Question

所以我一直在尝试向新的UNUserNotificationCenter添加通知，但我似乎无法得到它。

我的视图控制器有一个动作：

Notification Content Extension

我在项目中也有一个DECLARE @employee table(EmployeeID varchar(10), DOB date); INSERT INTO @employee(EmployeeID, DOB) VALUES('0001', '01-Dec-1990'), ('0002', '06-Jan-1993'), ('0003', '04-Mar-1987'), ('0004', '12-Feb-1996'); DECLARE @dateStart date = '01-Jan-1990'; DECLARE @dateEnd date = '27-Feb-1997'; DECLARE @includeYear bit = 0; If @includeYear = 0 Begin SET @dateStart = CAST(('2000-' + CAST(MONTH(@dateStart) AS varchar(10)) + '-' + CAST(DAY(@dateStart) as varchar(10))) AS date); SET @dateEnd = CAST(('2000-' + CAST(MONTH(@dateEnd) AS varchar(10)) + '-' + CAST(DAY(@dateEnd) as varchar(10))) AS date); End If @includeYear = 1 Begin SELECT * FROM @employee WHERE DOB BETWEEN @dateStart AND @dateEnd End Else Begin SELECT * FROM @employee WHERE CAST(('2000-' + CAST(MONTH(DOB) AS varchar(10)) + '-' + CAST(DAY(DOB) as varchar(10))) AS date) BETWEEN @dateStart AND @dateEnd End，但它似乎根本没有被触发，任何想法我都错过了什么？我尝试了用户文档中的示例，但它没有告诉我更多或者我错过了它。

此处：https://developer.apple.com/reference/usernotifications/unmutablenotificationcontent

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

编辑：

因此将应用程序置于后台就可以了。

Answer 1

你需要注册通知......我试过了，这很有用。

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
    }

修改：您无需将应用程序置于后台，以便从iOS 10开始提供通知。

使用以下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：

我在这里写了一个演示项目：iOS10AdaptationTips。

导入UserNotifications

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

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：

安排localNotification

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!");
        }
    }];

那么它会显示如下：

背景：锁屏：

如果默认情况下重复只显示一个而不是在iOS9的锁定屏幕上显示许多： http://i67.tinypic.com/98t75s.jpg 并自动支持3D Touch http://a67.tinypic.com/dorw3b.jpg

我在这里写了一个演示：iOS10AdaptationTips。

Answer 3

以下是几个步骤：

确保您具有权限。如果不是，请使用 UNUserNotificationCenter.current（）。requestAuthorization 来获取。或者，如果您想显示多次弹出请求，请遵循answer。
如果要显示通知前景，则必须将 UNUserNotificationCenterDelegate 分配给某个地方。

给我看看代码

@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])
}

Answer 4

我解决了我的问题如下（Firebase，Swift 3）：

在AppDelegate上找到此方法：

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

找到这一行：

completionHandler()

结束设置：

completionHandler([.alert,.sound,.badge])

如果您未将演示文稿选项传递给completionHandler方法，则不会触发

。

Answer 5

我已经为Swift 3做了一个可能有用的实现，你可以在这里查看：https://stackoverflow.com/a/45381380/2296630

在iOS 10中添加本地通知 - Swift 3

5 个答案: