繁体   English   中英

如何获取待处理的UNNotificationRequest的剩余时间?

[英]How to get the remaining time of pending UNNotificationRequest?

到目前为止,加入后UNNotificationRequestUNUserNotificationCenter包含UNTimeIntervalNotificationTrigger (下面是我实现的代码):

let center = UNUserNotificationCenter.current()
center.requestAuthorization(options: [.alert, .badge, .sound]) { (granted, error) in
    if granted {
        let content = UNMutableNotificationContent()
        center.delegate = self
        content.title = "title"
        content.body = "body"

        let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 10.0, repeats: false)
        let request = UNNotificationRequest(identifier: UUID().uuidString, content: content, trigger: trigger)
        center.add(request)
    }
}

它可以正常工作,但我需要的是访问剩余时间来触发请求触发器。

为了清楚起见,在我的代码段中,我声明了:

let trigger = UNTimeIntervalNotificationTrigger(timeInterval: 10.0, repeats: false)

因此,如果我等待6秒(从执行上述代码段开始),则剩余时间应为4秒。

另外,我尝试获取待处理的请求以检查其触发器,如下所示:

UNUserNotificationCenter.current().getPendingNotificationRequests(completionHandler: { requests in
     for request in requests {
         print(request.trigger)
     }
})

但在UNNotificationTrigger中找不到所需的属性。

问题可能是什至有一种访问方法? 如果不是,那么实现该目标的逻辑解决方法呢?

我从待处理的UNNotificationRequest Swift4代码中获取时间间隔值

UNUserNotificationCenter.current().getPendingNotificationRequests(completionHandler: {requests -> () in
for request in requests {
    let localTrigger = request.trigger  as! UNTimeIntervalNotificationTrigger
    localTimeInterval = localTrigger.timeInterval
    print (localTimeInterval)
}})

暂无
暂无

声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM