以编程方式从通知托盘中删除UILocalNotification [英] Removing UILocalNotification from notification tray programatically

问题描述

有没有办法以编程方式从通知托盘中删除/解除 UILocalNotification 。
我可以取消删除通知的通知

Is there a way to programmatically remove/dismiss UILocalNotification from Notification Tray. I am able to cancel the notification which removes the notifications from

[[UIApplication sharedApplication] scheduledLocalNotifications]

这是我需要做的事情

我需要在执行操作后（即在用户点击通知后）从NotificationTray中解除 UILocalNotification

I need to dismiss the UILocalNotification from NotificationTray after the action has been performed(ie after the user taps the notification)

编辑：
我可以从 NSNotificationCenter 中删除​​通知。我想从通知托盘中删除特定通知。就像用户按下清除按钮清除属于特定应用程序的所有通知一样。

I can remove the notifications from the NSNotificationCenter. I want to remove specific notifications from the Notification Tray .Like the user presses the clear button to clear all the notifications belonging to a particular application.

推荐答案

您可以使用以下方式取消所有通知：

You can cancel all notifications using:

[[UIApplication sharedApplication] cancelAllLocalNotifications];

如果要删除特定通知，可以使用 userinfo 的通知对象，当您创建本地通知时，为其添加唯一ID。稍后您可以使用该ID删除本地通知。

If you want to remove a particular notification, you can use userinfo of notification object, when you create a local notification add a unique ID to that. Later you can use that ID for removing local notification.

为此，您可以使用以下代码：

For that you can use the following code:

NSString *notificationId = @"id_to_cancel";
UILocalNotification *notification = nil;
for(UILocalNotification *notify in [[UIApplication sharedApplication] scheduledLocalNotifications])
{
  if([[notify.userInfo objectForKey:@"ID"] isEqualToString:notificationId])
  {
     notification = notify;
     break;
  }
}
[[UIApplication sharedApplication] cancelLocalNotification:notification];

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