registerPreSendCallback method
- PresencePreSendCallback callback
Register the pre-send callback callback
.
Implementation
void registerPreSendCallback(PresencePreSendCallback callback) {
_presenceCallbacks.add(callback);
}
Register the pre-send callback callback
.
void registerPreSendCallback(PresencePreSendCallback callback) {
_presenceCallbacks.add(callback);
}