Swift 2.0 问题显示带有自定义声音文件的通知

Question

当用户收到消息时，我正在尝试让我的应用发送带有自定义声音文件的通知，但 var pushData:NSDictionary = NSDictionary(dictionaryLiteral: "New Message "+myName,"alert","KeepNotification.wav","sound") 中出现错误 Xcode 说：无法使用类型为 '(dictionaryLiteral: String, String, String, String)' 的参数列表调用类型 'NSDictionary' 的初始化程序

我不知道这意味着什么，所以如果有人向我展示了正确的代码行，我将不胜感激。

if success == true {

                //This to push notification when message is sent successful with sound ********

                var myName = PFUser.currentUser().valueForKey("profileName") as! String

                var pushData:NSDictionary = NSDictionary(dictionaryLiteral: "New Message "+myName,"alert","KeepNotification.wav","sound")

                var uQuery:PFQuery = PFUser.query()
                uQuery.whereKey("username", equalTo: otherName)

                var pushQuery:PFQuery = PFInstallation.query()
                pushQuery.whereKey("user", matchesQuery: uQuery)

                var push:PFPush = PFPush()
                push.setQuery(pushQuery)



                push.setData(pushData as [NSObject : AnyObject])
                push.sendPushInBackgroundWithBlock{

                    (success:Bool! , error:NSError!) -> Void in

                }

                print("Push Sent")
                //-----------------------------------------------------------------
                print("Message Sent" + myName)
                self.messageTextView.text = ""
                self.mLabel.hidden = false
                self.refreshResullts()


            }

        }

    }

}

谢谢，如果有任何不清楚的地方，我会编辑我的问题。

Answer 1

如果您尝试初始化NSDictionary，那么您可以使用：

var pushData = ["alert" : "New Message "+ myName, "sound" : "KeepNotification.wav"]

请参阅 NSDictionary Class Reference 以了解可用于 NSDictionary 的所有初始化程序类型及其用法。