addStreamSubscription method
Implementation
void addStreamSubscription(StreamSubscription sub) {
debugPrint('SubscriptionMixin, $this,StreamSubscription->$sub, add');
_streamList.add(sub);
}
void addStreamSubscription(StreamSubscription sub) {
debugPrint('SubscriptionMixin, $this,StreamSubscription->$sub, add');
_streamList.add(sub);
}