NSUserDefaultsDidChangeNotification 在应该触发时没有触发或者根本没有？
在我的应用程序中，我已在 awakeFromNib 中注册了 NSUserDefaultsDidChangeNotification 通知以及其他通知（工作正常）。我如下所示注册它，这似乎是正确的：
- (void)awakeFromNib
{
[[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(myAction:) name:NSUserDefaultsDidChangeNotification object:nil];
}
并且我的操作方法似乎格式也正确：
- (void)myAction:(NSNotifcation*)notifcation
{
NSLog(@"foo);
}
但是，由于未知的原因，它根本拒绝触发。无论应用程序的默认设置发生了多少变化，它都不会触发一次。是我注册错误还是其他原因？过去还有其他人遇到过这个问题吗？
In my application, I have registered the NSUserDefaultsDidChangeNotification notification in awakeFromNib along with my other notifications (which are working fine). I register it just as shown below, which appears to be correct:
- (void)awakeFromNib
{
[[[NSWorkspace sharedWorkspace] notificationCenter] addObserver:self selector:@selector(myAction:) name:NSUserDefaultsDidChangeNotification object:nil];
}
and my action method appears to be correctly formatted as well:
- (void)myAction:(NSNotifcation*)notifcation
{
NSLog(@"foo);
}
For unknown reasons, however, it refuses to fire at all. No matter how many of the application's defaults are changed, it never fires even once. Am I registering wrong or is something else the cause? Has anybody else experienced this problem in the past?
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您是否尝试过使用
[NSNotificationCenter defaultCenter]而不是工作区通知中心？Have you tried using
[NSNotificationCenter defaultCenter]instead of the workspace notification center?