Fixed deep linking issue on background app

Notification permissions on Android 12+

app/src/main/AndroidManifest.xml

@@ -11,6 +11,7 @@ SPDX-License-Identifier: CC0-1.0
 	package="it.bz.noi.community">
 
 	<uses-permission android:name="android.permission.INTERNET" />
+	<uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
 	<queries>
 		<intent>
 			<action android:name="android.intent.action.DIAL" />

app/src/main/java/it/bz/noi/community/MainActivity.kt

@@ -5,11 +5,15 @@
 package it.bz.noi.community
 
 import android.content.Intent
+import android.content.pm.PackageManager
+import android.net.Uri
+import android.os.Build
 import android.os.Bundle
 import android.os.PersistableBundle
 import android.util.Log
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
 import androidx.core.view.isVisible
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.asLiveData
@@ -45,6 +49,17 @@ class MainActivity : AppCompatActivity() {
 
 	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
+
+		if (intent.hasExtra("deep_link")) {
+			val deepLink = intent.getStringExtra("deep_link")
+			if (deepLink != null) {
+				val uri = Uri.parse(deepLink)
+				startActivity(Intent(Intent.ACTION_VIEW).apply { data = uri })
+				finish()
+				return
+			}
+		}
+
 		window.navigationBarColor = resources.getColor(R.color.background_color, theme)
 
 		binding = ActivityMainBinding.inflate(layoutInflater)
@@ -144,6 +159,38 @@ class MainActivity : AppCompatActivity() {
 			MessagingService.registrationToken()
 		}
 		subscribeToNewsTopic(Utils.getPreferredNoiNewsTopic())
+
+		checkNotificationPermission()
+	}
+
+	/**
+	 * Very crude solution to quick add notification permission.
+	 */
+	private fun checkNotificationPermission() {
+		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+			if (ActivityCompat.checkSelfPermission(
+					this,
+					android.Manifest.permission.POST_NOTIFICATIONS
+				) != PackageManager.PERMISSION_GRANTED
+			) {
+				ActivityCompat.requestPermissions(
+					this,
+					arrayOf(android.Manifest.permission.POST_NOTIFICATIONS),
+					0
+				)
+			}
+		}
+	}
+
+	override fun onRequestPermissionsResult(
+		requestCode: Int,
+		permissions: Array<out String>,
+		grantResults: IntArray
+	) {
+		super.onRequestPermissionsResult(requestCode, permissions, grantResults)
+		if (requestCode == 0 && grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+			Log.d(TAG, "Notification permission granted")
+		}
 	}
 
 	private fun subscribeToNewsTopic(preferredNewsTopic: String) {

app/src/main/java/it/bz/noi/community/SplashScreenActivity.kt

@@ -83,10 +83,20 @@ class SplashScreenActivity : AppCompatActivity() {
 
 	private fun goToMainActivity() {
 		if (isFinishing) return
-		startActivity(Intent(this, MainActivity::class.java).apply {
-			putExtra(MainActivity.EXTRA_SHOW_WELCOME, runBlocking { !getWelcomeUnderstood() })
-		})
-		finish()
+		if (intent.hasExtra("deep_link")) {
+			val deepLink = Uri.parse(intent.getStringExtra("deep_link"))
+			startActivity(Intent(this, MainActivity::class.java).apply {
+				setData(deepLink)
+				flags = Intent.FLAG_ACTIVITY_NEW_TASK
+				putExtra(MainActivity.EXTRA_SHOW_WELCOME, false)
+			})
+			finish()
+		} else {
+			startActivity(Intent(this, MainActivity::class.java).apply {
+				putExtra(MainActivity.EXTRA_SHOW_WELCOME, runBlocking { !getWelcomeUnderstood() })
+			})
+			finish()
+		}
 	}
 
 	private fun goToOnboardingActivity() {

app/src/main/java/it/bz/noi/community/notifications/MessagingService.kt

@@ -20,10 +20,12 @@ import com.google.firebase.messaging.FirebaseMessaging
 import com.google.firebase.messaging.FirebaseMessagingService
 import com.google.firebase.messaging.RemoteMessage
 import com.google.firebase.messaging.ktx.messaging
+import it.bz.noi.community.MainActivity
 import it.bz.noi.community.R
 import it.bz.noi.community.ui.NewsTickerFlow
 import kotlin.random.Random
 
+
 class MessagingService : FirebaseMessagingService() {
 
 	override fun onNewToken(token: String) {
@@ -41,43 +43,63 @@ class MessagingService : FirebaseMessagingService() {
 		}
 	}
 
-	private fun showNotificationBanner(message: CharSequence, title: CharSequence, link: Uri) {
-		with (NotificationManagerCompat.from(this)) {
-			val id = Random.nextInt()
+	companion object {
+		private const val TAG = "MessagingService"
+		private const val CHANNEL_ID = "newsChannel"
 
-			val newsOrEventDetailsPendingIntent = PendingIntent.getActivity(
-				applicationContext,
-				0,
-				Intent(Intent.ACTION_VIEW).apply { data = link },
-				PendingIntent.FLAG_IMMUTABLE
+		fun Context.showNotification() {
+			showNotificationBanner(
+				"Test",
+				"Test",
+				Uri.parse("noi-community://it.bz.noi.community/eventDetails/2343242")
 			)
+		}
 
-			val notification = NotificationCompat.Builder(this@MessagingService, CHANNEL_ID)
-				.setSmallIcon(R.drawable.ic_notification)
-				.setContentTitle(title)
-				.setContentText(message)
-				.setAutoCancel(true)
-				.setContentIntent(newsOrEventDetailsPendingIntent)
-				.build()
-
-			try {
-				notify(id, notification)
-			} catch (e: SecurityException) {
-				Log.e(TAG, "No permission granted", e)
+		private fun Context.showNotificationBanner(
+			message: CharSequence,
+			title: CharSequence,
+			link: Uri
+		) {
+			with(NotificationManagerCompat.from(this)) {
+				val id = Random.nextInt()
+
+				val newsOrEventDetailsPendingIntent = PendingIntent.getActivity(
+					applicationContext,
+					0,
+					Intent(this@showNotificationBanner, MainActivity::class.java).apply {
+						data = link
+						flags = Intent.FLAG_ACTIVITY_NEW_TASK
+					},
+					PendingIntent.FLAG_IMMUTABLE
+				)
+
+				val notification =
+					NotificationCompat.Builder(this@showNotificationBanner, CHANNEL_ID)
+						.setSmallIcon(R.drawable.ic_notification)
+						.setContentTitle(title)
+						.setContentText(message)
+						.setAutoCancel(true)
+						.setContentIntent(newsOrEventDetailsPendingIntent)
+						.build()
+
+				try {
+					notify(id, notification)
+				} catch (e: SecurityException) {
+					Log.e(TAG, "No permission granted", e)
+				}
 			}
 		}
-	}
-
-	companion object {
-		private const val TAG = "MessagingService"
-		private const val CHANNEL_ID = "newsChannel"
 
 		@JvmStatic
 		fun createChannelIfNeeded(context: Context) {
 			if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-				with (NotificationManagerCompat.from(context)) {
+				with(NotificationManagerCompat.from(context)) {
 					val channelName = context.getString(R.string.news_notification_channel_name)
-					val channel = NotificationChannel(CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_HIGH)
+					val channel = NotificationChannel(
+						CHANNEL_ID,
+						channelName,
+						NotificationManager.IMPORTANCE_HIGH
+					)
 					createNotificationChannel(channel)
 				}
 			}
@@ -93,7 +115,7 @@ class MessagingService : FirebaseMessagingService() {
 				// Get new FCM registration token
 				val token = task.result
 
-				val msg ="FCM registration token: $token"
+				val msg = "FCM registration token: $token"
 				Log.d(TAG, msg)
 			})
 		}

app/src/main/java/it/bz/noi/community/ui/eventDetails/EventDetailsFragment.kt

@@ -131,7 +131,8 @@ class EventDetailsFragment : Fragment(), EventClickListener {
 					val events = it.data
 					if (!events.isNullOrEmpty()) {
 						allEvents = events as ArrayList<EventsResponse.Event>
-						selectedEvent = events[args.eventIndex]
+						selectedEvent = events.firstOrNull { event -> event.eventId == args.eventId }
+							?: events.first()
 
 						(requireActivity() as AppCompatActivity).supportActionBar?.title =
 							getEventName(selectedEvent)
@@ -362,8 +363,7 @@ class EventDetailsFragment : Fragment(), EventClickListener {
 
 		findNavController().navigate(
 			EventDetailsFragmentDirections.actionEventDetailsFragmentSelf(
-				null,
-				allEvents.indexOf(event)
+				event.eventId,
 			),
 			extras
 		)

app/src/main/java/it/bz/noi/community/ui/today/events/EventsFragment.kt

@@ -194,8 +194,7 @@ class EventsFragment : Fragment(), EventClickListener, TimeFilterClickListener {
 		)
 		findNavController().navigate(
 			TodayFragmentDirections.actionNavigationTodayToEventDetailsFragment(
-				null,
-				todayViewModel.events.indexOf(event)
+				event.eventId,
 			),
 			extras
 		)

app/src/main/res/navigation/mobile_navigation.xml

@@ -72,10 +72,6 @@ SPDX-License-Identifier: CC0-1.0
 			android:name="eventId"
 			app:argType="string"
 			app:nullable="true" />
-		<argument
-			android:name="eventIndex"
-			app:argType="integer"
-			app:nullable="false"/>
 		<action
             android:id="@+id/action_eventDetailsFragment_self"
             app:destination="@id/eventDetailsFragment" />