CKNotificationInfo soundName不起作用

Sbuscription创建如下。 它有效，但没有声音产生，为什么？ Doc说： if you specify the string default for this property, the system plays the default alert sound.

 let s2 = CKSubscription(recordType: recordType, predicate: NSPredicate(format: "destination = %@", CKReference(recordID: CKRecordID(recordName: loggedInUserSettingRecordName!), action: .DeleteSelf)), options: .FiresOnRecordCreation) s2.notificationInfo = CKNotificationInfo() s2.notificationInfo.alertBody = " " s2.notificationInfo.soundName = "default" subscriptionsToSave.append(s2) 

---

 s2.notificationInfo.soundName = UILocalNotificationDefaultSoundName 

也行不通

Answer 1

需要更新registerUserNotificationSettings方法调用。

 UIApplication.sharedApplication().registerUserNotificationSettings(UIUserNotificationSettings(forTypes: .Sound | .Alert, categories: nil))