Missing AdvertisementServiceData in ScanResult.AdvertisementData.ServiceData on iOS

[eantunes1980]

Hi,
I have a hardware from a customer that is serving the ServiceData. That works on Android. With the same code on iPhone the Object is always null. We also tested on a separate swift project to know if it is a hardware problem and it works there. So it seems to be a problem in this lib. Is it a bug or do I have to do some work for this to work?

[aritchie]

This isn't a good place for issues since it doesn't give enough context. You can check here and see I don't do a lot of

shiny/src/Shiny.BluetoothLE/Platforms/Apple/AdvertisementData.cs

Line 43 in bd8912c

this.serviceData = this.GetLazy(CBAdvertisement.DataServiceDataKey, item =>

with ad data.

[eantunes1980]

Thank you for now. We will try to debug and report the results

[eantunes1980]

We are using .net8. in our Project. I found out that with .net9 it works after the second run. After testing with .net9 it keep works on .net8. On two from three tested iPhones. Do you see any explanation for that? Could it be that .net9 is setting up anything in the bluetooth driver from the OS? The strange thing is that it works perfectly with swift.

[aritchie]

Like I said, there is nothing special about the retrieval and there shouldn't be any difference whatsoever between net8 & net9. Service data, I believe, is part of the scan response and thus may be null on the first reception of the scan result. I'm not sure what you mean by "second run". iOS does tend to cache scan responses, so that may be part of seeing the data in the "second run"