/// <summary>
/// 检查是否已经添加了某事件的某监听
/// </summary>
/// <param name="eventType">事件类型</param>
/// <param name="sel">需要检查的监听</param>
/// <returns>是否已经添加</returns>
public bool HasEventListener(string eventType, ListenerSelector sel)
{
if (!_dictListeners.ContainsKey(eventType))
{
return(false);
}
var selectors = _dictListeners[eventType];
var target = selectors.Find(src => sel == src);
return(target != null);
}
/// <summary>
/// 移除指定监听
/// </summary>
/// <param name="eventType">事件类型</param>
/// <param name="sel">要移除的监听</param>
/// <returns>是否移除成功</returns>
public bool RemoveEventListener(string eventType, ListenerSelector sel)
{
if (!HasEventListener(eventType, sel))
{
return(false);
}
var selectors = _dictListeners[eventType];
foreach (var item in selectors)
{
if (item == sel)
{
selectors.Remove(item);
return(true);
}
}
return(false);
}
