检查 UILocalNotification 弃用后是否启用了用户通知

Question

在我的应用中，我希望能够检查用户是否启用了通知。在 iOS 10 中，我使用委托中的支票完成了此操作。

此检查现已弃用，我想更新它，但我不知道在 iOS 11.

中使用什么

弃用警告如下：

currentUserNotificationSettings' was deprecated in iOS 10.0: Use UserNotifications Framework's -[UNUserNotificationCenter getNotificationSettingsWithCompletionHandler:] and -[UNUserNotificationCenter getNotificationCategoriesWithCompletionHandler:]

我尝试借助此警告更新代码，但我无法弄清楚。

如果有人无论如何都可以建议进行这样的检查，那将大有帮助。我一直在使用 iOS 10 的代码如下，谢谢。

let notificationType = UIApplication.shared.currentUserNotificationSettings!.types
if notificationType == [] {
    print("Notifications are NOT enabled")
} else {
    print("Notifications are enabled")
}

Answer 1

第 1 步：import UserNotifications

第 2 步：

UNUserNotificationCenter.current().getNotificationSettings { (settings) in
  if settings.authorizationStatus == .authorized {
    // Notifications are allowed
  }
  else {
    // Either denied or notDetermined
  }
}

检查设置对象以获取更多信息。

Answer 2

第一步：

您必须将头文件添加为

import UserNotifications

我已经使用 checkpushNotification 方法来检查用户是否启用通知。使用从 AppDelegate class 的 didFinishLaunchingWithOptions 调用此方法。希望对你有帮助，有什么问题可以在下方留言。

最后一步：

func checkPushNotification(){
        if #available(iOS 10.0, *) {
            UNUserNotificationCenter.current().getNotificationSettings(){ (setttings) in
                
                switch setttings.authorizationStatus{
                case .authorized:
                    
                    print("enabled notification setting")
                    
                case .denied:
                    
                    print("setting has been disabled")
                    
                case .notDetermined:
                    print("something vital went wrong here")
                }
            }
        } else {

            let isNotificationEnabled = UIApplication.shared.currentUserNotificationSettings?.types.contains(UIUserNotificationType.alert)
            if isNotificationEnabled{
                
                print("enabled notification setting")
            }else{
                
                print("setting has been disabled")
            }
        }
    }

如果你想要启用或禁用某些布尔输出，那么你应该实现完成处理程序来解决它。

func checkPushNotification(checkNotificationStatus isEnable : ((Bool)->())? = nil){
        
        if #available(iOS 10.0, *) {
            UNUserNotificationCenter.current().getNotificationSettings(){ (setttings) in
                
                switch setttings.authorizationStatus{
                case .authorized:
                    
                    print("enabled notification setting")
                    isEnable?(true)
                case .denied:
                    
                    print("setting has been disabled")
                    isEnable?(false)
                case .notDetermined:
                    
                    print("something vital went wrong here")
                    isEnable?(false)
                }
            }
        } else {
            
            let isNotificationEnabled = UIApplication.shared.currentUserNotificationSettings?.types.contains(UIUserNotificationType.alert)
            if isNotificationEnabled == true{
                
                print("enabled notification setting")
                isEnable?(true)

            }else{
                
                print("setting has been disabled")
                isEnable?(false)
            }
        }
    }

并将其简单地称为

  self.checkPushNotification {  (isEnable) in
    print(isEnable)
    // you know notification status.
}

Answer 3

我想你可以打电话给 UIApplication.shared.isRegisteredForRemoteNotifications

检查 UILocalNotification 弃用后是否启用了用户通知

Check whether user notifications are enabled after UILocalNotification deprecation

cocoa-touch

ios

usernotifications