add request post notification permission

.idea/deploymentTargetDropDown.xml

@@ -3,10 +3,20 @@
   <component name="deploymentTargetDropDown">
     <value>
       <entry key="MainActivity">
-        <State />
-      </entry>
-      <entry key="TimerScreenPreview">
-        <State />
+        <State>
+          <targetSelectedWithDropDown>
+            <Target>
+              <type value="QUICK_BOOT_TARGET" />
+              <deviceKey>
+                <Key>
+                  <type value="VIRTUAL_DEVICE_PATH" />
+                  <value value="C:\Users\emirg\.android\avd\Medium_Phone_API_34.avd" />
+                </Key>
+              </deviceKey>
+            </Target>
+          </targetSelectedWithDropDown>
+          <timeTargetWasSelectedWithDropDown value="2024-08-28T18:45:26.330794200Z" />
+        </State>
       </entry>
       <entry key="app">
         <State />

app/src/main/AndroidManifest.xml

@@ -2,7 +2,10 @@
 <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:name=".MyAppChannel"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"

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

@@ -11,22 +11,59 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import com.example.myapplication.UI_Components.main_app
 import com.example.myapplication.ui.theme.MyApplicationTheme
+import android.Manifest
+import android.content.Context
+import android.content.pm.PackageManager
+import android.os.Build
+import androidx.activity.compose.rememberLauncherForActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.compose.foundation.layout.Box
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.platform.LocalContext
+import androidx.core.content.ContextCompat
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
         setContent {
             MyApplicationTheme {
-                // A surface container using the 'background' color from the theme
                 Surface(
                     modifier = Modifier
                         .fillMaxSize()
                         .padding(10.dp),
                     color = MaterialTheme.colorScheme.background
                 ) {
+                    val context = LocalContext.current
+                    var hasPermission by remember { mutableStateOf(hasNotificationPermission(context)) }
+                    val permissionLauncher = rememberLauncherForActivityResult(
+                        contract = ActivityResultContracts.RequestPermission(),
+                        onResult = { isGranted -> hasPermission = isGranted }
+                    )
+
+                    LaunchedEffect(key1 = hasPermission) {
+                        if (!hasPermission && Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+                            permissionLauncher.launch(Manifest.permission.POST_NOTIFICATIONS)
+                        }
+                    }
+
                     main_app()
                 }
             }
         }
     }
+
+    private fun hasNotificationPermission(context: Context): Boolean {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            return ContextCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) == PackageManager.PERMISSION_GRANTED
+        }
+
+        return true
+    }
 }
\ No newline at end of file

app/src/main/java/com/example/myapplication/MyAppChannel.kt

+package com.example.myapplication
+
+import android.app.Application
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.content.Context
+import android.os.Build
+
+class MyAppChannel: Application() {
+    override fun onCreate() {
+        super.onCreate()
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            val channel = NotificationChannel(
+                "channel_id", "myChannel", NotificationManager.IMPORTANCE_DEFAULT
+            )
+
+            val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
+            manager.createNotificationChannel(channel)
+        }
+    }
+}
\ No newline at end of file