Invalid argument(s): DEVICETOKEN is not a valid CallState.

[jd-bus]

Issue Summary

Fatal Exception: FlutterError
Invalid argument(s): DEVICETOKEN is not a valid CallState.
0
twilio_voice_method_channel.dart - Line 430
MethodChannelTwilioVoice.parseCallEvent + 430
1
twilio_voice_method_channel.dart - Line 32
MethodChannelTwilioVoice.callEventsListener.<fn> + 32

Steps to Reproduce

Looking at the source, apparently this implies that the String "DEVICETOKEN" was passed as the parameter to parseCallEvent. parseCallEvent seems to handle a String starting with "DEVICETOKEN|" but does not handle just the String DEVICETOKEN:

  @override
  CallEvent parseCallEvent(String state) {
    if (state.startsWith("DEVICETOKEN|")) {
      var token = state.split('|')[1];
      if (deviceTokenChanged != null) {
        deviceTokenChanged!(token);
      }
      return CallEvent.log;
    } else ....

Maybe a simple fix? But I'm not sure of the root cause or why this would be unexpected. Maybe it means that the device token became null?

[cybex-dev]

Hi @jd-bus

Great catch, thanks for posting this issue. I'll investigate but clearly it's not meant to be the case. I'll address it in this next update.

[cybex-dev]

Hey @jd-bus,

This is an interesting one, I'm curious why the original developer(s) sent an empty/non-existing device token message...

https://github.com/cybex-dev/twilio_voice/blob/master/ios/Classes/SwiftTwilioVoicePlugin.swift#L686

I've got a planned rewrite of the iOS plugin, as it has some glaring issues.