Not receiving callbacks in 'Refreshing and Maintaining Your App Using Background Tasks'

[jithinmadathil07]

Regarding - https://github.com/xamarin/ios-samples/tree/master/ios13/RefreshingAndMaintainingYourAppUsingBackgroundTasks

I have tried to run xamarin 'Refreshing and Maintaining Your App Using Background Tasks' sample on iphone7(iOS 13.2) using VS2019 for mac. But I am not getting any callback for BGAppRefreshTask or BGProcessingTask in background.

I have enabled UIbackground modes in Info.plist(fetch and processing).
Added BGTaskSchedulerPermittedIdentifiers key and uniques task ids to Info.plist
Tried diffrent EarliestBeginDate intervals(5,15,30 minutes).Used local notification to show the callback.

I tried with native swift sample code also.There I was able to receive the callbacks.

So do I need to add anything else for getting callback in xamarin?

Configuration
OS:Catalina 10.15
iphone version:iphone 7(iOS 13.2)

[chamons]

I believe I have the background tasks firing with this change:

https://github.com/xamarin/ios-samples/pull/393/files

which is noted in the readme instructions as something you need to do.

[sandeep-eroad]

This is not working for me even in a small test app. Have a look at the attached sample app.
TestApp.zip

[comfr3ak]

Having a similar problem with the task never firing. Have followed this precisely line for line and regardless of how I treat the iPad, the task will never fire. I have assured all the settings are enabled, Background Refresh is enabled on the device for my app, the info.plist keys are added. Never fires. Running iPad Pro with iOS 14.

[rolfbjarne]

Microsoft support for Xamarin will end on May 1, 2024 for all Xamarin SDKs. In preparation for this, all issues and PRs in this repository are being closed.