本文介绍了NotificationCenter注册的选择器未调用的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我目前在下面有以下代码，以查看这一天是否已过，但似乎无法正常运行.我编码正确了吗?
I currently have this code below to see if the day has elapsed, but it doesn't seem to be working. Have I coded this correctly?
NotificationCenter.default.addObserver(self, selector:"calendarDayDidChange:", name:NSNotification.Name.NSCalendarDayChanged, object:nil)
func calendarDayDidChange(notification : NSNotification) {
// code to respond to notification
}
推荐答案
我认为您注册观察员的方式不正确.请尝试以下检查.
I think the way you registered observer is not correct. Please try the below and check.
NotificationCenter.default.addObserver(self, selector:#selector(self.calendarDayDidChange(notification:)), name:NSNotification.Name.NSCalendarDayChanged, object:nil)
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