[김예란_Android] 3주차 과제 제출

app/build.gradle.kts

@@ -45,4 +45,6 @@ dependencies {
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)
+    val fragment_version = "1.8.9"
+    implementation("androidx.fragment:fragment-ktx:$fragment_version")
 }

app/src/main/AndroidManifest.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <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"
@@ -14,12 +14,17 @@
         tools:targetApi="31">
         <activity
             android:name=".MainActivity"
-            android:exported="true" >
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".SecondActivity"
+            android:exported="false">
+        </activity>
     </application>
 
 </manifest>

app/src/main/java/com/example/android_25_2/MainActivity.kt

@@ -1,20 +1,116 @@
 package com.example.android_25_2
 
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.Manifest
+import android.app.PendingIntent
+import android.content.Context
+import android.content.Intent
+import android.content.pm.PackageManager
+import android.os.Build
 import android.os.Bundle
+import android.widget.Button
+import android.widget.TextView
+import android.widget.Toast
 import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.contract.ActivityResultContracts
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
 import androidx.core.view.ViewCompat
 import androidx.core.view.WindowInsetsCompat
+import kotlin.random.Random
 
+const val CHANNEL_ID = "channel_id"
 class MainActivity : AppCompatActivity() {
+    private lateinit var launcher: ActivityResultLauncher<Intent>
+
+    fun createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val name = getString(R.string.channel_name)
+            val descriptionText = getString(R.string.content_text)
+            val importance = NotificationManager.IMPORTANCE_DEFAULT
+            val channel = NotificationChannel(CHANNEL_ID, name, importance).apply {
+                description = descriptionText
+            }
+            val notificationManager: NotificationManager =
+                getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+            notificationManager.createNotificationChannel(channel)
+        }
+    }
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
         setContentView(R.layout.activity_main)
+
         ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main)) { v, insets ->
             val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
             v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
             insets
         }
+        createNotificationChannel()
+
+        val requestPermissionLauncher =
+            registerForActivityResult(
+                ActivityResultContracts.RequestPermission()
+            ) { isGranted: Boolean ->
+                if (isGranted) {
+                    Toast.makeText(this, R.string.message_permission_yes, Toast.LENGTH_SHORT).show()
+                    createNotificationChannel()
+                } else {
+                    Toast.makeText(this, R.string.message_permission_no, Toast.LENGTH_SHORT).show()
+                }
+            }
+        launcher = registerForActivityResult(ActivityResultContracts.StartActivityForResult()) {}
+
+        val textView: TextView = findViewById(R.id.textView_main)
+
+        val toastButton: Button = findViewById(R.id.button_toast)
+        toastButton.setOnClickListener {
+            Toast.makeText(this@MainActivity, getString(R.string.toast_message), Toast.LENGTH_SHORT).show()
+        }
+
+        val countButton: Button = findViewById(R.id.button_count)
+        countButton.setOnClickListener {
+            val currentText1 = textView.text.toString().toInt()
+            val newCount = currentText1 + 1
+            textView.text = newCount.toString()
+        }
+
+        val intent = Intent(this, SecondActivity::class.java)
+        val pendingIntent = PendingIntent.getActivity(this@MainActivity, 0, intent, PendingIntent.FLAG_IMMUTABLE)
+
+        val builder = NotificationCompat.Builder(this, CHANNEL_ID)
+            .setSmallIcon(R.drawable.ic_launcher_foreground)
+            .setContentTitle(getString(R.string.content_title))
+            .setContentText(getString(R.string.content_text))
+            .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+            .setContentIntent(pendingIntent)
+            .addAction(R.drawable.ic_launcher_background, getString(R.string.builder_action_close), null)
+
+        val randomButton: Button = findViewById(R.id.button_random)
+        randomButton.setOnClickListener {
+            with(NotificationManagerCompat.from(this)) {
+                if (ActivityCompat.checkSelfPermission(
+                        this@MainActivity,
+                        Manifest.permission.POST_NOTIFICATIONS
+                    ) != PackageManager.PERMISSION_GRANTED
+                ) {
+                    Toast.makeText(this@MainActivity, R.string.message_permission_no, Toast.LENGTH_SHORT).show()
+                    return@setOnClickListener
+                }
+            }
+            NotificationManagerCompat.from(this).notify(0, builder.build())
+            val randomNumber = Random.nextInt(0, textView.text.toString().toInt())
+            launchSecondActivity(randomNumber)
+        }
+    }
+
+    fun launchSecondActivity(randomNumber: Int) {
+        val intent = Intent(this, SecondActivity::class.java)
+        intent.putExtra("random_number", randomNumber)
+        launcher.launch(intent)
     }
 }

app/src/main/java/com/example/android_25_2/SecondActivity.kt

@@ -0,0 +1,36 @@
+package com.example.android_25_2
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import android.widget.Button
+import android.widget.TextView
+import androidx.activity.result.ActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.activity.result.registerForActivityResult
+import androidx.appcompat.app.AppCompatActivity
+import androidx.core.view.ViewCompat
+import androidx.core.view.WindowInsetsCompat
+import kotlin.random.Random
+
+class SecondActivity : AppCompatActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_second)
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.Second)) { v, insets ->
+            val systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars())
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom)
+            insets
+        }
+
+        val textView: TextView = findViewById(R.id.textView_main)
+
+        val receivedRandomNumber = intent.getIntExtra("random_number", 0)
+        textView.text = receivedRandomNumber.toString()
+
+        val resultIntent = Intent()
+        resultIntent.putExtra("random_number", textView.text)
+        setResult(Activity.RESULT_OK, resultIntent)
+    }
+}

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

@@ -1,10 +1,63 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout 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:id="@+id/main"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:background="@color/blue"
     tools:context=".MainActivity">
 
+    <TextView
+        android:id="@+id/textView_main"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="0"
+        android:textSize="50sp"
+        android:textColor="@color/white"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        android:layout_marginTop="250dp"/>
+
+    <Button
+        android:id="@+id/button_count"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_count"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <Button
+        android:id="@+id/button_toast"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_toast"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        android:layout_marginEnd="180dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <Button
+        android:id="@+id/button_random"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_random"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        android:layout_marginStart="180dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,62 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/Second"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/purple_500"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    tools:context=".SecondActivity">
+
+    <TextView
+        android:id="@+id/textView_main"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="0"
+        android:textSize="50sp"
+        android:textColor="@color/white"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        android:layout_marginTop="250dp"/>
+
+    <Button
+        android:id="@+id/button_count"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_count"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <Button
+        android:id="@+id/button_toast"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_toast"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        android:layout_marginEnd="180dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+    <Button
+        android:id="@+id/button_random"
+        android:layout_width="80dp"
+        android:layout_height="35dp"
+        android:text="@string/message_button_random"
+        android:textSize="9sp"
+        android:backgroundTint="@color/purple_200"
+        app:layout_constraintTop_toBottomOf="@+id/textView_main"
+        android:layout_marginTop="200dp"
+        android:layout_marginStart="180dp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"/>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -5,6 +5,7 @@
     <color name="purple_700">#FF3700B3</color>
     <color name="teal_200">#FF03DAC5</color>
     <color name="teal_700">#FF018786</color>
+    <color name="blue">#1E90FF</color>
     <color name="black">#FF000000</color>
     <color name="white">#FFFFFFFF</color>
 </resources>

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

@@ -1,3 +1,15 @@
 <resources>
     <string name="app_name">Android_25-2</string>
+    <string name="message_button_count">"COUNT"</string>
+    <string name="message_button_toast">"TOAST"</string>
+    <string name="message_button_random">"RANDOM"</string>
+    <string name="toast_message">"Boink"</string>
+
+    <string name="message_permission_yes">"Notification permission has been granted"</string>
+    <string name="message_permission_no">"Notification permission denied"</string>
+    <string name="channel_id">"id"</string>
+    <string name="channel_name">"name"</string>
+    <string name="content_title">"Random number"</string>
+    <string name="content_text">"your number has arrived"</string>
+    <string name="builder_action_close">"close"</string>
 </resources>

gradle/libs.versions.toml

@@ -9,6 +9,7 @@ appcompat = "1.7.1"
 material = "1.12.0"
 activity = "1.11.0"
 constraintlayout = "2.2.1"
+fragment_version = "1.8.9"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }