ios - 当应用程序被杀死或屏幕被锁定时，UNTextInputNotificationAction 不会被调用 swift 3

Question

这就是我注册通知操作的方式

func registerForPushNotifications() {
    UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) {
        (granted, error) in
        print("Permission granted: \(granted)")

        guard granted else { return }

        let action = UNTextInputNotificationAction(identifier: replyActionIdentifier, title: "Answer message", options: [UNNotificationActionOptions.init(rawValue: 0)], textInputButtonTitle: "Send", textInputPlaceholder: "Type your message")

        let newsCategory = UNNotificationCategory(identifier: categoryIdentifier,
                                                  actions: [action],
                                                  intentIdentifiers: [],
                                                  options: [])

        UNUserNotificationCenter.current().setNotificationCategories([newsCategory])

        self.getNotificationSettings()
    }
}

这里我遵循协议(protocol) UNUserNotificationCenterDelegate 并处理通知操作

extension AppDelegate: UNUserNotificationCenterDelegate {

func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {

    let userInfo = response.notification.request.content.userInfo

    // check if there is information in push's payload
    guard let custom = userInfo["data"] as? [String: AnyObject] else {
        completionHandler()
        return
    }

    switch response.actionIdentifier {
    case replyActionIdentifier:

        if let message = response as? UNTextInputNotificationResponse {
            if message.userText.isEmpty { return }

            // encrypt the message
            let publicKey = try! PublicKey(pemEncoded: Constantes.PUSH_KEY)
            let clear = try! ClearMessage(string: message.userText, using: .utf8)
            let encrypted = try! clear.encrypted(with: publicKey, padding: .PKCS1)
            let messageUser = encrypted.base64String

            // data inside the push
            guard let user_id = custom["me"] as? String, let room_id = custom["room_id"] as? String else {
                completionHandler()
                return
            }

            // secutiry elements
            guard let token = String(data: Keychain.load("push_token")!, encoding: .utf8),
                let uuid = String(data: Keychain.load("UUID")!, encoding: .utf8) else {
                completionHandler()
                return
            }

            let key = Constantes.KEY
            let chats = Chats()

            // this executes an http request
            chats.sendMessage(token: token, uuid: uuid, key: key!, message: messageUser, user_id: user_id, room_id: room_id)
        }

    default: break
    }
    completionHandler()

}

在之前的函数中，我执行了一个 http 请求来回复推送通知中的消息。真正的问题发生在我响应通知中的消息并点击“发送”按钮时，有时会执行 http 请求，有时不会。我已经在我的应用程序的功能中添加了后台模式，事实上我从 api 成功接收到通知，api 在 1 中发送值“content-available”。最后，证书 .pem 在服务器中正常工作，所以。我错过了什么？

Answer 1

我只是遇到了这个问题，不知道为什么我的快速回复在应用程序处于后台时有效，但在它被杀死时却无效。然后我开始通过源代码寻找一些东西，并在 UNNotificationCenter 中偶然发现了这个。 :

// The method will be called on the delegate when the user responded to the notification by opening the application, dismissing the notification or choosing a UNNotificationAction. The delegate must be set before the application returns from application:didFinishLaunchingWithOptions:.
- (void)userNotificationCenter:(UNUserNotificationCenter *)center didReceiveNotificationResponse:(UNNotificationResponse *)response withCompletionHandler:(void(^)(void))completionHandler

如果您没看错评论的最后一部分，它说必须在从 application:didFinishLaunchingWithOptions: 返回之前设置委托(delegate)

这就是我的错误所在。我在完成 UNUserNotificationCenter.current().getNotificationSettings 时设置委托(delegate)

因此，您所要做的就是确保像这样设置委托(delegate) UNUserNotificationCenter.current().delegate = self之前 application:didFinishLaunchingWithOptions:返回