Question

我的目标是建立每天都会触发的本地通知。通知主体应该每天都不同。这是字符串数组，在通知中应显示一个字符串。随机选择字符串还是按顺序排列数组都没关系。

var arrayText: [String] = ["text1",  
                           "text2",  
                           "text3",  
                           "text4",  
                           "text5"]

这就是我走了多远。只是带有相同正文文本的普通本地通知。

func scheduleNotifications()
    {

              let center = UNUserNotificationCenter.current()

              center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
                  if !granted {
                      print("Something went wrong")
                  }
              }

              let content = UNMutableNotificationContent()
              content.title = "Test"
              content.body = "test"
              content.sound = UNNotificationSound.default

              let gregorian = Calendar(identifier: .gregorian)
              let now = Date()
              var components = gregorian.dateComponents([.year, .month, .day, .hour, .minute, .second], from: now)

              components.hour = 18
              components.minute = 42
              components.second = 10

              let date = gregorian.date(from: components)!   

              let triggerDaily = Calendar.current.dateComponents([.hour, .minute, .second], from: date)    

              let trigger = UNCalendarNotificationTrigger(dateMatching: triggerDaily, repeats: true)

              let uuidString = UUID().uuidString
              let request = UNNotificationRequest(identifier: uuidString, content: content, trigger: trigger)

              center.add(request, withCompletionHandler: { (error) in
                  if let error = error {
                      // Something went wrong
                  }
              })
    }

}

帮助会很棒。并感谢您的每一个有用的回答此致告诉阿卡Relbot

Answer 1

只需将content.body = "test"更改为content.body = arrayText[Int(arc4random_uniform(5))]。这样可以使content.body等于arrayText中的随机元素。

Answer 2

我知道这很旧，但是目前，执行此操作的方法是创建多个通知请求（也不要将触发器的重复设置为true）。然后在用户打开应用程序时设置新的。大卫·肖邦（David Chopin）提出的建议，在理论上应该起作用，但不起作用。

let array = ["text1", "text2", "text3", "text4", "text5"]
let chosenDate = Date()
for item in 0...64 {
   let date = chosenDate.adding(Calendar.Component.day, value: item)
   let triggerDaily = Calendar.current.dateComponents([.day, .hour, .minute], from: date)
   let trigger = UNCalendarNotificationTrigger(dateMatching: triggerDaily, repeats: false)
   let text = self.getRandom() {
   let content = UNMutableNotificationContent()
   content.body = array[Int(arc4random_uniform(UInt32(array.count)))] 
   content.sound = UNNotificationSound.default

   let request = UNNotificationRequest(identifier: quote.id!, content: content, trigger: trigger)
   UNUserNotificationCenter.current().add(request)
}

每天都有不同的正文文本的本地通知

2 个答案: