在iOS 10中添加本地通知 - Swift 3

Question

所以我一直在尝试向新的UNUserNotificationCenter添加通知，但我似乎没有得到它。

我的视图控制器有一个动作：

@IBAction func sendPressed(_ sender: AnyObject) {
    let content = UNMutableNotificationContent()

    content.title = "Hello"
    content.body = "What up?"
    content.sound = UNNotificationSound.default()

    // Deliver the notification in five seconds.
    let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 5, repeats: false)
    let request = UNNotificationRequest.init(identifier: "FiveSecond", content: content, trigger: trigger)

    // Schedule the notification.
    let center = UNUserNotificationCenter.current()
    center.add(request) { (error) in
        print(error)
    }
    print("should have been added")
}

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)

    let center = UNUserNotificationCenter.current()
    center.requestAuthorization([.alert, .sound]) { (granted, error) in
    }
}

而且我在项目中也有一个Notification Content Extension，但它似乎根本没有被触发，任何想法我都缺少了？我正在尝试用户文档中的示例，但它并没有告诉我更多或者我错过了它。

在这里：https://developer.apple.com/reference/usernotifications/unmutablenotificationcontent

另外：https://developer.apple.com/reference/usernotificationsui https://developer.apple.com/reference/usernotifications

编辑：

所以把应用程序放在后台就可以了。

Answer 1

你需要注册通知...我试过，这是有效的。

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        // Override point for customization after application launch.
        let center = UNUserNotificationCenter.current()
        center.requestAuthorization([.alert, .sound]) { (granted, error) in
            // Enable or disable features based on authorization.
        }
        return true
    }

编辑：您不需要将您的应用程序放在后台，以显示iOS 10以后的通知。

使用下面的回调配置通知以显示在前台。

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void)

Here是一个示例项目。

Answer 2

使用Objective-C实现：

我在这里写了一个Demo项目：iOS10AdaptationTips。

1. 导入UserNotifications

   ///Notification become independent from Foundation
   @import UserNotifications;

2. 请求localNotification的授权

   UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
   [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert)
                         completionHandler:^(BOOL granted, NSError * _Nullable error) {
                             if (!error) {
                                 NSLog(@"request authorization succeeded!");
                                 [self showAlert];
                             }
                         }];

   请求授权：
3. 安排localNotification
4. 更新应用程序图标徽章编号

       //        //Deliver the notification at 08:30 everyday
       //        NSDateComponents *dateComponents = [[NSDateComponents alloc] init];
       //        dateComponents.hour = 8;
       //        dateComponents.minute = 30;
       //        UNCalendarNotificationTrigger *trigger = [UNCalendarNotificationTrigger triggerWithDateMatchingComponents:dateComponents repeats:YES];
   
       UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
       content.title = [NSString localizedUserNotificationStringForKey:@"Elon said:" arguments:nil];
       content.body = [NSString localizedUserNotificationStringForKey:@"Hello Tom！Get up, let's play with Jerry!"
                                                            arguments:nil];
       content.sound = [UNNotificationSound defaultSound];
   
       /// 4. update application icon badge number
       content.badge = @([[UIApplication sharedApplication] applicationIconBadgeNumber] + 1);
       // Deliver the notification in five seconds.
       UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger
                                                     triggerWithTimeInterval:5.f repeats:NO];
       UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"FiveSecond"
                                                                             content:content trigger:trigger];
       /// 3. schedule localNotification
       UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
       [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
           if (!error) {
               NSLog(@"add NotificationRequest succeeded!");
           }
       }];

然后它会显示如下：

在背景中：qazxsw poi锁屏： qazxsw poi

如果默认重复只显示一个而不是在iOS9的锁定屏幕上显示多个：并且还自动支持3D Touch

我在这里写了一个演示：http://i67.tinypic.com/98t75s.jpg。

Answer 3

以下是几个步骤：

1. 确保您拥有该权限。如果没有，请使用UNUserNotificationCenter.current（）。requestAuthorization来获取它。或者如果您想要多次显示请求，请关注http://a67.tinypic.com/dorw3b.jpg。
2. 如果要显示通知前景，必须将UNUserNotificationCenterDelegate分配给某个地方。
3. 告诉我代码 iOS10AdaptationTips

Answer 4

我解决了我的问题如下（Firebase，Swift 3）：

在AppDelegate上找到此方法：

answer

找到这一行：

@IBAction func sendPressed(_ sender: AnyObject) {
    let content = UNMutableNotificationContent()
    content.title = "Hello"
    content.body = "What up?"
    content.sound = UNNotificationSound.default()

    let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 5, repeats: false)
    let request = UNNotificationRequest.init(identifier: "FiveSecond", content: content, trigger: trigger)

    let center = UNUserNotificationCenter.current()
    center.add(request) { (error) in
        print(error)
    }
}

override func viewDidLoad(_ animated: Bool) {
    super.viewDidLoad(animated)

    // Assign the delegate
    UNUserNotificationCenter.current().delegate = self

    // Ask the permission
    let center = UNUserNotificationCenter.current()
    center.requestAuthorization([.alert, .sound]) { (granted, error) in
        if granted {
            // do something
        }
    }
}
// Remember to add UNUserNotificationCenterDelegate to your view controller
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {
    print("Got the msg...")
    completionHandler([.badge, .sound, .alert])
}

结束集：

func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void) {

如果未将演示文稿选项传递给completionHandler方法，则不会触发通知。

Answer 5

我已经为Swift 3做了一个可能有帮助的实现，你可以在这里查看：completionHandler()