MAUI 8 release mode android: notification is not pushed in 10 seconds from now

[RpDoc-Christian]

Hello,

when I want to push a local notification in android in 10 seconds from now it will be delivered and work fine in debug builds but not in release builds. In release the local notification will not be pushed.

A local notification witch shall be delivered directly work in both build conditions.

To Reproduce
Steps to reproduce the behavior:

Build and start the sample project in debug mode
Push button to get notification directly
Notification will be delivered
Push button to get notification in 10 seconds
Notification will be delivered
Build and start sample project in release mode
Push button to get notification directly
Notification will be delivered
Push button to get notification in 10 seconds
Notification will NOT be delivered

Expected behavior
The notification shall be delivered after 10 seconds in release mode too, not only in debug

Platform (please complete the following information):

OS: Android 34

Smartphone (please complete the following information):

Device: Google Pixel 6a
OS: Android
Version 14

A sample project is attached.

Project is .NET MAUI 8 in Visual Studio 2022 Version 17.10.5 and Plugin.LocalNotification Version 11.1.4

LocalPushNotificationTest.zip

[NaZeRhal]

we have the same issue. Notifications are scheduled but not displayed at certain time in release mode. For debug mode everything works correctly. We see the following log in logcat:
SendNotification: Notification {notificationId} has no NotifyTime
It seems to go from here:
https://github.com/thudugala/Plugin.LocalNotification/blob/master/Source/Plugin.LocalNotification/Platforms/Android/ScheduledAlarmReceiver.cs#L90
But we surely pass notifyTime to the request and it works in debug mode.

Any updates here?

[Kaayo]

Hi, I have a similar situation, also on Android, where my notifications simply stop being sent, even though they exist.

I could be wrong, but maybe this topic makes some sense about the "Wake Lock" functionality on Android

Link: https://stackoverflow.com/questions/75892669/xamarin-maui-app-still-goes-to-sleep-even-though-told-not-to

[IGC-P]

I have the same problem, everything works fine on debug, but on release stops working for android. Has anybody found a solution?

[thudugala]

we have the same issue. Notifications are scheduled but not displayed at certain time in release mode. For debug mode everything works correctly. We see the following log in logcat: SendNotification: Notification {notificationId} has no NotifyTime It seems to go from here: https://github.com/thudugala/Plugin.LocalNotification/blob/master/Source/Plugin.LocalNotification/Platforms/Android/ScheduledAlarmReceiver.cs#L90 But we surely pass notifyTime to the request and it works in debug mode.

Any updates here?

Can you print the NotificationRepository.Current.GetPendingList() at release mode and see what is missing?

It could be an issue with System.Text.Json.Serialization at release mode due to Trimming

#333

[IGC-P]

I am using version 10.1.8 and as suggested on #333 , for me it started working on android release mode by adding the following on ProjectName.csproj
<ItemGroup> <TrimmerRootAssembly Include="Plugin.LocalNotification" RootMode="library"/> </ItemGroup>

[RpDoc-Christian]

@IGC-P
I tested your workaround here in my sample project.

It works now.

But it would be nice if this will fixed in a normal release.