temporary solution to notification when app is in background

app/src/main/java/be/ugent/sel/studeez/activities/MainActivity.kt

@@ -1,5 +1,8 @@
 package be.ugent.sel.studeez.activities
 
+import android.media.MediaPlayer
+import android.media.RingtoneManager
+import android.net.Uri
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
@@ -22,7 +25,13 @@ var onTimerInvisible: Job? = null
 
 @AndroidEntryPoint
 class MainActivity : ComponentActivity() {
+
+    private var mediaPlayer: MediaPlayer? = null
     override fun onCreate(savedInstanceState: Bundle?) {
+        val uri: Uri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
+        mediaPlayer = MediaPlayer.create(this, uri)
+        mediaPlayer?.isLooping = false
+
         super.onCreate(savedInstanceState)
         setContent {
             StudeezTheme {
@@ -37,19 +46,24 @@ class MainActivity : ComponentActivity() {
         }
     }
 
-
-
     override fun onStop() {
         onTimerInvisible = lifecycleScope.launch {
-            InvisibleSessionManager.updateTimer()
+            InvisibleSessionManager.updateTimer(mediaPlayer)
         }
         super.onStop()
     }
 
     override fun onStart() {
+        mediaPlayer?.stop()
         onTimerInvisible?.cancel()
         super.onStart()
     }
+
+    override fun onDestroy() {
+        mediaPlayer?.stop()
+        mediaPlayer?.release()
+        super.onDestroy()
+    }
 }
 
 @Composable

app/src/main/java/be/ugent/sel/studeez/screens/session/SessionScreen.kt

@@ -31,12 +31,8 @@ import androidx.hilt.navigation.compose.hiltViewModel
 import be.ugent.sel.studeez.R
 import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalPomodoroTimer
 import be.ugent.sel.studeez.data.local.models.timer_functional.FunctionalTimer.StudyState
-import be.ugent.sel.studeez.data.local.models.timer_functional.Time
 import be.ugent.sel.studeez.resources
 import kotlinx.coroutines.delay
-import java.time.LocalDateTime
-import java.time.ZoneId
-import java.util.*
 import kotlin.time.Duration.Companion.seconds
 
 @Composable
@@ -50,6 +46,7 @@ fun SessionScreen(
     val mediaplayer = MediaPlayer.create(context, uri)
     mediaplayer.isLooping = false
 
+    // evt mediaplayer meegeven vanaf hier als reserve oplossing
     InvisibleSessionManager.setNewViewModel(viewModel = viewModel)
 
     Column(
@@ -88,11 +85,6 @@ fun SessionScreen(
     }
 }
 
-private operator fun Time.minus(time: Time): Time {
-    return Time(this.time - time.time)
-
-}
-
 @Composable
 private fun Timer(viewModel: SessionViewModel = hiltViewModel(), mediaplayer: MediaPlayer) {
     var tikker by remember { mutableStateOf(false) }
@@ -169,11 +161,14 @@ object InvisibleSessionManager {
         this.viewModel = viewModel
     }
 
-    suspend fun updateTimer() {
+    suspend fun updateTimer(mediaPlayer: MediaPlayer?) {
         if (isSession) {
             while (true) {
                 delay(1.seconds)
                 viewModel.getTimer().tick()
+                if (viewModel.getTimer().hasCurrentCountdownEnded() && !viewModel.getTimer().hasEnded()) {
+                    mediaPlayer?.start()
+                }
             }
         }
     }