UNUserNotificationCenter didReceive / willPresent未触发ios 11

Question

我有一个正常工作的应用程序，它的通知显示得很好。现在，我想在通知时处理一些事件，比如当用户点击横幅时。

我的iOS部署目标是11.0，对于我的部署目标也是如此。

我实现了AppDelegate.swift文件中的所有内容：

    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()
          } else {
            //User didn't grant permission
          }
        } else {
          print("error: ",error)
        }
      })
    } else {
      // 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)

    return true
  }



  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")
              } else {
                  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，因此在json中有如下所示的有效负载：

return {
        notification: {
            title,
            body
        },
        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
    };

我的大部分代码是从网站复制的。但我的实际行为是，当我点击通知横幅时，什么都不会发生.

我看到了噪音横幅，所以我认为我的APN注册没有问题。我不知道为什么didReceive不触发单击事件。

在我的实现过程中，我会错过什么吗？我的通知负载有问题吗？

有人能帮我找出我的错误在哪里吗？我读过无数没有结果的教程。我们会非常感谢你的帮助。)

Answer 1

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

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

当后台更新通知传递到用户的设备时，iOS会在后台唤醒您的应用程序，并给它30秒的时间运行。在iOS中，系统通过调用应用程序委托的application: didReceiveRemoteNotification: fetchCompletionHandler:方法来传递后台更新通知。

参考资料：创建远程通知负载