dispose method
没有监听者调用一次
Implementation
@override
void dispose() {
onRemove(this);
if (!isCanceled) onSend(identityKey, KeyType.cancel, serverName);
assert(!hasListener);
}
没有监听者调用一次
@override
void dispose() {
onRemove(this);
if (!isCanceled) onSend(identityKey, KeyType.cancel, serverName);
assert(!hasListener);
}