From 05fa29759db69a6b71ad9a9377d0a81d00419ae0 Mon Sep 17 00:00:00 2001
From: Simon Marquis <contact@simon-marquis.fr>
Date: Sat, 9 Nov 2024 12:16:17 +0100
Subject: [PATCH] Start SleepAudioService as a foreground service to be able to
 request audio focus

on Android 15: https://developer.android.com/about/versions/15/behavior-changes-15#audio-focus
---
 app/src/main/AndroidManifest.xml              |  5 ++++-
 .../smarquis/sleeptimer/SleepAudioService.kt  | 22 ++++++++++++++++---
 app/src/main/res/values/values.xml            |  4 ++++
 3 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 3e6bb5c..2d6fc27 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,6 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android">
 
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
 
     <application
         android:allowBackup="false"
@@ -28,7 +29,9 @@
                 android:name="android.service.quicksettings.TOGGLEABLE_TILE"
                 android:value="true" />
         </service>
-        <service android:name=".SleepAudioService" />
+        <service
+            android:name=".SleepAudioService"
+            android:foregroundServiceType="shortService" />
     </application>
 
 </manifest>
\ No newline at end of file
diff --git a/app/src/main/java/fr/smarquis/sleeptimer/SleepAudioService.kt b/app/src/main/java/fr/smarquis/sleeptimer/SleepAudioService.kt
index 7d904e5..6e15573 100644
--- a/app/src/main/java/fr/smarquis/sleeptimer/SleepAudioService.kt
+++ b/app/src/main/java/fr/smarquis/sleeptimer/SleepAudioService.kt
@@ -1,9 +1,12 @@
 package fr.smarquis.sleeptimer
 
+import android.app.Notification
+import android.app.Notification.CATEGORY_SERVICE
 import android.app.PendingIntent
 import android.app.PendingIntent.FLAG_IMMUTABLE
 import android.content.Context
 import android.content.Intent
+import android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_SHORT_SERVICE
 import android.media.AudioAttributes
 import android.media.AudioAttributes.CONTENT_TYPE_MUSIC
 import android.media.AudioAttributes.USAGE_MEDIA
@@ -12,6 +15,8 @@ import android.media.AudioManager
 import android.media.AudioManager.ADJUST_LOWER
 import android.media.AudioManager.AUDIOFOCUS_GAIN
 import android.media.AudioManager.STREAM_MUSIC
+import android.os.Build.VERSION.SDK_INT
+import android.os.Build.VERSION_CODES.VANILLA_ICE_CREAM
 import fr.smarquis.sleeptimer.SleepTileService.Companion.requestTileUpdate
 import java.util.concurrent.TimeUnit.SECONDS
 
@@ -23,11 +28,22 @@ class SleepAudioService : android.app.IntentService("SleepAudioService") {
         private val RESTORE_VOLUME_MILLIS = SECONDS.toMillis(2)
 
         private fun intent(context: Context) = Intent(context, SleepAudioService::class.java)
-        fun pendingIntent(context: Context): PendingIntent? = PendingIntent.getService(context, 0, intent(context), FLAG_IMMUTABLE)
+        fun pendingIntent(context: Context): PendingIntent? = PendingIntent.getForegroundService(context, 123, intent(context), FLAG_IMMUTABLE)
+
+        private fun notification(context: Context) = Notification.Builder(context, context.getString(R.string.notification_channel_id))
+            .setCategory(CATEGORY_SERVICE)
+            .setSmallIcon(R.drawable.ic_tile)
+            .build()
+    }
+
+    private fun withForegroundService(block: AudioManager.() -> Unit) {
+        if (SDK_INT >= VANILLA_ICE_CREAM) startForeground(R.id.service_id, notification(applicationContext), FOREGROUND_SERVICE_TYPE_SHORT_SERVICE)
+        getSystemService(AudioManager::class.java)?.run(block)
+        if (SDK_INT >= VANILLA_ICE_CREAM) stopForeground(STOP_FOREGROUND_REMOVE)
     }
 
     @Deprecated("Deprecated in Java")
-    override fun onHandleIntent(intent: Intent?) = getSystemService(AudioManager::class.java)?.run {
+    override fun onHandleIntent(intent: Intent?) = withForegroundService {
         val volumeIndex = getStreamVolume(STREAM_MUSIC)
 
         // fade out volume
@@ -48,6 +64,6 @@ class SleepAudioService : android.app.IntentService("SleepAudioService") {
 
         // update tile
         requestTileUpdate()
-    } ?: Unit
+    }
 
 }
\ No newline at end of file
diff --git a/app/src/main/res/values/values.xml b/app/src/main/res/values/values.xml
index a81d298..e0a0e76 100644
--- a/app/src/main/res/values/values.xml
+++ b/app/src/main/res/values/values.xml
@@ -11,4 +11,8 @@
     <string name="notification_channel_id">sleep_timer</string>
     <!--endregion-->
 
+    <!--region Service-->
+    <item name="service_id" type="id" />
+    <!--endregion-->
+
 </resources>
\ No newline at end of file