我需要你帮助一个项目。
我有3个变量,一个用于当天,另一个用于月份,最后一个用于一年。像那样:
var year = 2017
var month = 06
var day = 19
我想发送通知,即使应用程序在我们处于这些变量的日期时已关闭,但我对日历和日期并不是很好。我刚刚制作了这个应用程序。
let myNotification = Notification.Name(rawValue:"MyNotification")
override func viewDidLoad() {
super.viewDidLoad()
let nc = NotificationCenter.default
nc.addObserver(forName:myNotification, object:nil, queue:nil, using:catchNotification)
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
let nc = NotificationCenter.default
nc.post(name:myNotification,
object: nil,
userInfo:["message":"Hello there!", "date":Date()])
}
func catchNotification(notification:Notification) -> Void {
print("Catch notification")
guard let userInfo = notification.userInfo,
let message = userInfo["message"] as? String,
let date = userInfo["date"] as? Date else {
print("No userInfo found in notification")
return
}
let alert = UIAlertController(title: "Notification!",
message:"\(message) received at \(date)",
preferredStyle: UIAlertControllerStyle.alert)
alert.addAction(UIAlertAction(title: "OK", style: UIAlertActionStyle.default, handler: nil))
self.present(alert, animated: true, completion: nil)
}
提前谢谢
答案 0 :(得分:1)
您需要设置本地通知并使用UNCalendarNotificationTrigger
在特定日期触发。
let dateComponents = DateComponents(year: year, month: month, day: day)
let yourFireDate = Calendar.current.date(from: dateComponents)
let content = UNMutableNotificationContent()
content.title = NSString.localizedUserNotificationString(forKey:
"Your notification title", arguments: nil)
content.body = NSString.localizedUserNotificationString(forKey: "Your notification body", arguments: nil)
content.categoryIdentifier = "Your notification category"
content.sound = UNNotificationSound.default()
content.badge = 1
let dateComponents = Calendar.current.dateComponents(Set(arrayLiteral: Calendar.Component.year, Calendar.Component.month, Calendar.Component.day), from: yourFireDate)
let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: false)
let request = UNNotificationRequest(identifier: "Your notification identifier", content: content, trigger: trigger)
UNUserNotificationCenter.current().add(request, withCompletionHandler: { error in
if let error = error {
//handle error
} else {
//notification set up successfully
}
}
答案 1 :(得分:0)
以下是将自定义事件添加到日历的方法。
osm2pgsql -c -d insights_poi -U insights_poi -H beta.cyrrprcqeykj.us-east-1.rds.amazonaws.com -r .pbf -S default.style -W austin_texas.osm.pbf
答案 2 :(得分:0)
在 swift 3-4 中使用此功能。
func scheduleLocal() {
let dateComponents = DateComponents(year: 2019, month: 1, day: 17, hour: 10, minute: 20)
let yourFireDate = Calendar.current.date(from: dateComponents)
let notification = UILocalNotification()
notification.fireDate = yourFireDate
notification.alertBody = "Hey you! Yeah you! Swipe to unlock!"
notification.alertAction = "be awesome!"
notification.soundName = UILocalNotificationDefaultSoundName
notification.userInfo = ["CustomField1": "w00t"]
UIApplication.shared.scheduleLocalNotification(notification)
}