在我们的项目中,我们想更改Remote Notification的标题和正文。这样,我们将生成一个本地通知,并显示具有更改的标题和正文的本地通知,并隐藏推送通知。但是在这种情况下,当应用程序处于后台并终止状态时,它将显示“远程通知”而不是“本地通知”。但是我们要显示本地通知,而不是推入将显示通知。该怎么做?
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Swift.Void) {
if notification.request.identifier != "local_notification1"{
self.isAdded = false
}
let name = (ContactsManager.shared.getContacName(withPhoneNumber:notification.request.content.title) != nil) ? ContactsManager.shared.getContacName(withPhoneNumber:notification.request.content.title) :
notification.request.content.title
let notificationContent = UNMutableNotificationContent()
// notificationContent.userInfo = notification.request.content.userInfo
notificationContent.body = notification.request.content.body
notificationContent.title = name!
debugPrint("name title is %@ ", name)
debugPrint("notificationContent title is %@ ", notificationContent.title)
notificationContent.sound = .default
let notificationTrigger = UNTimeIntervalNotificationTrigger(timeInterval: 0.1, repeats: false)
let notificationRequest = UNNotificationRequest(identifier: "local_notification1", content: notificationContent, trigger: notificationTrigger)
if !isAdded {
UNUserNotificationCenter.current().add(notificationRequest) { (error) in
if let error = error {
debugPrint("Unable to Add Notification Request (\(error), \(error.localizedDescription))")
}else {
print("is Shown")
}
self.isAdded = true
}
completionHandler([])
}
completionHandler([.alert,.sound])
}
}
有两种实现方法,每种方法都有自己的权衡:
Silent notifications不会向用户显示任何内容,因此您无需隐藏任何内容。但是它们的优先级较低,因此到达时间不可靠。
PushKit notifications即使被杀死也唤醒您的应用。但是只允许将它们用于特定目的:更新Apple Watch,响应文件提供者的更改以及接收VoIP呼叫。
我认为最好的选择可能是3:首先从服务器发送正确的通知数据...
您可以在modify的帮助下UNNotificationServiceExtension
远程通知的内容
第一优先UNNotificationServiceExtension
修改内容和。
didReceive(_ request: UNNotificationRequest, withContentHandler contentHandler: @escaping (UNNotificationContent) -> Void) {
中的更新内容注意:必需的iOS 10 +