How to get device token in iOS 13 with Xamarin?

Question

Our RegisteredForRemoteNotifications code broke because the token was retrieved with:

deviceToken.ToString().Trim('<').Trim('>').Replace(" ", "");

This used to work but not with iOS 13 because the data will be like this:

"{length = 32, bytes = 0x965b251c 6cb1926d e3cb366f dfb16ddd ... 5f857679 376eab7c }"

There's answers for how to do this correctly with objective c and swift but I haven't found one with C#.

Reference:

Get device token for push notification

https://nshipster.com/apns-device-tokens/

How to do this with Xamarin?

Answer 1

Looks like I found the answer myself:

byte[] result = new byte[deviceToken.Length];
Marshal.Copy(deviceToken.Bytes, result, 0, (int) deviceToken.Length);
var token = BitConverter.ToString(result).Replace("-", "");

Using this code I was able to get a device token and send a notification.