swift - 快速分割任意对象

Question

我想获取我的区域设置通知的用户信息。我这样做是这样的:

var app:UIApplication = UIApplication.sharedApplication()
    for oneEvent in app.scheduledLocalNotifications {
        var notification = oneEvent as! UILocalNotification
        ate = gregorian.dateFromComponents(comps)!

        var OldUUID = notification.userInfo
    }
}

结果是:

{UUID = WhmMbGrCkJ;}"

但我只想要这部分:WhmMbGrCkJ我尝试这样的事情:

        var OldUUID = notification.userInfo
        var OldUUIDSplit = OldUUID.componentsSeparatedByString("=")
        var OldUUIDSplit2 = OldUUIDSplit[1].stringByReplacingOccurrencesOfString(" ", withString: "")
        var OldUUIDSplit3 = OldUUIDSplit2.componentsSeparatedByString(";")
        var NewOldUUID = OldUUIDSplit3[0]

我收到此错误:

Cannot invoke 'componentsSeparatedByString' with an argument list of type '(String)'

如何解决？

Answer 1

这应该可以完成工作。 userInfo 只是一个字典，因此您可以通过键获取值:

if let dict = notification.userInfo, OldUUID = dict["UUID"] {
    println("\(OldUUID)")
}