本地通知更新为当前时间

Question

我创建了一个带有日期（键）和单词（第一 - 第二..）的字典，如下所示：

let dict = ["23.08.2021":["First","number"],
      "24.08.2021":["second","number"],
      "25.08.2021":["third","number"]]

我希望应用根据应用的当前日期发送本地通知！如果今天是 2021 年 8 月 25 日，应用程序将发送本地通知，标题为 third。

我做了什么：

要获取当前日期，我使用此代码：

let date3 = Date()
            let thirtyDay = Calendar.current.date(byAdding: .day, value: 0, to: date3)! 
            let formatter3 = DateFormatter()
            formatter3.dateFormat = "dd.MM.yyyy"
            let result3 = formatter3.string(from: thirtyDay)
            UserDefaults.standard.set(result3, forKey:"nextDAY")

从字典中保存关键字和单词:

    for (key, value) in dict {
            UserDefaults.standard.set(value[0], forKey:"the number")
            UserDefaults.standard.set(value[1], forKey:"the word")

        }

代码：

func scheduleLocal() {

    let center = UNUserNotificationCenter.current()

    let content = UNMutableNotificationContent()

    content.title = " #### what should i write here??? #######"
    content.body = "click here"
    content.categoryIdentifier = "alarm"
    content.userInfo = ["customData": "fizzbuzz"]
    content.sound = UNNotificationSound.default

    TimeSet.datePickerMode = .time

    let date = TimeSet.date
    let components = Calendar.current.dateComponents([.hour, .minute], from: date)
    let hour = components.hour!
    let minute = components.minute!

    var dateComponents = DateComponents()
    dateComponents.hour = hour
    dateComponents.minute = minute
    let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)

    let request = UNNotificationRequest(identifier: "X", content: content, trigger: trigger)
    center.add(request)
    }

Answer 1

如果您希望您的应用使用“scheduleLocal()”函数根据当前日期发送本地通知，请尝试如下操作：

func scheduleLocal() {
    let center = UNUserNotificationCenter.current()
    
    let content = UNMutableNotificationContent()
    
    let formatter = DateFormatter()
    formatter.dateFormat = "dd.MM.yyyy"
    let todayKey = formatter.string(from: Date())
    
    if let title = dict[todayKey]?[0] {
        content.title = title
    } else {
        //   content.title = "what ever you want to send"
        // or don't send anything
        return
    }
    content.body = "click here"
    content.categoryIdentifier = "alarm"
    content.userInfo = ["customData": "fizzbuzz"]
    content.sound = UNNotificationSound.default
    
    TimeSet.datePickerMode = .time
    
    let date = TimeSet.date
    let components = Calendar.current.dateComponents([.hour, .minute], from: date)
    let hour = components.hour!
    let minute = components.minute!
    
    var dateComponents = DateComponents()
    dateComponents.hour = hour
    dateComponents.minute = minute
    let trigger = UNCalendarNotificationTrigger(dateMatching: dateComponents, repeats: true)
    
    let request = UNNotificationRequest(identifier: "X", content: content, trigger: trigger)
    center.add(request)
}

PS：你的“thirtyDay”应该是这样的：

let thirtyDay = Calendar.current.date(byAdding: .day, value: 30, to: date3)!

本地通知更新为当前时间

local notification updated with current time

xcode

notifications

swift