[Setting] NotificationUtil (#41)

app/src/main/kotlin/ac/dnd/bookkeeping/android/BookkeepingApplication.kt

@@ -1,6 +1,14 @@
 package ac.dnd.bookkeeping.android
 
+import ac.dnd.bookkeeping.android.presentation.common.CHANNEL_1
+import ac.dnd.bookkeeping.android.presentation.common.CHANNEL_GROUP_1
 import android.app.Application
+import android.app.NotificationChannel
+import android.app.NotificationChannelGroup
+import android.app.NotificationManager
+import android.content.Context
+import android.os.Build
+import androidx.annotation.RequiresApi
 import com.kakao.sdk.common.KakaoSdk
 import dagger.hilt.android.HiltAndroidApp
 
@@ -9,5 +17,34 @@ open class BookkeepingApplication : Application() {
     override fun onCreate() {
         super.onCreate()
         KakaoSdk.init(this, BuildConfig.KAKAO_APP_KEY)
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            initializeChannel(this)
+        }
+    }
+
+    @RequiresApi(Build.VERSION_CODES.O)
+    private fun initializeChannel(
+        context: Context
+    ) {
+        val channel1 = NotificationChannel(
+            CHANNEL_1,
+            "channel 1",
+            NotificationManager.IMPORTANCE_HIGH
+        ).apply {
+            description = "This is channel 1"
+        }
+
+        val group = NotificationChannelGroup(
+            CHANNEL_GROUP_1,
+            "group 1"
+        ).apply {
+            channels.add(channel1)
+        }
+
+        context.getSystemService(NotificationManager::class.java).run {
+            createNotificationChannel(channel1)
+            createNotificationChannelGroup(group)
+        }
     }
 }

presentation/src/main/AndroidManifest.xml

@@ -1,6 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+
     <application>
         <activity
             android:name=".ui.main.MainActivity"

presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/Constants.kt

@@ -1,3 +1,6 @@
 package ac.dnd.bookkeeping.android.presentation.common
 
 const val REGEX_EMAIL = "^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$"
+
+const val CHANNEL_1 = "1"
+const val CHANNEL_GROUP_1 = "1"

presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/common/util/NotificationUtil.kt

@@ -0,0 +1,72 @@
+package ac.dnd.bookkeeping.android.presentation.common.util
+
+import ac.dnd.bookkeeping.android.presentation.R
+import android.Manifest
+import android.annotation.SuppressLint
+import android.app.NotificationManager
+import android.content.Context
+import android.content.Intent
+import android.os.Build
+import android.provider.Settings
+import androidx.annotation.DrawableRes
+import androidx.core.app.NotificationCompat
+import androidx.core.app.NotificationManagerCompat
+import com.gun0912.tedpermission.coroutine.TedPermission
+
+@SuppressLint("MissingPermission")
+suspend fun Context.showNotification(
+    channelId: String,
+    notificationId: Int = 0,
+    title: String? = null,
+    content: String? = null,
+    @DrawableRes icon: Int = R.drawable.ic_launcher,
+    group: String? = null,
+    priority: Int = NotificationCompat.PRIORITY_DEFAULT
+): Boolean {
+    if (!checkPermissionGranted() || !checkNotificationChannelEnabled(channelId)) return false
+
+    val notification = NotificationCompat.Builder(this, channelId)
+        .setSmallIcon(icon)
+        .setContentTitle(title)
+        .setContentText(content)
+        .setPriority(priority)
+        .setGroup(group)
+        .build()
+
+    NotificationManagerCompat.from(this)
+        .notify(notificationId, notification)
+
+    return true
+}
+
+private suspend fun checkPermissionGranted(): Boolean {
+    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+        TedPermission
+            .create()
+            .setPermissions(Manifest.permission.POST_NOTIFICATIONS)
+            .check().isGranted
+    } else {
+        false
+    }
+}
+
+private suspend fun Context.checkNotificationChannelEnabled(
+    id: String
+): Boolean {
+    return if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+        val manager = getSystemService(NotificationManager::class.java)
+        val channel = manager.getNotificationChannel(id) ?: return false
+        val isChannelEnabled = channel.importance != NotificationManager.IMPORTANCE_NONE
+
+        if (!isChannelEnabled) {
+            val intent = Intent(Settings.ACTION_CHANNEL_NOTIFICATION_SETTINGS).apply {
+                putExtra(Settings.EXTRA_APP_PACKAGE, packageName)
+                putExtra(Settings.EXTRA_CHANNEL_ID, id)
+            }
+            startActivity(intent)
+        }
+        return isChannelEnabled
+    } else {
+        true
+    }
+}

presentation/src/main/kotlin/ac/dnd/bookkeeping/android/presentation/ui/main/home/setting/SettingScreen.kt

@@ -1,9 +1,11 @@
 package ac.dnd.bookkeeping.android.presentation.ui.main.home.setting
 
 import ac.dnd.bookkeeping.android.presentation.R
+import ac.dnd.bookkeeping.android.presentation.common.CHANNEL_1
 import ac.dnd.bookkeeping.android.presentation.common.theme.Body1
 import ac.dnd.bookkeeping.android.presentation.common.theme.Negative
 import ac.dnd.bookkeeping.android.presentation.common.util.ErrorObserver
+import ac.dnd.bookkeeping.android.presentation.common.util.showNotification
 import ac.dnd.bookkeeping.android.presentation.common.view.BottomSheetScreen
 import ac.dnd.bookkeeping.android.presentation.common.view.DialogScreen
 import ac.dnd.bookkeeping.android.presentation.common.view.confirm.ConfirmButton
@@ -32,15 +34,18 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.hilt.navigation.compose.hiltViewModel
+import kotlinx.coroutines.launch
 import timber.log.Timber
 
 @Composable
@@ -49,6 +54,8 @@ fun SettingScreen(
     onShowSnackBar: () -> Unit,
     viewModel: SettingViewModel = hiltViewModel()
 ) {
+    val scope = rememberCoroutineScope()
+    val context = LocalContext.current
     Observer(
         appState = appState,
         viewModel = viewModel
@@ -158,6 +165,22 @@ fun SettingScreen(
                     isAddGroupShowing = true
                 }
         )
+        Text(
+            text = "Notification",
+            fontSize = 20.sp,
+            color = Color.Black,
+            modifier = Modifier
+                .padding(vertical = 10.dp)
+                .clickable {
+                    scope.launch {
+                        context.showNotification(
+                            channelId = CHANNEL_1,
+                            title = "title",
+                            content = "content"
+                        )
+                    }
+                }
+        )
     }
 
     if (isSearchRelationShowing) {