在iOS 10中添加本地通知 - Swift 3-Java 学习之路

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
    }
}

我在项目中也有一个 Notification Content Extension ，但它似乎根本没有被触发，任何想法我从用户文档中尝试了这个例子，但它并没有告诉我更多或者我错过了它 .

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 .

5 回答

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
    }

Edit: 您不需要将您的应用程序置于后台，以便从iOS 10开始提供通知 .

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 .

回复于 2024-05-14T10:23:11+08:00

使用Objective-C实现：

我在这里写了一个Demo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：
enter image description here

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!");
        }
    }];

然后它会显示如下：

在后台：
enter image description here
锁屏：

enter image description here

如果默认重复只显示一个
enter image description here
而不是在iOS9的锁定屏幕上显示多个：http://i67.tinypic.com/98t75s.jpg并且还自动支持3D Touch http://a67.tinypic.com/dorw3b.jpg

我在这里写了一个Demo：iOS10AdaptationTips .

回复于 2024-05-14T10:23:11+08:00

以下是几个步骤：

确保您拥有 permission . 如果没有，请使用UNUserNotificationCenter.current（） . requestAuthorization来获取它 . 如果您想多次显示请求，请按照answer进行操作 .
如果要显示通知 foreground ，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])
}

回复于 2024-05-14T10:23:11+08:00

I solved my problem as follows (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()

结束集：

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

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

回复于 2024-05-14T10:23:11+08:00

17

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：https://stackoverflow.com/a/45381380/2296630

回复于 2024-05-14T10:23:11+08:00

在iOS 10中添加本地通知 - Swift 3

5 回答

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