Notifications: deep linking

app/src/main/AndroidManifest.xml

@@ -27,10 +27,14 @@
             android:theme="@style/Theme.KordophoneDroid">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
-
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
 
+            <intent-filter>
+                <!-- Message List Deep Link -->
+                <data android:scheme="kordophone" android:host="messages" />
+            </intent-filter>
+
             <meta-data
                 android:name="android.app.lib_name"
                 android:value="" />

app/src/main/java/net/buzzert/kordophonedroid/UpdateMonitorService.kt

@@ -17,14 +17,19 @@ import android.util.Log
 import androidx.core.app.ActivityCompat
 import androidx.core.app.NotificationCompat
 import androidx.core.app.NotificationManagerCompat
+import androidx.core.net.toUri
+import androidx.navigation.NavDeepLinkBuilder
+import androidx.navigation.NavDeepLinkRequest
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.launch
 import net.buzzert.kordophone.backend.model.Message
 import net.buzzert.kordophone.backend.server.ChatRepository
+import net.buzzert.kordophonedroid.ui.Destination
 import javax.inject.Inject
 
 const val PUSH_CHANNEL_ID = "net.buzzert.kordophone.persistentNotification"
@@ -38,6 +43,7 @@ class UpdateMonitorService: Service()
     @Inject lateinit var chatRepository: ChatRepository
 
     private var newMessageID: Int = 0
+    private var watchJob: Job? = null
     private val job = SupervisorJob()
     private val scope = CoroutineScope(Dispatchers.IO + job)
 
@@ -53,7 +59,18 @@ class UpdateMonitorService: Service()
     override fun onCreate() {
         super.onCreate()
 
+        Log.v(UPDATER_LOG, "UpdateMonitor onCreate: Begin watching for updates.")
+
         createNotificationChannel(NEW_MESSAGE_CHANNEL_ID, "New Messages")
+
+        // Connect to monitor
+        chatRepository.beginWatchingForUpdates(scope)
+
+        // Connect to new message flow for notifications
+        watchJob?.cancel()
+        watchJob = scope.launch {
+            chatRepository.newMessages.collectLatest(::onReceiveNewMessage)
+        }
     }
 
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
@@ -77,14 +94,6 @@ class UpdateMonitorService: Service()
 
         startForeground(5738, notification)
 
-        // Connect to monitor
-        chatRepository.beginWatchingForUpdates(scope)
-
-        // Connect to new message flow for notifications
-        scope.launch {
-            chatRepository.newMessages.collectLatest(::onReceiveNewMessage)
-        }
-
         // Restart if we get killed
         return START_STICKY
     }
@@ -98,25 +107,39 @@ class UpdateMonitorService: Service()
 
         if (message.conversation.unreadCount == 0) {
             // Not unread.
+            Log.v(UPDATER_LOG, "Ignoring read message.")
             return
         }
 
         if (message.sender == null) {
             // From me.
+            Log.v(UPDATER_LOG, "Ignoring message from me.")
             return
         }
 
         if (message.conversation.isGroupChat) {
             // For now, since these can be noisy and there's no UI for changing it, ignore group chats.
+            Log.v(UPDATER_LOG, "Ignoring group chat message.")
             return
         }
 
+        val guid = message.conversation.guid
+        val deepLinkIntent = Intent(
+            Intent.ACTION_VIEW,
+            "kordophone://messages/$guid".toUri(),
+            this,
+            MainActivity::class.java
+        )
+
+        val pendingIntent = PendingIntent.getActivity(this, 0, deepLinkIntent, PendingIntent.FLAG_IMMUTABLE)
+
         val groupId = message.conversation.guid
         val notification = NotificationCompat.Builder(this, NEW_MESSAGE_CHANNEL_ID)
             .setContentTitle(message.sender)
             .setContentText(message.text)
             .setSmallIcon(R.drawable.stat_notify_chat)
             .setPriority(NotificationCompat.PRIORITY_DEFAULT)
+            .setContentIntent(pendingIntent)
             .setGroup(groupId)
             .build()
 

app/src/main/java/net/buzzert/kordophonedroid/ui/KordophoneApp.kt

@@ -17,6 +17,7 @@ import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
+import androidx.navigation.navDeepLink
 import kotlinx.coroutines.flow.collectLatest
 import net.buzzert.kordophone.backend.server.ChatRepository
 
@@ -77,11 +78,14 @@ fun KordophoneApp(
                 navController = navController,
                 startDestination = Destination.ConversationList.route,
             ) {
-                composable(route = Destination.ConversationList.route) {
+                composable(Destination.ConversationList.route) {
                     ConversationListScreen()
                 }
 
-                composable(Destination.MessageList.route) {
+                composable(
+                    route = Destination.MessageList.route,
+                    deepLinks = listOf(navDeepLink { uriPattern = "kordophone://messages/{id}" })
+                ) {
                     val conversationID = it.arguments?.getString("id")!!
                     MessageListScreen(conversationGUID = conversationID)
                 }