setTransmissionMode(_:channelUUID:completionHandler:)

Sets the audio transmission mode for the channel you specify.

Declaration

func setTransmissionMode(_ transmissionMode: PTTransmissionMode, channelUUID: UUID, completionHandler: (@Sendable ((any Error)?) -> Void)? = nil)

func setTransmissionMode(_ transmissionMode: PTTransmissionMode, channelUUID: UUID) async throws

Parameters

transmissionMode:
The transmission mode.
channelUUID:
The channel identifier the participant becomes active in.
completionHandler:
The completion handler that contains an optional error.
error
An error, if any, that indicates the reason why the system couldn’t set the transmission mode.

Discussion

important:

You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:

func setTransmissionMode(_ transmissionMode: PTTransmissionMode, channelUUID: UUID) async throws

For information about concurrency and asynchronous code in Swift, see Calling Objective-C APIs Asynchronously.

By default, a channel’s transmission mode is PTTransmissionMode.halfDuplex — indicating that only one participant can send or receive audio at a time. Use PTTransmissionMode.fullDuplex to allow a person to transmit and receive audio simultaneously.

Set the transmission mode to PTTransmissionMode.listenOnly to prevent a participant from transmitting any audio.