我有一个正常工作的应用程序，它的通知显示效果很好。现在我想处理一些通知事件，比如当用户点击横幅时。

我的 iOS 部署目标是 11.0，与我的部署目标相同。

我在 AppDelegate.swift 文件中实现了所有内容:

    class AppDelegate: UIResponder, UIApplicationDelegate, UNUserNotificationCenterDelegate, RCTBridgeDelegate {
var window: UIWindow?
  var didFinishLaunching: Bool = false

  func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {

    let bridge = RCTBridge(delegate: self, launchOptions: launchOptions)
    let rootView = RCTRootView(bridge: bridge, moduleName: "root", initialProperties: nil)
    rootView?.backgroundColor = UIColor(red: 1.0, green: 1.0, blue: 1.0, alpha: 1)

    self.window = UIWindow(frame: UIScreen.main.bounds)

    let rootViewController = UIViewController()
    rootViewController.view = rootView
    self.window?.rootViewController = rootViewController
    self.window?.makeKeyAndVisible()

    didFinishLaunching = true

    Fabric.with([Crashlytics.self])

    FirebaseApp.configure()


    // This block is necessary to ask user authorization to receive notification
    if #available(iOS 10.0, *) {
      let center = UNUserNotificationCenter.current()
      center.delegate = self
      center.requestAuthorization(options: [.badge, .sound, .alert], completionHandler: {(grant, error) in
        if error == nil {
          if grant {
            print("### permission granted")
            application.registerForRemoteNotifications()
          } khác {
            //User didn't grant permission
          }
        } khác {
          print("error: ",error)
        }
      })
    } khác {
      // Fallback on earlier versions
      let notificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
      application.registerUserNotificationSettings(notificationSettings)
    }

    self.firstLaunchAction()
    self.initTracker()

    RNSplashScreen.showSplash("LaunchScreen", inRootView: rootViewController.view)

    trả về đúng
  }



  func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
    let tokenParts = deviceToken.map { data -> String in
      return String(format: "%02.2hhx", data)
    }
    let token = tokenParts.joined()
    print("### Device Token: \(token)")
  }

  func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error: Error) {
    print("### Failed to register for remote notifications with error: \(error)")
  }

  func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
            if response.actionIdentifier == "like" {
                  print("### Handle like action identifier")
              } else if response.actionIdentifier == "save" {
                  print("### Handle save action identifier")
              } khác {
                  print("### No custom action identifiers chosen")
              }
            // Make sure completionHandler method is at the bottom of this func
            completionHandler()
        }

如您所见，我使用 Firebase 发送远程通知，所以我在 json 中有一个有效负载，如下所示:

trở lại {
        notification: {
            title,
            thân hình
        },
        data: {
            title,
            body,
            ...data
        },
        android: {
            ttl: 3600 * 1000,
            notification: {
                icon: 'stock_ticker_update',
                color: '#002559'
            }
        },
        apns: {
            payload: {
                aps: {
                    alert: {
                        title: 'NITL ACUMEN BI RFS CODA Dev Offshore',
                        body: 'Send a Message - PN testing group'
                    },
                    sound: 'default'
                }
            }
        },
        condition
    };

我的大部分代码都是从网站上复制的。但我的实际行为是，当我点击通知横幅时，什么也没有发生……

我看到了通知横幅，所以我认为我的 APNs 注册没有问题。我不知道为什么 didReceive 没有在点击事件上触发。

我在实现过程中是否遗漏了什么？我的通知负载有误？

有人可以帮我找出我的错误在哪里吗？我已经阅读了无数没有结果的教程。一些帮助将不胜感激谢谢 :)

1 Câu trả lời

要支持后台更新通知，请确保负载的 aps 字典包含值为 1 的 content-available 键。

{
   "aps" : {
       "content-available" : 1,
       "sound" : “default"
       ....
   },
   ....
}

当后台更新通知发送到用户设备时，iOS 会在后台唤醒您的应用，并为其提供最多 30 秒的运行时间。在 iOS 中，系统通过调用应用委托(delegate)的 application: didReceiveRemoteNotification: fetchCompletionHandler: 方法传递后台更新通知。

Trích dẫn:Creating the Remote Notification Payload

关于ios - UNUserNotificationCenter didReceive/willPresent 未触发 ios 11，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/56953675/