如何向UILocalNotification警报添加操作按钮/操作？

Question

我在我的应用程序中安排了本地通知,现在当我向左侧滑动警报时,我得到一个通用的取消(交叉)按钮.

我很好奇我是否可以添加自定义按钮/操作,如下图所示？

Answer 1

我为你准备了一些剪切代码,在ViewDidLoad方法显示后,用一个按钮显示通知10秒.

  import UIKit

    class TestViewController: UIViewController {

        let category = UIMutableUserNotificationCategory()

        override func viewDidLoad() {
            super.viewDidLoad()

            let restartAction = UIMutableUserNotificationAction()
            restartAction.identifier = "xx"
            restartAction.destructive = false
            restartAction.title = "Restart"
            restartAction.activationMode = .Background
            restartAction.authenticationRequired = false

            let categoryIdentifier = "category.identifier"
            category.identifier = categoryIdentifier
            category.setActions([restartAction], forContext: .Minimal)
            category.setActions([restartAction], forContext: .Default)

            let categories = Set(arrayLiteral: category)
            let settings = UIUserNotificationSettings(forTypes: [.Alert, .Sound], categories: categories)
            UIApplication.sharedApplication().registerUserNotificationSettings(settings)


            let localNotif = UILocalNotification()
            localNotif.alertBody = "testBody"
            localNotif.category = categoryIdentifier

            // Notification will be shown after 10 second (IMPORTANT: if you want to see notification you have to close or put app into background)
            localNotif.fireDate = NSDate().dateByAddingTimeInterval(10)
            UIApplication.sharedApplication().scheduleLocalNotification(localNotif)
        }

    }

注意:您必须在AppDelegate方法中处理操作:

func application(application: UIApplication, handleActionWithIdentifier identifier: String?,
                forLocalNotification notification: UILocalNotification, completionHandler: () -> Void) {

  completionHandler()
}

当然我的代码并不像它应该的那么干净,但你必须知道我只是为了演示目的而编写它.

这段代码是用Swift编写的,但是转换为Objective C应该非常简单.