extendCredentials static method
void
extendCredentials()
Extend a list of credentials from one device to another.
The user must be in an authenticated state to extend any credentials. During this flow the user is prompted for a biometric challenge. If biometrics are not set, it falls back to PIN.
After the challenge is completed, a rendezvous token is provided with 90 seconds time-to-live, after which a new token is generated.
NOTE: to cancel the credentials flow, cancelExtendCredentials must be invoked.
credentialHandles
is the list of credential handles to extend.
exportCallback
is a callback that receives status updates during the
execution of the flow. Its argument is a map with the following contents:
- "status": one of constant values in the ExtendCredentialsStatus class.
- "token": only present if status is "update". Contains the new rendezvous token value.
- "errorMessage": only present if status is "error". Contains the error message.
Implementation
static void extendCredentials(List<String> credentialHandles, Function(Map<String, String?>) exportCallback) {
_exportCallback = exportCallback;
_exportSubscription = _eventChannel.receiveBroadcastStream(credentialHandles).listen((event) {
if (_exportCallback != null) {
_exportCallback!(event.cast<String, String?>());
}
});
}