iOS中的本地通知（目标C）

Question

我已将本地通知安排在明天的上午10点，我关闭了手机，然后在明天的第二天打开了手机。这时，通知仍未收到。但是，如果我在安排的日期之后就可以接收通知了和时间。因此，一旦超过iOS中的预定日期和时间，就可以获得通知吗？

Answer 1

Could you please rephrase your question?

From what I understand you say that your local notification is not delivered if the device was not turned on at the scheduled time.

In general, your local notifications are not handled by your app. When you register a local notifiction, iOS is responsible for delivering it. This also means that your app does not have to be running when your local notification is scheduled to be delivered.

When your local notification was meant to be delivered at 10 AM, but your device was turned off from 9:50 to 10:10 AM, your local notification will be lost!

Your app should not rely on delivering that local notification. Your only way of knowing whether a user received your local notification is when he opens your app by clicking on the notification or using one of its actions. Your app will then be called by application:didReceiveLocalNotification when it is in the background, or regular by application:didFinishLaunchingWithOptions: when it was killed before.

TL;DR: You should not care whether a user received a local notification, as there is no way to make sure he receives it under certain conditions.