CallClientObserver
@available(iOS 12.0, *)
@objc(BDKCallClientObserver)
public protocol CallClientObserver : NSObjectProtocol
An observer of a call client object.
You subscribe as a CallClientObserver
when you want to react about CallClient
object state changes.
You are required to implement at least the callClientDidChangeState(_:oldState:newState:)
method invoked after the CallClient
has changed its state
-
An optional method invoked when the
CallClient
is about to change its state.Implement this method when you want to react before the
CallClient
change its internal state. This method provides the current state of the client and the new state the client will transition to.Important
If you subscribe as an asynchronous observer, the current state you are going to get from the client parameter won’t match the value from the
currentState
parameterDeclaration
Swift
@objc(callClientWillChangeState:oldState:newState:) optional func callClientWillChangeState(_ client: CallClient, oldState: CallClientState, newState: CallClientState)
Parameters
client
The chat client object.
oldState
The state the chat client is about to leave.
newState
The state the chat client is about to transition to.
-
A method invoked when the
CallClient
changed its state.Implement this method when you want to react after the
CallClient
changed its internal state. This method provides the new state the client has transitioned to and the old state the client was in before the transition occurred.Declaration
Swift
@objc(callClientDidChangeState:oldState:newState:) func callClientDidChangeState(_ client: CallClient, oldState: CallClientState, newState: CallClientState)
Parameters
client
The chat client object.
oldState
The state the chat client was in before the transition occurred.
newState
The state the chat client transitioned to.
-
An optional method invoked when the
CallClient
has failed.Implement this method when you want to react after the
CallClient
has failed, getting the cause of the failure as a method parameter.Declaration
Swift
@objc(callClient:didFailWithError:) optional func callClient(_ client: CallClient, didFailWithError error: Error)
Parameters
client
The chat client object.
error
The error occurred.