【发布时间】：2016-05-15 15:58:26
【问题描述】：
这是我的代码：
@IBAction func sendSweet(sender: AnyObject) {
//delegate method
let newSweet = CKRecord(recordType: "Extra1")
newSweet["content"] = textField.text
let publicData = CKContainer.defaultContainer().publicCloudDatabase
publicData.saveRecord(newSweet, completionHandler: { (record:CKRecord?, error:NSError?) -> Void in
if error == nil {
dispatch_async(dispatch_get_main_queue(), { () -> Void in
self.tableView.beginUpdates()
self.sweets.insert(newSweet, atIndex: 0)
let indexPath = NSIndexPath(forRow: 0, inSection: 0)
self.tableView.insertRowsAtIndexPaths([indexPath], withRowAnimation: .Top)
self.tableView.endUpdates()
self.textField.text = ""
self.textField.resignFirstResponder()
})
}})
// Put the CloudKit private database in a constants
let privateDatabase = CKContainer.defaultContainer().privateCloudDatabase
// Create subscription and set three of its properties (an id, a predicate, and options)
let friendsSubscription = CKSubscription(recordType: "Extra1",
predicate: NSPredicate(format: "TRUEPREDICATE"),
subscriptionID: "Extra1",
options: .FiresOnRecordCreation)
// Create a notification and set two of its properties (alertBody and shouldBadge)
let notificationInfo = CKNotificationInfo()
notificationInfo.alertBody = "New message in Lms Chat"
notificationInfo.shouldBadge = false
// Attach the notification to the subscription
friendsSubscription.notificationInfo = notificationInfo
// Save the subscription in the private database
privateDatabase.saveSubscription(friendsSubscription) {recordReturned, error in
// On the main thread, display an error/success message in the textView
if error != nil {
NSOperationQueue.mainQueue().addOperationWithBlock {
self.textField.text = "Cloud error\n\(error!.localizedDescription)"
}
} else {
NSOperationQueue.mainQueue().addOperationWithBlock {
self.textField.text = ""
}
}
}
}
func textFieldShouldEndEditing(textField: UITextField!) -> Bool { //delegate method
return false
}
func textFieldShouldReturn(textField: UITextField!) -> Bool { //delegate method
textField.resignFirstResponder()
return true
}
这是一个消息应用程序，因此人们可以互相发送消息，但我也希望他们接收通知。这是通知代码，我在 App Delegate 中也有一些通知代码：
import UIKit
import CloudKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
let notificationSettings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound], categories: nil)
UIApplication.sharedApplication().registerUserNotificationSettings(notificationSettings)
UIApplication.sharedApplication().registerForRemoteNotifications()
return true
}
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
let cloudKitNotification = CKNotification(fromRemoteNotificationDictionary: userInfo as! [String:NSObject])
if cloudKitNotification.notificationType == CKNotificationType.Query {
dispatch_async(dispatch_get_main_queue(), { () -> Void in
NSNotificationCenter.defaultCenter().postNotificationName("performReload", object: nil)
})
}
}
func resetBadge () {
let badgeReset = CKModifyBadgeOperation(badgeValue: 0)
badgeReset.modifyBadgeCompletionBlock = { (error) -> Void in
if error == nil {
UIApplication.sharedApplication().applicationIconBadgeNumber = 0
}
}
CKContainer.defaultContainer().addOperation(badgeReset)
}
func applicationWillResignActive(application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
}
func applicationDidEnterBackground(application: UIApplication) {
resetBadge()
}
func applicationWillEnterForeground(application: UIApplication) {
dispatch_async(dispatch_get_main_queue(), { () -> Void in
NSNotificationCenter.defaultCenter().postNotificationName("performReload", object: nil)
})
}
func applicationDidBecomeActive(application: UIApplication) {
resetBadge()
}
func applicationWillTerminate(application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
}
但即使我拥有每次有人发送消息时发出通知所需的所有代码，也不会收到通知。我错过了什么吗？谢谢！
【问题讨论】：
标签： ios swift push-notification apple-push-notifications cloudkit