dev/null
+++ b/app/src/main/res/layout/fragment_count.xml
@@ -0,0 +1,52 @@
+<?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"
+    android:padding="30dp"
+    tools:context=".CountFragment">
+
+    <TextView
+        android:id="@+id/number_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="0"
+        android:textSize="48sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <Button
+        android:id="@+id/count_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Count"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/number_text"
+        app:layout_constraintVertical_bias="0.5" />
+
+    <Button
+        android:id="@+id/toast_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Toast"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/number_text"
+        app:layout_constraintVertical_bias="0.5" />
+
+    <Button
+        android:id="@+id/random_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Random"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/number_text"
+        app:layout_constraintVertical_bias="0.5" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/fragment_random.xml b/app/src/main/res/layout/fragment_random.xml
new file mode 100644
index 0000000..43249c2
--- /dev/null
+++ b/app/src/main/res/layout/fragment_random.xml
@@ -0,0 +1,21 @@
+<?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"
+    android:padding="30dp"
+    tools:context=".CountFragment">
+
+    <TextView
+        android:id="@+id/number_text"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="0"
+        android:textSize="48sp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/app/src/main/res/values/colors.xml b/app/src/main/res/values/colors.xml
index efdb783..c8524cd 100644
--- a/app/src/main/res/values/colors.xml
+++ b/app/src/main/res/values/colors.xml
@@ -2,5 +2,4 @@
 <resources>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
-    <color name="orange">#FF5722</color>
 </resources>
\ No newline at end of file