如何从nsdictionary swift获取数组

Question

我有json对象。我正在解析json并将其存储为disctionary。现在我想从disctionary获取这些数组，但是当我使用objectForKey（“comingsentointments”）时，它什么都没给我

{
  "upcomingAppointments": [],
  "upcomingFollowUps": [],
  "followUps": []
}

Answer 1

试试这个：

var dictionary = //NSDictionary from somewhere...

if let upcomingAppointments = dictionary["upcomingAppointments"] as? NSArray {
    //Process your appointments here.
}

//Same goes for other such json fields.