Receive messages in an open channel

SendbirdChat.addChannelHandler(
    UNIQUE_HANDLER_ID,
    object : OpenChannelHandler() {
        override fun onMessageReceived(channel: BaseChannel, message: BaseMessage) {
            // You can customize how to display the different types of messages with the result object in the message parameter.
            when (message) {
                is UserMessage -> {}
                is FileMessage -> {}
                is AdminMessage -> {}
            }
        }
    }
)

SendbirdChat.removeChannelHandler(UNIQUE_HANDLER_ID);

override fun onThreadInfoUpdated(channel: BaseChannel, threadInfoUpdateEvent: ThreadInfoUpdateEvent) {
    // Look for a message that has threadInfoUpdateEvent.targetMessageId
    // Apply the event to the message.
    parentMessage.applyThreadInfoUpdateEvent(threadInfoUpdateEvent)
}