Swift 字典的 Swift 数组

Question

我将这个数组初始化为一个空数组：

var dataArray:[Any] = []

我将字典添加到dataArray，它看起来像这样：

[[onlineStatus: Offline, whatDoing: , gamerTag: KgLui720, id: 2533274926939486], [onlineStatus: Offline, whatDoing: , gamerTag: BigBear46, id: 2533274801083843], [onlineStatus: Online, whatDoing: Watching TV, gamerTag: PeeMilroy12, id: 2533274975595658], [onlineStatus: Offline, whatDoing: , gamerTag: BR0, id: 2533275031633640], [onlineStatus: Offline, whatDoing: , gamerTag: jerrycia224, id: 2533274959352491]]

字典数组：

var index = 0

while index < dataArray.count{
    let row = table.rowControllerAtIndex(index) as tableRowController
    let theScreenName:NSString = dataArray[index]["gamerTag"]
    row.screenNameLabel.setText(theScreenName)
    index++
}

这给出了错误：

'Any' does not have a member named subscript

任何帮助将不胜感激。

Answer 1

您应该更具体地了解您的数组可以存储的内容，即具有String 键和AnyObject 值的对象。因此，该数据类型的语法为[String: AnyObject]。这应该允许您使用下标符号：

var dataArray: [[String: AnyObject]] = []

你也可以投射它：

let theScreenName: NSString = (dataArray[index] as [String: AnyObject])["gamerTag"]

但是，如果您从一开始就明确表明这是您的意图，您的代码将会更加连贯。