unregisterStateObserver method
Implementation
int unregisterStateObserver(EffectFinishedCallback callback) {
return _callbacks.remove(callback) ? RCRTCErrorCode.OK : RCRTCErrorCode.UnknownError;
}
int unregisterStateObserver(EffectFinishedCallback callback) {
return _callbacks.remove(callback) ? RCRTCErrorCode.OK : RCRTCErrorCode.UnknownError;
}