public void addObserver(System.Object target, Action<NSNotification> aSelector, string aName, System.Object sender=null){
List<NSNotificationObserver> observers = null;
if (!_name_observers.TryGetValue (aName, out observers)) {
_name_observers[aName] = observers = new List<NSNotificationObserver>();
}
NSNotificationObserver observer = null;
var enumerator = observers.GetEnumerator();
while (enumerator.MoveNext()) {
NSNotificationObserver aObserver = enumerator.Current;
if(aObserver.target == target){
observer = aObserver;
}
}
if (observer == null) {
observer = new NSNotificationObserver ();
observer.target = target;
observer.selectorAndSenders = new List<NSNotificationSelectorAndSender> ();
observers.Add(observer);
} else {
var eu = observer.selectorAndSenders.GetEnumerator();
while (eu.MoveNext()) {
NSNotificationSelectorAndSender selectorAndSender = eu.Current;
NSUtils.Assert(selectorAndSender.selector != aSelector || selectorAndSender.sender != sender,
"NSNotificationDelegate#addObserver : Dont' add observer with same target/method/sender !");
}
}
NSNotificationSelectorAndSender selAndSender = new NSNotificationSelectorAndSender();
selAndSender.selector = aSelector;
selAndSender.sender = sender;
observer.selectorAndSenders.Add (selAndSender);
}
public void addObserver(System.Object target, Action <NSNotification> aSelector, string aName, System.Object sender = null)
{
List <NSNotificationObserver> observers = null;
if (!_name_observers.TryGetValue(aName, out observers))
{
_name_observers[aName] = observers = new List <NSNotificationObserver>();
}
NSNotificationObserver observer = null;
var enumerator = observers.GetEnumerator();
while (enumerator.MoveNext())
{
NSNotificationObserver aObserver = enumerator.Current;
if (aObserver.target == target)
{
observer = aObserver;
}
}
if (observer == null)
{
observer = new NSNotificationObserver();
observer.target = target;
observer.selectorAndSenders = new List <NSNotificationSelectorAndSender> ();
observers.Add(observer);
}
else
{
var eu = observer.selectorAndSenders.GetEnumerator();
while (eu.MoveNext())
{
NSNotificationSelectorAndSender selectorAndSender = eu.Current;
NSUtils.Assert(selectorAndSender.selector != aSelector || selectorAndSender.sender != sender,
"NSNotificationDelegate#addObserver : Dont' add observer with same target/method/sender !");
}
}
NSNotificationSelectorAndSender selAndSender = new NSNotificationSelectorAndSender();
selAndSender.selector = aSelector;
selAndSender.sender = sender;
observer.selectorAndSenders.Add(selAndSender);
}
public void postNotification(NSNotification n)
{
List <NSNotificationObserver> observers = observersForName(n.name);
if (observers == null)
{
return;
}
for (int i = observers.Count - 1; i >= 0; i--)
{
NSNotificationObserver observer = observers[i];
List <NSNotificationSelectorAndSender> selectorAndSenders = observer.selectorAndSenders;
for (int j = selectorAndSenders.Count - 1; j >= 0; j--)
{
NSNotificationSelectorAndSender selectorAndSender = selectorAndSenders[j];
if (selectorAndSender.sender == null || selectorAndSender.sender == n.sender)
{
selectorAndSender.selector(n);
}
}
}
}