问题描述
我具有以下设置,并且根本没有发出任何通知.
I have the following setup and no notification are firing at all.
基于堆栈上的其他类似问题,我为每个请求添加了唯一标识符,并且还将正文添加到了内容中.
Based on other similar questions on the stack, I've put in a unique identifier for each request and I've also added the body to the content.
我有这个功能,需要用户的许可.
I've got this function which requests permission from user.
func sendIntNotifications()
{
//1. Request permission from the user
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .badge, .sound], completionHandler:
{
(granted, error) in
if granted
{
print ("Notification access granted")
}
else
{
print(error?.localizedDescription)
}
UNUserNotificationCenter.current().delegate = self
})
// This function has a lot of other code that then calls this function to set multiple notifications :
for daysInt in outputWeekdays
{
scheduleActualNotification(hourInt: hourInt, minuteInt: minuteInt, dayInt: daysInt)
}
}
这些是主要功能:
func scheduleActualNotification(hourInt hour: Int, minuteInt minute: Int, dayInt day: Int)
{
// 3.1 create date components for each day
var dateComponents = DateComponents()
dateComponents.hour = hour
dateComponents.minute = minute
dateComponents.day = day
//3.2 Create a calendar trigger for that day at that time
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents,
repeats: true)
//3.3 Message content
let content = UNMutableNotificationContent()
content.title = "Test Title"
content.body = "Test body"
content.badge = 1
// 3.4 Create the actual notification
let request = UNNotificationRequest(identifier: "bob \(i+1)",
content: content,
trigger: trigger)
// 3.5 Add our notification to the notification center
UNUserNotificationCenter.current().add(request)
{
(error) in
if let error = error
{
print("Uh oh! We had an error: \(error)")
}
}
}
此功能用于在此应用打开时接收通知
This function is to receive the notification when this app is open
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)
{
completionHandler([.alert, .sound]) //calls the completionHandler indicating that both the alert and the sound is to be presented to the user
}
也没有错误!
因此,从用户界面中,我选择了2350,并选择了星期六和星期日.我希望通知会在周六和周日的2350发送.
So from the user interface, I selected 2350 and Saturday and Sunday. I expect the notification to be sent at 2350 on both Saturday and Sunday.
我做了 print(daysInt)
.它的第一个值是1,第二个值是7,与预期的一样.其次,我进入了 scheduleActualNotification
函数,与预期的一样,小时的值为23,分钟的值为50.
I did print(daysInt)
. The first value of it is 1 and the second value of it is 7 which is just as expected. Secondly, I went into the function scheduleActualNotification
and the values of hour was 23 and minute was 50, just as expected.
谢谢!
推荐答案
因此,经过数周的挫折,这是解决方案:
So after weeks of frustration, this is the solution :
用 dateComponents.weekday = day
替换 dateComponents.day = day
. .day
是一个月中的一天,而 .weekday
是一个星期中的一天!
Replace dateComponents.day = day
with dateComponents.weekday = day
. .day
is for day of the month whereas .weekday
is day of the week!
也不要使用 dateComponents.year = 2017
,因为这会导致通知无法触发.
Also do not use dateComponents.year = 2017
as that caused the notifications not to fire.
这些通知现在可以正常工作了!
The notifications work perfectly fine now!!
这篇关于Swift 3本地通知未触发的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!