Our PTT framework app works great but we have now found an interesting scenario where you can get the PTT Framework in a state that is non functional. Here's how it can be reproduced:
- Start your PTT app ( With PTT framework ) Successfully joined channel and we can transmit and receive incoming transmits.
- Put app in background. ( PTT framework/GUI symbol present in top)
- Wait 1 min
- Restart phone by pressing volume up + right side button
- Wait 1 min
- Start phone
We can now get two scenarios: "Sceanario *1": In 4 of 5 cases the PTT framework symbol will be present directly when phone is started. If we here start running our app we can see that the channel is restored and everyting works perfectly.
"Sceanario *2": In 1 of 5 cases the PTT framework symbol is not present after phone is started, and will not be even if waiting. If we here start running our app we can see that the channel is also here restored (channelDescriptor(restoredChannelUUID channelUUID: UUID) -> PTChannelDescriptor) and we can successfully call "mgr.setTransmissionMode(newTransmissionMode, channelUUID: self.channelUUID)" on our channel ( PTT framework symbol still not present !!!!) If we now try to call "requestBeginTransmitting(channelUUID: UUID)" we will get the PTChannelError error channelNotFound !!!!
We are then reacting to this and trying to do leave the channel "leaveChannel(channelUUID: UUID)" but also this is returning PTChannelError error channelNotFound in "channelManager(_ channelManager: PTChannelManager, failedToLeaveChannel channelUUID: UUID, error: Error))" !!!! The interesting thing here is that my log is saying the following: PTTFrameworkImpl: failedToLeaveChannel 6D5AFE96-9389-4CFB-893A-64D51D4542XX error=The operation couldn’t be completed. (com.apple.pushtotalk.channel error 1.), joined=true, activeChannelUUID is=6D5AFE96-9389-4CFB-893A-64D51D4542XX. So we are getting channelNotFound for 6D5AFE96-9389-4CFB-893A-64D51D4542XX but when at the same type checking active channel with channelManager.activeChannelUUID we are getting 6D5AFE96-9389-4CFB-893A-64D51D4542XX.
After this we logout our user in our app. If we now try to login again we will get a scenario where "requestJoinChannel(channelUUID: UUID, descriptor: PTChannelDescriptor)" will result in just NO RESPONS in means of "channelManager(_ channelManager: PTChannelManager, didJoinChannel channelUUID: UUID, reason: PTChannelJoinReason)" or "channelManager(_ channelManager: PTChannelManager, failedToJoinChannel channelUUID: UUID, error: Error)"
FYI: The fault are occuring on 17.3 also and the syslog I provided here is on 17.3 developer beta
One interesting observation we have seen is that we only see this problem when "allow location access" is set to never for our app.
