iOS 10不会调用Notification Service Extension [英] iOS 10 don't call Notification Service Extension

问题描述

我尝试实现新的通知服务扩展，但我遇到了问题。

I tried to implement the new Notification Service Extension, but I have a problem.

在我的NotificationService.swift文件中，我有以下代码：

In my NotificationService.swift file I have this code:

class NotificationService: UNNotificationServiceExtension {

var contentHandler: ((UNNotificationContent) -> Void)?
var bestAttemptContent: UNMutableNotificationContent?

override func didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
    self.contentHandler = contentHandler
    bestAttemptContent = (request.content.mutableCopy() as? UNMutableNotificationContent)

    if let bestAttemptContent = bestAttemptContent {
        // Modify the notification content here...
        bestAttemptContent.title = "\(bestAttemptContent.title) [modified]"

        print(bestAttemptContent.body)

        contentHandler(bestAttemptContent)
    }
}

override func serviceExtensionTimeWillExpire() {
    // Called just before the extension will be terminated by the system.
    // Use this as an opportunity to deliver your "best attempt" at modified content, otherwise the original push payload will be used.
    if let contentHandler = contentHandler, let bestAttemptContent =  bestAttemptContent {
        contentHandler(bestAttemptContent)
    }
}
}

当我收到推送通知时， didReceive（_ request：UNNotificationRequest，withContentHandler contentHandler：@escaping（UNNotificationContent） - > Void）从未调用的方法。

When I got a push notification the didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) method never called.

也许我误解了这个扩展是如何工作的？

Maybe I misunderstood how this extension is working?

推荐答案

在服务扩展上检查您的部署目标。

在使用10.1的设备上进行测试时我将部署目标设置为10.2，直到我才调用扩展改变了

I had deployment target set to 10.2 when testing on device with 10.1 and extension wasn't called until I changed it.

另一个问题可能是调试..为了使其工作您需要附加服务扩展流程。在Xcode菜单中，Debug> Attach To Process>扩展名称

Another issue might be debugging.. In order to make it work You need to attach Service Extension Process. In Xcode menu Debug > Attach To Process > Name of your extension

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