iOS通知触发器:每两周和/或每季度一次 [英] iOS Notification Trigger: fortnightly and/or quarterly
问题描述
在这种情况下,我似乎找不到任何Apple文档,并且我尝试了各种方法来做到这一点,但我一直空着。
I can't seem to find any Apple Documentation for this exact scenario, and I've tried various ways to do this and I keep coming up empty.
我想安排重复的通知( iOS 10 +
,所以 UNCalendarNotificationTrigger
或等价货币。)
这些是本地通知 不是推送通知。
I would like to schedule a repeating notification (iOS 10+
so UNCalendarNotificationTrigger
or equivalent).
These are Local Notifications not Push Notifications.
重复的计划通知:
- 每两周一次(例如,每秒星期二)
- 每季度一次(例如,每3个月)
- once a fortnight (e.g., every second Tuesday)
- once a quarter (e.g., 1st of every 3 months)
这些触发器工作良好,并且易于实现(在Swift Playground中运行代码)。
These triggers work well, and are simple to implement (Running the code in a Swift Playground).
// Every day at 12pm
var daily = DateComponents()
daily.hour = 12
let dailyTrigger = UNCalendarNotificationTrigger(dateMatching: daily, repeats: true)
dailyTrigger.nextTriggerDate() // "Jan 4, 2017, 12:00 PM"
// Every Tuesday at 12pm
var weekly = DateComponents()
weekly.hour = 12
weekly.weekday = 3
let weeklyTrigger = UNCalendarNotificationTrigger(dateMatching: weekly, repeats: true)
weeklyTrigger.nextTriggerDate() // "Jan 10, 2017, 12:00 PM"
// The 1st of every month at 12pm
var monthly = DateComponents()
monthly.hour = 12
monthly.day = 1
let monthlyTrigger = UNCalendarNotificationTrigger(dateMatching: monthly, repeats: true)
monthlyTrigger.nextTriggerDate() // "Feb 1, 2017, 12:00 PM"
// Every 1st of February at 12pm
var yearly = DateComponents()
yearly.hour = 12
yearly.day = 1
yearly.month = 2
let yearlyTrigger = UNCalendarNotificationTrigger(dateMatching: yearly, repeats: true)
yearlyTrigger.nextTriggerDate() // "Feb 1, 2017, 12:00 PM"
但是...
我似乎无法获得每两周
或每季度
触发才能正常运行。
But...
I can't seem to get a fortnightly
or quarterly
trigger to function correctly.
// Every second Tuesday at 12pm
// ... There is no "date.fortnight", is this possible?
// The 1st of every quarter at 12pm
var quarterly = DateComponents()
quarterly.hour = 12
quarterly.day = 4
// Values: 1, 2, 3 or 4 all produce the same "nextTriggerDate" - why?
quarterly.quarter = 4
let quarterlyTrigger = UNCalendarNotificationTrigger(dateMatching: quarterly, repeats: true)
quarterlyTrigger.nextTriggerDate()
因此,很明显,我的问题是:
So, to be clear, my questions are:
- 是否有可能收到每两周重复一次的通知?
- 我们如何每季度获取一次触发器?
由于 DateComponents()
具有 quarter
单元,我认为<季度$ 触发器是可能的。对于每两周一次的提醒,我什至不确定这是否可能...
Since DateComponents()
has a quarter
unit, I assume that a quarterly
trigger is possible. For the fortnightly reminder however, I'm not even sure if this is possible...
任何见识都会受到赞赏!
Any insight would be appreciated!
推荐答案
我没有看到任何直接触发两周通知的选项。从我的建议开始。
I didn't see any direct option to trigger fortnight notification.Suggestion from my end.
1) 是否有可能收到每两周重复一次的通知?
我提出了两种选择:
-
我们是否可以使用
UNTimeIntervalNotificationTrigger
以两周的时间间隔重复通知时间?下面的示例
Can we use
UNTimeIntervalNotificationTrigger
to repeat the notification with a time interval of two weeks time? Example below
let timeInterValFor2Weeks = 1190507.790425003
let intervalTrigger = UNTimeIntervalNotificationTrigger(timeInterval: timeInterValFor2Weeks, repeats: true)//"Jan 3, 2017, 5:24 PM"
intervalTrigger.nextTriggerDate() //"Jan 17, 2017, 12:05 PM"
安排两个 UNCalendarNotificationTrigger
触发器,该触发器应触发一个月的第一天和第三天。例如,它应该在一个月的第一个星期日和第三个星期日触发通知。
Schedule two UNCalendarNotificationTrigger
trigger, which should trigger first and third day of a month. For example it should fire notification in first Sunday and third Sunday of a month.
var fortnightPart1 = DateComponents()
fortnightPart1.weekday = 1 //(Day..here Sunday)
fortnightPart1.weekdayOrdinal = 2 //= n == (nth Day in the month...here 2nd Sunday in every month month)
fortnightPart1.hour = 12
let fortnightTrigger = UNCalendarNotificationTrigger(dateMatching: fortnightPart1, repeats: true)
fortnightPart1.nextTriggerDate()
2) 我们如何每季度获得一次触发? / em>
2) How do we get a trigger for once a quarter?
如果没有直接可用的选项,那么我建议使用与上述相同的解决方案。
If there is no direct option available, then I suggest the same solution as above.
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