当用户从后台或前台点击推送通知横幅时，如何处理不同的逻辑？

Question

我有这个来处理推送通知：

func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = notification.request.content.userInfo
    save(userInfo)
    // Do something with userInfo based on whether we tapped the push notif whe the app is opened or in the background

    completionHandler()
}

现在我想做的是实现一个逻辑，当应用程序打开（前台）或隐藏（背景）时点击推送通知时，该逻辑将有很大不同。我如何区分这两者？谢谢。

Answer 1

您需要做的就是查看

applicationState

的

UIApplication

属性。

func userNotificationCenter(_ center: UNUserNotificationCenter,
                            didReceive response: UNNotificationResponse,
                            withCompletionHandler completionHandler: @escaping () -> Void) {
    let userInfo = notification.request.content.userInfo
    save(userInfo)

    if UIApplication.shared.applicationState == .active {
        // App in foreground when user tapped notification
    } else {
        // App in background when user tapped notification
    }

    completionHandler()
}