fix(android): let the caller decide whether a repost alerts

android/src/main/java/app/tauri/notification/Notification.kt

@@ -66,6 +66,7 @@ class Notification {
   var visibility: Int? = null
   var number: Int? = null
   var silent: Boolean? = null
+  var onlyAlertOnce: Boolean? = null
 
   fun getSound(context: Context, defaultSound: Int): String? {
     var soundPath: String? = null

android/src/main/java/app/tauri/notification/TauriNotificationManager.kt

@@ -116,7 +116,6 @@ class TauriNotificationManager(
   }
 
   private fun trigger(notificationManager: NotificationManagerCompat, notification: Notification): Int {
-    dismissVisibleNotification(notification.id)
     cancelTimerForNotification(notification.id)
     buildNotification(notificationManager, notification)
 
@@ -203,7 +202,7 @@ class TauriNotificationManager(
       }
     }
     mBuilder.setVisibility(notification.visibility ?: NotificationCompat.VISIBILITY_PRIVATE)
-    mBuilder.setOnlyAlertOnce(true)
+    mBuilder.setOnlyAlertOnce(notification.onlyAlertOnce ?: true)
     mBuilder.setSmallIcon(notification.getSmallIcon(context, getDefaultSmallIcon(context)))
     mBuilder.setLargeIcon(notification.getLargeIcon(context))
     val iconColor = notification.getIconColor(config?.iconColor ?: "")

android/src/main/java/app/tauri/notification/UnifiedPushNotifier.kt

@@ -125,7 +125,7 @@ object UnifiedPushNotifier {
             .setContentTitle(title)
             .setContentText(body)
             .setAutoCancel(true)
-            .setOnlyAlertOnce(true)
+            .setOnlyAlertOnce(silent)
             .setPriority(NotificationCompat.PRIORITY_HIGH)
             .setGroup(GROUP_KEY)
             .setContentIntent(

src/lib.rs

@@ -300,6 +300,13 @@ impl<R: Runtime> NotificationsBuilder<R> {
         self.data.silent = true;
         self
     }
+
+    /// Whether replacing a visible notification alerts again. Android only, `true` when unset.
+    #[must_use]
+    pub const fn only_alert_once(mut self, only_alert_once: bool) -> Self {
+        self.data.only_alert_once = Some(only_alert_once);
+        self
+    }
 }
 
 /// Extensions to [`tauri::App`], [`tauri::AppHandle`], [`tauri::WebviewWindow`], [`tauri::Webview`] and [`tauri::Window`] to access the notification APIs.

src/models.rs

@@ -253,6 +253,7 @@ pub struct NotificationData {
     pub(crate) auto_cancel: bool,
     #[serde(default)]
     pub(crate) silent: bool,
+    pub(crate) only_alert_once: Option<bool>,
 }
 
 fn default_id() -> i32 {
@@ -284,6 +285,7 @@ impl Default for NotificationData {
             ongoing: false,
             auto_cancel: false,
             silent: false,
+            only_alert_once: None,
         }
     }
 }
@@ -806,6 +808,17 @@ mod tests {
         assert!(data.extra.is_empty());
     }
 
+    #[test]
+    fn test_only_alert_once_uses_the_android_key() {
+        let data = NotificationData {
+            only_alert_once: Some(false),
+            ..Default::default()
+        };
+        let json = serde_json::to_string(&data).expect("Failed to serialize notification data");
+        assert!(json.contains("\"onlyAlertOnce\":false"));
+        assert!(NotificationData::default().only_alert_once.is_none());
+    }
+
     #[test]
     fn test_notification_data_serialization() {
         let data = NotificationData {