fix(android): reschedule alarms on device reboot via BootReceiver

android/app/src/main/AndroidManifest.xml

@@ -42,14 +42,29 @@
                 <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
             </intent-filter>
         </receiver>
+        <receiver
+            android:name=".BootReceiver"
+            android:enabled="true"
+            android:exported="false"
+            android:directBootAware="true">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED"/>
+                <action android:name="android.intent.action.LOCKED_BOOT_COMPLETED"/>
+                <action android:name="android.intent.action.MY_PACKAGE_REPLACED"/>
+                <action android:name="android.intent.action.QUICKBOOT_POWERON"/>
+                <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
+            </intent-filter>
+        </receiver>
         <receiver
             android:name=".AlarmReceiver"
             android:enabled="true"
-            android:exported="false" />
+            android:exported="false"
+            android:directBootAware="true" />
         <service
             android:name=".AlarmPlaybackService"
             android:enabled="true"
             android:exported="false"
+            android:directBootAware="true"
             android:foregroundServiceType="mediaPlayback" />
         <meta-data
             android:name="flutterEmbedding"

android/app/src/main/kotlin/dev/kashifkhan/drawbell/AlarmPlaybackService.kt

@@ -77,21 +77,35 @@ class AlarmPlaybackService : Service() {
     private fun startAudio(sound: String) {
         stopAudioAndVibration()
 
-        val uri = parseSoundUri(sound)
-            ?: RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM)
-            ?: RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION)
-
-        mediaPlayer = MediaPlayer().apply {
-            setAudioAttributes(
-                AudioAttributes.Builder()
-                    .setUsage(AudioAttributes.USAGE_ALARM)
-                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
-                    .build(),
-            )
-            isLooping = true
-            setDataSource(this@AlarmPlaybackService, uri)
-            prepare()
-            start()
+        val candidateUri = parseSoundUri(sound)
+        val fallbackUri =
+            RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM)
+                ?: RingtoneManager.getDefaultUri(
+                    RingtoneManager.TYPE_NOTIFICATION,
+                )
+
+        val urisToTry = listOfNotNull(candidateUri, fallbackUri).distinct()
+        for (uri in urisToTry) {
+            try {
+                mediaPlayer = MediaPlayer().apply {
+                    setAudioAttributes(
+                        AudioAttributes.Builder()
+                            .setUsage(AudioAttributes.USAGE_ALARM)
+                            .setContentType(
+                                AudioAttributes.CONTENT_TYPE_SONIFICATION,
+                            )
+                            .build(),
+                    )
+                    isLooping = true
+                    setDataSource(this@AlarmPlaybackService, uri)
+                    prepare()
+                    start()
+                }
+                return
+            } catch (_: Exception) {
+                mediaPlayer?.release()
+                mediaPlayer = null
+            }
         }
     }
 

android/app/src/main/kotlin/dev/kashifkhan/drawbell/BootReceiver.kt

@@ -0,0 +1,72 @@
+package dev.kashifkhan.drawbell
+
+import android.content.BroadcastReceiver
+import android.content.Context
+import android.content.Intent
+
+class BootReceiver : BroadcastReceiver() {
+    private companion object {
+        private const val ACTION_QUICKBOOT_POWERON =
+            "android.intent.action.QUICKBOOT_POWERON"
+        private const val ACTION_HTC_QUICKBOOT_POWERON =
+            "com.htc.intent.action.QUICKBOOT_POWERON"
+        private const val ACTION_MY_PACKAGE_REPLACED =
+            "android.intent.action.MY_PACKAGE_REPLACED"
+    }
+
+    override fun onReceive(context: Context, intent: Intent) {
+        val action = intent.action ?: return
+        if (
+            action != Intent.ACTION_BOOT_COMPLETED &&
+            action != Intent.ACTION_LOCKED_BOOT_COMPLETED &&
+            action != ACTION_MY_PACKAGE_REPLACED &&
+            action != ACTION_QUICKBOOT_POWERON &&
+            action != ACTION_HTC_QUICKBOOT_POWERON
+        ) return
+
+        val isLockedBoot = action == Intent.ACTION_LOCKED_BOOT_COMPLETED
+        val now = System.currentTimeMillis()
+        val ids = NativeAlarmStore.getAlarmIds(context)
+        for (id in ids) {
+            val entry = NativeAlarmStore.getEntry(
+                context = context,
+                id = id,
+                allowLegacyMigration = !isLockedBoot,
+            ) ?: continue
+            var entryToSchedule = entry
+            if (entryToSchedule.scheduledTimeMillis <= now) {
+                val rebuiltFromStored =
+                    NativeAlarmStore.rebuildFromStoredMetadata(entryToSchedule)
+                if (rebuiltFromStored != null && rebuiltFromStored.scheduledTimeMillis > now) {
+                    entryToSchedule = rebuiltFromStored
+                } else {
+                    if (isLockedBoot) {
+                        continue
+                    }
+                    val rebuilt = NativeAlarmStore.rebuildEntryFromFlutterPrefs(
+                        context = context,
+                        id = id,
+                        payload = entryToSchedule.payload,
+                    ) ?: continue
+                    if (rebuilt.scheduledTimeMillis <= now) {
+                        continue
+                    }
+                    entryToSchedule = rebuilt
+                }
+            }
+            NativeAlarmScheduler.schedule(
+                context = context,
+                id = entryToSchedule.id,
+                title = entryToSchedule.title,
+                body = entryToSchedule.body,
+                payload = entryToSchedule.payload,
+                sound = entryToSchedule.sound,
+                scheduledTimeMillis = entryToSchedule.scheduledTimeMillis,
+                hour = entryToSchedule.hour,
+                minute = entryToSchedule.minute,
+                repeatDays = entryToSchedule.repeatDays,
+                scheduledDate = entryToSchedule.scheduledDate,
+            )
+        }
+    }
+}

android/app/src/main/kotlin/dev/kashifkhan/drawbell/MainActivity.kt

@@ -172,6 +172,19 @@ class MainActivity : FlutterActivity() {
                 val body = args["body"] as? String ?: "Alarm — draw to dismiss!"
                 val payload = args["payload"] as? String ?: ""
                 val sound = args["sound"] as? String ?: "default"
+                val hour = (args["hour"] as? Number)?.toInt() ?: run {
+                    result.error("INVALID_ARGS", "Missing hour", null)
+                    return
+                }
+                val minute = (args["minute"] as? Number)?.toInt() ?: run {
+                    result.error("INVALID_ARGS", "Missing minute", null)
+                    return
+                }
+                val repeatDays =
+                    (args["repeatDays"] as? List<*>)
+                        ?.mapNotNull { (it as? Number)?.toInt() }
+                        ?: emptyList()
+                val scheduledDate = args["scheduledDate"] as? String
                 val scheduledTimeMillis =
                     (args["scheduledTimeMillis"] as? Number)?.toLong() ?: run {
                         result.error("INVALID_ARGS", "Missing scheduled time", null)
@@ -185,6 +198,10 @@ class MainActivity : FlutterActivity() {
                     payload = payload,
                     sound = sound,
                     scheduledTimeMillis = scheduledTimeMillis,
+                    hour = hour,
+                    minute = minute,
+                    repeatDays = repeatDays,
+                    scheduledDate = scheduledDate,
                 )
                 result.success(null)
             }

android/app/src/main/kotlin/dev/kashifkhan/drawbell/NativeAlarmScheduler.kt

@@ -16,6 +16,10 @@ object NativeAlarmScheduler {
         payload: String,
         sound: String,
         scheduledTimeMillis: Long,
+        hour: Int,
+        minute: Int,
+        repeatDays: List<Int>,
+        scheduledDate: String?,
     ) {
         val alarmManager =
             context.getSystemService(Context.ALARM_SERVICE) as AlarmManager
@@ -36,7 +40,19 @@ object NativeAlarmScheduler {
             PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE,
         )
 
-        NativeAlarmStore.putAlarm(context, id, payload)
+        NativeAlarmStore.putAlarm(
+            context = context,
+            id = id,
+            title = title,
+            body = body,
+            payload = payload,
+            sound = sound,
+            scheduledTimeMillis = scheduledTimeMillis,
+            hour = hour,
+            minute = minute,
+            repeatDays = repeatDays,
+            scheduledDate = scheduledDate,
+        )
 
         alarmManager.setExactAndAllowWhileIdle(
             AlarmManager.RTC_WAKEUP,