Question

我想在添加新通知时从NotificationCenter中删除所有以前的本地通知。但它适用于iOS9.0及更低版本，但在iOS 10中它会触发多个本地通知。所以似乎cancelAllLocalNotifications没有清除通知。

在iOS10中成功编译代码。

UIApplication.shared.cancelAllLocalNotifications()

Answer 1

对于iOS 10，Swift 3.0

从iOS 10推荐

cancelAllLocalNotifications。

@available(iOS, introduced: 4.0, deprecated: 10.0, message: "Use UserNotifications Framework's -[UNUserNotificationCenter removeAllPendingNotificationRequests]")
open func cancelAllLocalNotifications()

您必须添加此导入语句

import UserNotifications

获取通知中心。并执行如下操作

let center = UNUserNotificationCenter.current()
center.removeAllDeliveredNotifications() // To remove all delivered notifications
center.removeAllPendingNotificationRequests() // To remove all pending notifications which are not delivered yet but scheduled.

如果您想删除单个或多个特定通知，可以通过以下方法实现。

center.removeDeliveredNotifications(withIdentifiers: ["your notification identifier"])

希望它有所帮助.. !!

Answer 2

对于iOS 10，Objective C ：

UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
[center removeAllDeliveredNotifications];
[center removeAllPendingNotificationRequests];

Swift 4 ：

UNUserNotificationCenter.current().removeAllPendingNotificationRequests()

如果您想列出所有通知：

func listPendingNotifications() {

    let notifCenter = UNUserNotificationCenter.current()
    notifCenter.getPendingNotificationRequests(completionHandler: { requests in
        for request in requests {
            print(request)
        }
    })
}

Answer 3

对于iOS 10，您可以使用这种方式删除所有本地通知。我刚刚测试过，它正在工作。

    NSArray *arrayOfLocalNotifications = [[UIApplication sharedApplication] scheduledLocalNotifications] ;
    for (UILocalNotification *localNotification in arrayOfLocalNotifications) {
        [[UIApplication sharedApplication] cancelLocalNotification:localNotification] ;
    }

cancelAllLocalNotifications在iOS10中不起作用

3 个答案: